Journal of Engineering, Design and TechnologyTable of Contents for Journal of Engineering, Design and Technology. List of articles from the current issue, including Just Accepted (EarlyCite)https://www.emerald.com/insight/publication/issn/1726-0531/vol/22/iss/2?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestJournal of Engineering, Design and TechnologyEmerald Publishing LimitedJournal of Engineering, Design and TechnologyJournal of Engineering, Design and Technologyhttps://www.emerald.com/insight/proxy/containerImg?link=/resource/publication/journal/626b29a7747bb88a5d5efa86a0f71e51/urn:emeraldgroup.com:asset:id:binary:jedt.cover.jpghttps://www.emerald.com/insight/publication/issn/1726-0531/vol/22/iss/2?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestScience mapping approach based review of thermal comfort studies in Indian residential buildingshttps://www.emerald.com/insight/content/doi/10.1108/JEDT-09-2021-0491/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestScience mapping is an essential application of visualization technology widely used in safety, construction management and environmental science. The purpose of this study was to explore thermal comfort in residential buildings (TCinRB) research in India, identify research trends using a science mapping approach and provide a perspective for recommending future research in TCinRB. This study used the VOSviewer tool to conduct a systematic analysis of the development trend in TCinRB studies in India based on Scopus Index articles published between 2001 and 2020. The annual numbers of articles, geographical locations of studies, major research organizations and authors, and the sources of journals on TCinRB were presented based on the analysis. Then, using co-authorship analysis, the collaborations among the major research groups were reported. Furthermore, research trends on TCinRB studies were visually explored using keyword co-occurrence analysis. The emerging research topics in the TCinRB research community were discovered by analyzing the authors’ keywords. The findings revealed that studies had been discovered to pay more attention to north-east India, vernacular architecture, Hyderabad apartments and temperature performance in the past two decades. Thermal adaptation, composite climate, evaporative cooling and clothing insulation are emerging research areas in the TCinRB domain. The findings summarized mainstream research areas based on Indian climatic zones, addressed current TCinRB research gaps and suggested future research directions. This review is particularly significant because it could help researchers understand the body of knowledge in TCinRB and opens the way for future research to fill an important research gap.Science mapping approach based review of thermal comfort studies in Indian residential buildings
Vigneshkumar Chellappa, Vasundhara Srivastava
Journal of Engineering, Design and Technology, Vol. 22, No. 2, pp.297-315

Science mapping is an essential application of visualization technology widely used in safety, construction management and environmental science. The purpose of this study was to explore thermal comfort in residential buildings (TCinRB) research in India, identify research trends using a science mapping approach and provide a perspective for recommending future research in TCinRB.

This study used the VOSviewer tool to conduct a systematic analysis of the development trend in TCinRB studies in India based on Scopus Index articles published between 2001 and 2020. The annual numbers of articles, geographical locations of studies, major research organizations and authors, and the sources of journals on TCinRB were presented based on the analysis. Then, using co-authorship analysis, the collaborations among the major research groups were reported. Furthermore, research trends on TCinRB studies were visually explored using keyword co-occurrence analysis. The emerging research topics in the TCinRB research community were discovered by analyzing the authors’ keywords.

The findings revealed that studies had been discovered to pay more attention to north-east India, vernacular architecture, Hyderabad apartments and temperature performance in the past two decades. Thermal adaptation, composite climate, evaporative cooling and clothing insulation are emerging research areas in the TCinRB domain. The findings summarized mainstream research areas based on Indian climatic zones, addressed current TCinRB research gaps and suggested future research directions.

This review is particularly significant because it could help researchers understand the body of knowledge in TCinRB and opens the way for future research to fill an important research gap.

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Science mapping approach based review of thermal comfort studies in Indian residential buildings10.1108/JEDT-09-2021-0491Journal of Engineering, Design and Technology2022-01-25© 2022 Emerald Publishing LimitedVigneshkumar ChellappaVasundhara SrivastavaJournal of Engineering, Design and Technology2222022-01-2510.1108/JEDT-09-2021-0491https://www.emerald.com/insight/content/doi/10.1108/JEDT-09-2021-0491/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2022 Emerald Publishing Limited
Free vibration analysis of a laminated honeycomb sandwich panel: a suggested analytical solution and a numerical validationhttps://www.emerald.com/insight/content/doi/10.1108/JEDT-10-2021-0536/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestThe purpose of this paper is to investigate the free vibration response of a laminated honeycomb sandwich panels (LHSP) for aerospace applications. Higher order shear deformation theory (HSDT) was simplified for the dynamic analysis of LHSP. Furthermore, the effects of honeycomb parameters on the value of natural frequency (NF) of vibration were explored. This paper applies HSDT to the analysis of composite LHSP to derive four vibration differential equations of motion and solve it to find the NF of vibration. Two analytical models (Nayak and Meunier models) were selected from literature for comparison of the NF of vibration. In addition, a numerical model was built by using ABAQUS and the results were compared. Furthermore, parametric studies were conducted to explore the effect of honeycomb parameters on the value of the NF of vibration. The present model is successful in simplifying HSDT for the analysis of LHSP. The first five natural frequencies of vibration were calculated analytically and numerically. In the parametric study, increasing core height or young’s modulus or changing laminate layup will increase the value of NF of vibration. Furthermore, increasing plate constraint (using clamped edge boundary condition) will increase the value of NF of vibrations. The current analysis is suitable for all-composite symmetric LHSP. However, for isotropic or non-symmetric materials, minor modifications might be adopted. The application of simplified HSDT to the analysis of LHSP is one of the important values of this research. The other is the successful and complete dynamic analysis of all-composite LHSP.Free vibration analysis of a laminated honeycomb sandwich panel: a suggested analytical solution and a numerical validation
Mustafa S. Al-Khazraji, M. J. Jweeg, S. H. Bakhy
Journal of Engineering, Design and Technology, Vol. 22, No. 2, pp.316-343

The purpose of this paper is to investigate the free vibration response of a laminated honeycomb sandwich panels (LHSP) for aerospace applications. Higher order shear deformation theory (HSDT) was simplified for the dynamic analysis of LHSP. Furthermore, the effects of honeycomb parameters on the value of natural frequency (NF) of vibration were explored.

This paper applies HSDT to the analysis of composite LHSP to derive four vibration differential equations of motion and solve it to find the NF of vibration. Two analytical models (Nayak and Meunier models) were selected from literature for comparison of the NF of vibration. In addition, a numerical model was built by using ABAQUS and the results were compared. Furthermore, parametric studies were conducted to explore the effect of honeycomb parameters on the value of the NF of vibration.

The present model is successful in simplifying HSDT for the analysis of LHSP. The first five natural frequencies of vibration were calculated analytically and numerically. In the parametric study, increasing core height or young’s modulus or changing laminate layup will increase the value of NF of vibration. Furthermore, increasing plate constraint (using clamped edge boundary condition) will increase the value of NF of vibrations.

The current analysis is suitable for all-composite symmetric LHSP. However, for isotropic or non-symmetric materials, minor modifications might be adopted.

The application of simplified HSDT to the analysis of LHSP is one of the important values of this research. The other is the successful and complete dynamic analysis of all-composite LHSP.

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Free vibration analysis of a laminated honeycomb sandwich panel: a suggested analytical solution and a numerical validation10.1108/JEDT-10-2021-0536Journal of Engineering, Design and Technology2022-01-21© 2022 Emerald Publishing LimitedMustafa S. Al-KhazrajiM. J. JweegS. H. BakhyJournal of Engineering, Design and Technology2222022-01-2110.1108/JEDT-10-2021-0536https://www.emerald.com/insight/content/doi/10.1108/JEDT-10-2021-0536/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2022 Emerald Publishing Limited
Improving the performance of civil engineering projects through the integrated design processhttps://www.emerald.com/insight/content/doi/10.1108/JEDT-10-2021-0519/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestCivil engineering projects around the world have been underperforming for a long time. While the complexity of these projects will continue to increase, there is an urgent need to perform better. Although the integrated design process is critical for project success, the literature lacks studies describing the link to project performance. Therefore, this study aims to investigate the dominant variables that affect the integrated design process and consequently project performance. A multiple case study was conducted to determine the dominant variables that affect the integrated design process and project performance. The research included four projects. Semi-structured interviews were the main source of data. The cases indicated that the extent to which an integrated approach is achieved in the design process is essential for project performance. This applies to the integration of stakeholders’ interests as well as the integration of disciplines. Above all, it was concluded that the project team participants’ competencies for integration are a dominant factor for project performance, as the integrated design process has changed from a technical challenge to an integrative one. This study provides insights into the dominant variable of the integrated design process that affects project performance, which is underexposed in the literature. The study results reveal the importance of competencies related to integration and adoption of the design problem context, which are not yet included in civil engineering design methods. In this respect, empathy is introduced as a new and critical competence for the civil engineering industry, which needs further research.Improving the performance of civil engineering projects through the integrated design process
Guus Keusters, Hans Bakker, Erik-Jan Houwing
Journal of Engineering, Design and Technology, Vol. 22, No. 2, pp.344-364

Civil engineering projects around the world have been underperforming for a long time. While the complexity of these projects will continue to increase, there is an urgent need to perform better. Although the integrated design process is critical for project success, the literature lacks studies describing the link to project performance. Therefore, this study aims to investigate the dominant variables that affect the integrated design process and consequently project performance.

A multiple case study was conducted to determine the dominant variables that affect the integrated design process and project performance. The research included four projects. Semi-structured interviews were the main source of data.

The cases indicated that the extent to which an integrated approach is achieved in the design process is essential for project performance. This applies to the integration of stakeholders’ interests as well as the integration of disciplines. Above all, it was concluded that the project team participants’ competencies for integration are a dominant factor for project performance, as the integrated design process has changed from a technical challenge to an integrative one.

This study provides insights into the dominant variable of the integrated design process that affects project performance, which is underexposed in the literature. The study results reveal the importance of competencies related to integration and adoption of the design problem context, which are not yet included in civil engineering design methods. In this respect, empathy is introduced as a new and critical competence for the civil engineering industry, which needs further research.

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Improving the performance of civil engineering projects through the integrated design process10.1108/JEDT-10-2021-0519Journal of Engineering, Design and Technology2022-01-27© 2022 Emerald Publishing LimitedGuus KeustersHans BakkerErik-Jan HouwingJournal of Engineering, Design and Technology2222022-01-2710.1108/JEDT-10-2021-0519https://www.emerald.com/insight/content/doi/10.1108/JEDT-10-2021-0519/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2022 Emerald Publishing Limited
Secured platform for healthcare data: privacy preservation based blockchain environmenthttps://www.emerald.com/insight/content/doi/10.1108/JEDT-09-2021-0494/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestTo make more smart health-care system, the health-care data should be shared in the secure manner, and it improves health-care service quality. This paper aims to implement a modern decentralized blockchain, safe and easy-to-use health-care technology application in the cloud. On observing the graph, the convergence analysis of proposed Levy Flight-integrated moth flame optimization method at 80th iteration was 4.59%, 2.80%, 3.316%, 8.92% and 2.55% higher than the traditional models MFO, artificial bee colony (ABC), particle swarm optimization (PSO), moth search algorithm (MSA) and glow worm swarm optimization (GWSO), respectively, for Hungarian data set. Particularly, in best case scenario, the adopted method attains low cost value (5.672671) when compared to all other traditional models such as MFO (5.727314), ABC (5.711577), PSO (5.706499), MSA (5.764517) and GWSO (5.723353). The proposed method achieved effective performance in terms of key sensitivity, sanitization effectiveness, restoration effectiveness, etc.Secured platform for healthcare data: privacy preservation based blockchain environment
Nidhi Raghav, Anoop Kumar Bhola
Journal of Engineering, Design and Technology, Vol. 22, No. 2, pp.365-384

To make more smart health-care system, the health-care data should be shared in the secure manner, and it improves health-care service quality. This paper aims to implement a modern decentralized blockchain, safe and easy-to-use health-care technology application in the cloud.

On observing the graph, the convergence analysis of proposed Levy Flight-integrated moth flame optimization method at 80th iteration was 4.59%, 2.80%, 3.316%, 8.92% and 2.55% higher than the traditional models MFO, artificial bee colony (ABC), particle swarm optimization (PSO), moth search algorithm (MSA) and glow worm swarm optimization (GWSO), respectively, for Hungarian data set. Particularly, in best case scenario, the adopted method attains low cost value (5.672671) when compared to all other traditional models such as MFO (5.727314), ABC (5.711577), PSO (5.706499), MSA (5.764517) and GWSO (5.723353).

The proposed method achieved effective performance in terms of key sensitivity, sanitization effectiveness, restoration effectiveness, etc.

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Secured platform for healthcare data: privacy preservation based blockchain environment10.1108/JEDT-09-2021-0494Journal of Engineering, Design and Technology2022-03-28© 2022 Emerald Publishing LimitedNidhi RaghavAnoop Kumar BholaJournal of Engineering, Design and Technology2222022-03-2810.1108/JEDT-09-2021-0494https://www.emerald.com/insight/content/doi/10.1108/JEDT-09-2021-0494/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2022 Emerald Publishing Limited
Estimation of bearing capacity of shallow footings on layered sand using finite elements analysishttps://www.emerald.com/insight/content/doi/10.1108/JEDT-09-2021-0493/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestThis paper aims to estimate the bearing capacity of a surface strip and circular footings lying on layered sand using numerical limit analysis. Lower and upper bound limit analysis, as well as finite elements and second-order conic programming (SOCP), are used in this analysis. The yield criterion of Mohr-Coulomb is used to model soil behavior. Using this technique, stringent lower and upper bounds on ultimate bearing capacity can be achieved by assuming an associated flow law. The obtained results indicate that the exact collapse load is typically being bracketed to within 6% about a mean of both the bounds. The obtained results are compared with the existing literature wherever applicable. To the best of the authors’ knowledge, no study has used lower and upper bound limit analysis, as well as finite elements and SOCP, to estimate the bearing capacity of a surface strip and circular footings lying on layered sand.Estimation of bearing capacity of shallow footings on layered sand using finite elements analysis
Pragyan Paramita Das, Vishwas Nandkishor Khatri, Rahul Doley, Rakesh Kumar Dutta, Jitendra Singh Yadav
Journal of Engineering, Design and Technology, Vol. 22, No. 2, pp.385-403

This paper aims to estimate the bearing capacity of a surface strip and circular footings lying on layered sand using numerical limit analysis.

Lower and upper bound limit analysis, as well as finite elements and second-order conic programming (SOCP), are used in this analysis. The yield criterion of Mohr-Coulomb is used to model soil behavior. Using this technique, stringent lower and upper bounds on ultimate bearing capacity can be achieved by assuming an associated flow law.

The obtained results indicate that the exact collapse load is typically being bracketed to within 6% about a mean of both the bounds. The obtained results are compared with the existing literature wherever applicable.

To the best of the authors’ knowledge, no study has used lower and upper bound limit analysis, as well as finite elements and SOCP, to estimate the bearing capacity of a surface strip and circular footings lying on layered sand.

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Estimation of bearing capacity of shallow footings on layered sand using finite elements analysis10.1108/JEDT-09-2021-0493Journal of Engineering, Design and Technology2022-01-20© 2022 Emerald Publishing LimitedPragyan Paramita DasVishwas Nandkishor KhatriRahul DoleyRakesh Kumar DuttaJitendra Singh YadavJournal of Engineering, Design and Technology2222022-01-2010.1108/JEDT-09-2021-0493https://www.emerald.com/insight/content/doi/10.1108/JEDT-09-2021-0493/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2022 Emerald Publishing Limited
Exploring the impact of social capitals and knowledge creation on construction firms performance in the COVID-19 erahttps://www.emerald.com/insight/content/doi/10.1108/JEDT-10-2021-0569/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestCreativity and productivity are important factors for corporate and government institutions in the COVID-19 era. As a result, there is an urgent need to ensure that construction projects can recover adequately to survive potential surges or even potential epidemics. Therefore, this study aims to explore social capital by examining the effect/impact of knowledge creation on construction performance in the COVID-19 era. A simple random sampling approach focused on Ghanaian construction firms was used. Completed responses were obtained and analyzed from employees who had tasks on sites. SmartPLS 3.3.3 and Statistical Package for Social Sciences v. 26 was used. One key finding from this research was that construction firms with solid social capital built by their management staff are more connected and have better adaptive systems than firms with low capital. A company’s development programs must concentrate not only on the development of targeted or selective know-how and professional abilities but also on capacity creating, collaboration and knowledge creation and sharing among its employees. Using this study’s findings, construction professionals can develop successful solutions to the COVID-19 epidemic and future emergencies. Additionally, the comprehensive exposition of the implications, constraints and preventive methods in this study may enable scholars to discover current gaps in the literature and investigate other elements of the pandemic’s influence on the construction industry.Exploring the impact of social capitals and knowledge creation on construction firms performance in the COVID-19 era
Fredrick Ahenkora Boamah, Jianhua Zhang, Muhammad Usman Shehzad, Sherani , Dandan Wen
Journal of Engineering, Design and Technology, Vol. 22, No. 2, pp.404-421

Creativity and productivity are important factors for corporate and government institutions in the COVID-19 era. As a result, there is an urgent need to ensure that construction projects can recover adequately to survive potential surges or even potential epidemics. Therefore, this study aims to explore social capital by examining the effect/impact of knowledge creation on construction performance in the COVID-19 era.

A simple random sampling approach focused on Ghanaian construction firms was used. Completed responses were obtained and analyzed from employees who had tasks on sites. SmartPLS 3.3.3 and Statistical Package for Social Sciences v. 26 was used.

One key finding from this research was that construction firms with solid social capital built by their management staff are more connected and have better adaptive systems than firms with low capital. A company’s development programs must concentrate not only on the development of targeted or selective know-how and professional abilities but also on capacity creating, collaboration and knowledge creation and sharing among its employees.

Using this study’s findings, construction professionals can develop successful solutions to the COVID-19 epidemic and future emergencies. Additionally, the comprehensive exposition of the implications, constraints and preventive methods in this study may enable scholars to discover current gaps in the literature and investigate other elements of the pandemic’s influence on the construction industry.

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Exploring the impact of social capitals and knowledge creation on construction firms performance in the COVID-19 era10.1108/JEDT-10-2021-0569Journal of Engineering, Design and Technology2022-01-20© 2022 Emerald Publishing LimitedFredrick Ahenkora BoamahJianhua ZhangMuhammad Usman ShehzadSherani Dandan WenJournal of Engineering, Design and Technology2222022-01-2010.1108/JEDT-10-2021-0569https://www.emerald.com/insight/content/doi/10.1108/JEDT-10-2021-0569/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2022 Emerald Publishing Limited
Analysis and comparison of flow velocities and in-cylinder temperature distributions to quantify oxides of nitrogen in a compression ignition engine using diesel and biodiesel fuelshttps://www.emerald.com/insight/content/doi/10.1108/JEDT-09-2021-0480/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestCombustion of fuel with oxidizer inside a combustion chamber of an internal combustion engine forms inevitable oxides of nitrogen (NOx) due to high temperature at different locations of the combustion chamber. This study aims to quantify NOx formed inside the combustion chamber using two fuels, a conventional diesel (n-heptane) and a biodiesel (methyl oleate). This research uses a computational fluid dynamics simulation of chemically reacting fluid flow to quantify and compare oxides of nitrogen (NOx) in a compression ignition (CI) engine. The study expends species transport model of ANSYS FLUENT. The simulation model has provided the temperature profile inside the combustion chamber, which is subsequently used to calculate NOx using the NOx model. The simulation uses a single component hydrocarbon and oxygenated hydrocarbon to represent fuels; for instance, it uses n-heptane (C7H16) for diesel and methyl-oleate (C19H36O2) for biodiesel. A stoichiometric air–fuel mixture is used for both fuels. The simulation runs a single cylinder CI engine of 650 cm3 swept volume with inlet and exhaust valves closed. The pattern for variation of velocity, an important flow parameter, which affects combustion and subsequently oxides of nitrogen (NOx) formation at different piston locations, is similar for the two fuels. The variations of in-cylinder temperature and NOx formation with crank angles have similar patterns for the fuels, diesel and biodiesel. However, the numerical values of in-cylinder temperature and mass fraction of NOx are different. The volume averaged static peak temperatures are 1,013 K in case of diesel and 1,121 K in case of biodiesel, while the mass averaged mass fractions of NOx are 15 ppm for diesel and 141 ppm for biodiesel. The temperature rise after combustion is more in case of biodiesel, which augments the oxides of nitrogen formation. A new parameter, relative mass fraction of NOx, yields 28% lower value for biodiesel than for diesel. This work uses a new concept of simulating simple chemical reacting system model to quantify oxides of NOx using single component fuels. Simplification has captured required fluid flow data to analyse NOx emission from CI engine while reducing computational time and expensive experimental tests.Analysis and comparison of flow velocities and in-cylinder temperature distributions to quantify oxides of nitrogen in a compression ignition engine using diesel and biodiesel fuels
Munir Ahmed, Muhammad Shakaib, Mubashir Ali Siddiqui
Journal of Engineering, Design and Technology, Vol. 22, No. 2, pp.422-437

Combustion of fuel with oxidizer inside a combustion chamber of an internal combustion engine forms inevitable oxides of nitrogen (NOx) due to high temperature at different locations of the combustion chamber. This study aims to quantify NOx formed inside the combustion chamber using two fuels, a conventional diesel (n-heptane) and a biodiesel (methyl oleate).

This research uses a computational fluid dynamics simulation of chemically reacting fluid flow to quantify and compare oxides of nitrogen (NOx) in a compression ignition (CI) engine. The study expends species transport model of ANSYS FLUENT. The simulation model has provided the temperature profile inside the combustion chamber, which is subsequently used to calculate NOx using the NOx model. The simulation uses a single component hydrocarbon and oxygenated hydrocarbon to represent fuels; for instance, it uses n-heptane (C7H16) for diesel and methyl-oleate (C19H36O2) for biodiesel. A stoichiometric air–fuel mixture is used for both fuels. The simulation runs a single cylinder CI engine of 650 cm3 swept volume with inlet and exhaust valves closed.

The pattern for variation of velocity, an important flow parameter, which affects combustion and subsequently oxides of nitrogen (NOx) formation at different piston locations, is similar for the two fuels. The variations of in-cylinder temperature and NOx formation with crank angles have similar patterns for the fuels, diesel and biodiesel. However, the numerical values of in-cylinder temperature and mass fraction of NOx are different. The volume averaged static peak temperatures are 1,013 K in case of diesel and 1,121 K in case of biodiesel, while the mass averaged mass fractions of NOx are 15 ppm for diesel and 141 ppm for biodiesel. The temperature rise after combustion is more in case of biodiesel, which augments the oxides of nitrogen formation. A new parameter, relative mass fraction of NOx, yields 28% lower value for biodiesel than for diesel.

This work uses a new concept of simulating simple chemical reacting system model to quantify oxides of NOx using single component fuels. Simplification has captured required fluid flow data to analyse NOx emission from CI engine while reducing computational time and expensive experimental tests.

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Analysis and comparison of flow velocities and in-cylinder temperature distributions to quantify oxides of nitrogen in a compression ignition engine using diesel and biodiesel fuels10.1108/JEDT-09-2021-0480Journal of Engineering, Design and Technology2022-02-02© 2022 Emerald Publishing LimitedMunir AhmedMuhammad ShakaibMubashir Ali SiddiquiJournal of Engineering, Design and Technology2222022-02-0210.1108/JEDT-09-2021-0480https://www.emerald.com/insight/content/doi/10.1108/JEDT-09-2021-0480/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2022 Emerald Publishing Limited
Assessment of competencies to promote best project management practices for road infrastructure projects in Ghanahttps://www.emerald.com/insight/content/doi/10.1108/JEDT-07-2021-0378/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestThis research aims to evaluate the status of project management best practices in the road infrastructure sector of Ghana through the inquiry of project managers’ competency. Based on a thorough literature review on competency and project management best practices, a criterion for measuring best practices based on the competencies was identified. Using closed-ended questionnaires as a survey instrument, data was collected and analyzed using a one-sample t-test, Kendall’s concordance coefficient and simple regression. The key finding reveals that in achieving project management best practices for the Ghanaian road infrastructure projects, project managers should straighten and strengthen their capability in terms of skills, personal characteristics and knowledge as ranked. An appropriate blend of these characteristics would be a necessary requirement for project managers. Through this, project managers and project-based road infrastructure organizations will be able to win the confidence of their stakeholders and attain improvements in cost-effectiveness, quality and time management. This study provides project managers in the road infrastructure sector with relevant information on which criteria and variables are critical and are frequently required to manage such projects. This will be helpful for training programs and professional development of project managers in the road infrastructure sector. The study provides a new direction and focuses for project managers in the road infrastructure industry toward best project management practices in developing countries. It also complements existing studies in this area which deepen the understanding of the subject area.Assessment of competencies to promote best project management practices for road infrastructure projects in Ghana
Jones Nyame Aboagye, Ernest Kissi, Alex Acheampong, Edward Badu
Journal of Engineering, Design and Technology, Vol. 22, No. 2, pp.438-455

This research aims to evaluate the status of project management best practices in the road infrastructure sector of Ghana through the inquiry of project managers’ competency.

Based on a thorough literature review on competency and project management best practices, a criterion for measuring best practices based on the competencies was identified. Using closed-ended questionnaires as a survey instrument, data was collected and analyzed using a one-sample t-test, Kendall’s concordance coefficient and simple regression.

The key finding reveals that in achieving project management best practices for the Ghanaian road infrastructure projects, project managers should straighten and strengthen their capability in terms of skills, personal characteristics and knowledge as ranked. An appropriate blend of these characteristics would be a necessary requirement for project managers. Through this, project managers and project-based road infrastructure organizations will be able to win the confidence of their stakeholders and attain improvements in cost-effectiveness, quality and time management.

This study provides project managers in the road infrastructure sector with relevant information on which criteria and variables are critical and are frequently required to manage such projects. This will be helpful for training programs and professional development of project managers in the road infrastructure sector.

The study provides a new direction and focuses for project managers in the road infrastructure industry toward best project management practices in developing countries. It also complements existing studies in this area which deepen the understanding of the subject area.

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Assessment of competencies to promote best project management practices for road infrastructure projects in Ghana10.1108/JEDT-07-2021-0378Journal of Engineering, Design and Technology2022-01-27© 2022 Emerald Publishing LimitedJones Nyame AboagyeErnest KissiAlex AcheampongEdward BaduJournal of Engineering, Design and Technology2222022-01-2710.1108/JEDT-07-2021-0378https://www.emerald.com/insight/content/doi/10.1108/JEDT-07-2021-0378/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2022 Emerald Publishing Limited
Analysing outsourced and insourced public infrastructure projects’ performance in a provincial department of public works: a grounded theory approachhttps://www.emerald.com/insight/content/doi/10.1108/JEDT-11-2021-0640/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestAn increase in outsourcing of consultancy services has been observed during procurement and delivery of public-sector infrastructure projects. However, the incidence of project failure has continued unabated despite this shift by public-sector entities. Also, there appears to be limited literature focussed on seeking to provide the rationale governing the decision to outsource or insource consultancy services by public-sector organisations. The purpose of this study was to appraise the performance of public-sector projects in which consultancy services have been outsourced or insourced. These are the gaps which this study was undertaken to fill. A grounded theory methodology (GTM) research design was adopted based on the nature of evidence sought and gathered from a Provincial Department of Public Works and Infrastructure (PDPWI) in South Africa. Data was obtained from a mixture of semi-structured interviews and project-specific documents spanning a five-year period and was analysed according to the procedures associated with GTM. Accordingly, open coding, axial coding and pattern matching were carried out at several intervals to develop categories and themes. The findings of the study showed the absence of a structured approach within the PDPWI for facilitating decisions pertaining to outsourcing or insourcing consultancy services within construction projects. Furthermore, the study established that both approaches yielded similar results across all performance facets of cost, time and quality. In addition, a detailed insight into the steps required for the successful application of GTM in built environment research has been provided in the study. Limited studies have been undertaken to compare the impact of either outsourced or insourced services on the organisational and project performance. This was the gap to which the study reported in this paper was undertaken to contribute.Analysing outsourced and insourced public infrastructure projects’ performance in a provincial department of public works: a grounded theory approach
Bankole Osita Awuzie, Zwelinzima P. Mcwari, Progress Shingai Chigangacha, Clinton Ohis Aigbavboa, Theo C. Haupt, Lovelin Obi
Journal of Engineering, Design and Technology, Vol. 22, No. 2, pp.456-479

An increase in outsourcing of consultancy services has been observed during procurement and delivery of public-sector infrastructure projects. However, the incidence of project failure has continued unabated despite this shift by public-sector entities. Also, there appears to be limited literature focussed on seeking to provide the rationale governing the decision to outsource or insource consultancy services by public-sector organisations. The purpose of this study was to appraise the performance of public-sector projects in which consultancy services have been outsourced or insourced. These are the gaps which this study was undertaken to fill.

A grounded theory methodology (GTM) research design was adopted based on the nature of evidence sought and gathered from a Provincial Department of Public Works and Infrastructure (PDPWI) in South Africa. Data was obtained from a mixture of semi-structured interviews and project-specific documents spanning a five-year period and was analysed according to the procedures associated with GTM. Accordingly, open coding, axial coding and pattern matching were carried out at several intervals to develop categories and themes.

The findings of the study showed the absence of a structured approach within the PDPWI for facilitating decisions pertaining to outsourcing or insourcing consultancy services within construction projects. Furthermore, the study established that both approaches yielded similar results across all performance facets of cost, time and quality. In addition, a detailed insight into the steps required for the successful application of GTM in built environment research has been provided in the study.

Limited studies have been undertaken to compare the impact of either outsourced or insourced services on the organisational and project performance. This was the gap to which the study reported in this paper was undertaken to contribute.

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Analysing outsourced and insourced public infrastructure projects’ performance in a provincial department of public works: a grounded theory approach10.1108/JEDT-11-2021-0640Journal of Engineering, Design and Technology2022-02-07© 2022 Emerald Publishing LimitedBankole Osita AwuzieZwelinzima P. McwariProgress Shingai ChigangachaClinton Ohis AigbavboaTheo C. HauptLovelin ObiJournal of Engineering, Design and Technology2222022-02-0710.1108/JEDT-11-2021-0640https://www.emerald.com/insight/content/doi/10.1108/JEDT-11-2021-0640/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2022 Emerald Publishing Limited
An enhanced framework for reliably managing private participation in infrastructure ICT projects in developing countrieshttps://www.emerald.com/insight/content/doi/10.1108/JEDT-10-2021-0556/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestThe purpose of this study is to propose an improved framework for managing Private Participation in Infrastructure ICT (PPI-ICT) projects in the context of developing countries as the requirements to manage them are different in several aspects. The framework has been proposed based on an exhaustive literature review and statistical analysis of the PPI-ICT projects’ data set using logistic regression, F-test and student’s t-test. The proposed framework was also applied to the PPI-ICT projects. The framework is an extension to NTCP (novelty, technology, complexity and pace) approach by including extrinsic factors such as income of the country, climate risk, religious diversity, political stability, regularity quality and control of corruption. The proposed framework was used to analyze project characteristics and their external conditions in the context of developing countries. Based on the analyses, the authors have presented a detailed set of recommendations for project managers, practitioners and governments to improve the success rate of these projects. The major contribution of this study is the framework, which encompasses the NTCP model as well as extrinsic characteristics of PPI-ICT projects. The proposed framework is meant to assist the project managers to comprehend the project characteristics and its external environment to identify an adequate approach for managing projects successfully.An enhanced framework for reliably managing private participation in infrastructure ICT projects in developing countries
Muhammad Ayat, Sheheryar Mohsin Qureshi, Changwook Kang
Journal of Engineering, Design and Technology, Vol. 22, No. 2, pp.480-500

The purpose of this study is to propose an improved framework for managing Private Participation in Infrastructure ICT (PPI-ICT) projects in the context of developing countries as the requirements to manage them are different in several aspects.

The framework has been proposed based on an exhaustive literature review and statistical analysis of the PPI-ICT projects’ data set using logistic regression, F-test and student’s t-test. The proposed framework was also applied to the PPI-ICT projects.

The framework is an extension to NTCP (novelty, technology, complexity and pace) approach by including extrinsic factors such as income of the country, climate risk, religious diversity, political stability, regularity quality and control of corruption. The proposed framework was used to analyze project characteristics and their external conditions in the context of developing countries. Based on the analyses, the authors have presented a detailed set of recommendations for project managers, practitioners and governments to improve the success rate of these projects.

The major contribution of this study is the framework, which encompasses the NTCP model as well as extrinsic characteristics of PPI-ICT projects. The proposed framework is meant to assist the project managers to comprehend the project characteristics and its external environment to identify an adequate approach for managing projects successfully.

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An enhanced framework for reliably managing private participation in infrastructure ICT projects in developing countries10.1108/JEDT-10-2021-0556Journal of Engineering, Design and Technology2022-01-24© 2022 Emerald Publishing LimitedMuhammad AyatSheheryar Mohsin QureshiChangwook KangJournal of Engineering, Design and Technology2222022-01-2410.1108/JEDT-10-2021-0556https://www.emerald.com/insight/content/doi/10.1108/JEDT-10-2021-0556/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2022 Emerald Publishing Limited
A multi-group assessment of safety culture among engineering students in the United Arab Emirateshttps://www.emerald.com/insight/content/doi/10.1108/JEDT-11-2021-0622/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestThe purpose of this paper is to identify the factor structure of safety culture construct among engineering students at university context and to examine the measurement invariance of this instrument across different socio-demographic groups in a sample of engineering students in the United Arab Emirates (UAE). An exploratory online questionnaire was completed by 770 undergraduate and postgraduate engineering students across the UAE. Data were analyzed using a diversified multi-group and a robust and sophisticated cross-validation testing strategy. Confirmatory factor analysis (CFA) was used to test factor structures identified in previous studies. Multi-group invariance testing was conducted to determine the extent to which factor structure is comparable across groups (i.e. gender, educational and experiential background). Three-factor model was preferred for its parsimony. The results showed that the level of safety awareness and attitude is relatively satisfactory, whereas safety behaviour is inadequate. No significant difference was showed in multi-group invariance between demographic groups. This research is a cross-sectional study and limited to the views of engineering students (informal group). The study would benefit from both informal and formal groups in assessing safety culture at university for a robust empirical evidence. The research highlights relevant implications for policy and program development, by pointing to the need to promote safety culture and mitigate safety-related accidents among engineering students. This paper offers insight into benefit of understanding the level of safety culture among engineering students and extend knowledge of informal group involvement in safety-related accidents at university level.A multi-group assessment of safety culture among engineering students in the United Arab Emirates
Khalizani Khalid, Khalisanni Khalid, Ross Davidson
Journal of Engineering, Design and Technology, Vol. 22, No. 2, pp.501-515

The purpose of this paper is to identify the factor structure of safety culture construct among engineering students at university context and to examine the measurement invariance of this instrument across different socio-demographic groups in a sample of engineering students in the United Arab Emirates (UAE).

An exploratory online questionnaire was completed by 770 undergraduate and postgraduate engineering students across the UAE. Data were analyzed using a diversified multi-group and a robust and sophisticated cross-validation testing strategy. Confirmatory factor analysis (CFA) was used to test factor structures identified in previous studies. Multi-group invariance testing was conducted to determine the extent to which factor structure is comparable across groups (i.e. gender, educational and experiential background).

Three-factor model was preferred for its parsimony. The results showed that the level of safety awareness and attitude is relatively satisfactory, whereas safety behaviour is inadequate. No significant difference was showed in multi-group invariance between demographic groups.

This research is a cross-sectional study and limited to the views of engineering students (informal group). The study would benefit from both informal and formal groups in assessing safety culture at university for a robust empirical evidence. The research highlights relevant implications for policy and program development, by pointing to the need to promote safety culture and mitigate safety-related accidents among engineering students.

This paper offers insight into benefit of understanding the level of safety culture among engineering students and extend knowledge of informal group involvement in safety-related accidents at university level.

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A multi-group assessment of safety culture among engineering students in the United Arab Emirates10.1108/JEDT-11-2021-0622Journal of Engineering, Design and Technology2022-01-27© 2022 Emerald Publishing LimitedKhalizani KhalidKhalisanni KhalidRoss DavidsonJournal of Engineering, Design and Technology2222022-01-2710.1108/JEDT-11-2021-0622https://www.emerald.com/insight/content/doi/10.1108/JEDT-11-2021-0622/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2022 Emerald Publishing Limited
Low velocity impact study of a sandwich beams using Ritz method and finite element modellinghttps://www.emerald.com/insight/content/doi/10.1108/JEDT-10-2021-0584/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestThe purpose of this paper is to present an applied method to design the low-speed contact between a mass and surface of a beam using an analytical solution based on the first-order shear deformation beam theory. Also, a simulation of impact process is carried out by ABAQUS finite element (FE) code. In theoretical formulation, first strains and stresses are obtained, then kinetic and potential energies are written, and using a combination of Ritz and Lagrange methods, a set of system of motion equations in the form of mass, stiffness and force matrices is obtained. Finally, the motion equations are solved using Runge–Kutta fourth order method. The von Mises stress contours at the impact point and contact force from the ABAQUS simulation are illustrated and it is revealed that the theoretical solution is in good agreement with the FE code. The effect of changes in projectile speed, projectile diameter and projectile mass on the results is carefully examined with particular attention to evaluate histories of the impact force and beam recess. One of the important results is that changes in projectile speed have a greater effect on the results than changes in projectile diameter, and also changes in projectile mass have the least effect. This paper presents a combination of methods of energy, Ritz and Lagrange and also FE code to simulate the problem of sandwich beams under low velocity impact.Low velocity impact study of a sandwich beams using Ritz method and finite element modelling
Ali Mohammed Ali, Manar Hamid Jasim, Bashar Dheyaa Hussein Al-Kasob
Journal of Engineering, Design and Technology, Vol. 22, No. 2, pp.516-531

The purpose of this paper is to present an applied method to design the low-speed contact between a mass and surface of a beam using an analytical solution based on the first-order shear deformation beam theory. Also, a simulation of impact process is carried out by ABAQUS finite element (FE) code.

In theoretical formulation, first strains and stresses are obtained, then kinetic and potential energies are written, and using a combination of Ritz and Lagrange methods, a set of system of motion equations in the form of mass, stiffness and force matrices is obtained. Finally, the motion equations are solved using Runge–Kutta fourth order method.

The von Mises stress contours at the impact point and contact force from the ABAQUS simulation are illustrated and it is revealed that the theoretical solution is in good agreement with the FE code. The effect of changes in projectile speed, projectile diameter and projectile mass on the results is carefully examined with particular attention to evaluate histories of the impact force and beam recess. One of the important results is that changes in projectile speed have a greater effect on the results than changes in projectile diameter, and also changes in projectile mass have the least effect.

This paper presents a combination of methods of energy, Ritz and Lagrange and also FE code to simulate the problem of sandwich beams under low velocity impact.

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Low velocity impact study of a sandwich beams using Ritz method and finite element modelling10.1108/JEDT-10-2021-0584Journal of Engineering, Design and Technology2022-02-02© 2022 Emerald Publishing LimitedAli Mohammed AliManar Hamid JasimBashar Dheyaa Hussein Al-KasobJournal of Engineering, Design and Technology2222022-02-0210.1108/JEDT-10-2021-0584https://www.emerald.com/insight/content/doi/10.1108/JEDT-10-2021-0584/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2022 Emerald Publishing Limited
Machine-Learning-Algorithm to predict the High-Performance concrete compressive strength using multiple datahttps://www.emerald.com/insight/content/doi/10.1108/JEDT-11-2021-0637/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestThe compressive strength of concrete depends on many interdependent parameters; its exact prediction is not that simple because of complex processes involved in strength development. This study aims to predict the compressive strength of normal concrete and high-performance concrete using four datasets. In this paper, five established individual Machine Learning (ML) regression models have been compared: Decision Regression Tree, Random Forest Regression, Lasso Regression, Ridge Regression and Multiple-Linear regression. Four datasets were studied, two of which are previous research datasets, and two datasets are from the sophisticated lab using five established individual ML regression models. The five statistical indicators like coefficient of determination (R2), mean absolute error, root mean squared error, Nash–Sutcliffe efficiency and mean absolute percentage error have been used to compare the performance of the models. The models are further compared using statistical indicators with previous studies. Lastly, to understand the variable effect of the predictor, the sensitivity and parametric analysis were carried out to find the performance of the variable. The findings of this paper will allow readers to understand the factors involved in identifying the machine learning models and concrete datasets. In so doing, we hope that this research advances the toolset needed to predict compressive strength.Machine-Learning-Algorithm to predict the High-Performance concrete compressive strength using multiple data
Muralidhar Vaman Kamath, Shrilaxmi Prashanth, Mithesh Kumar, Adithya Tantri
Journal of Engineering, Design and Technology, Vol. 22, No. 2, pp.532-560

The compressive strength of concrete depends on many interdependent parameters; its exact prediction is not that simple because of complex processes involved in strength development. This study aims to predict the compressive strength of normal concrete and high-performance concrete using four datasets.

In this paper, five established individual Machine Learning (ML) regression models have been compared: Decision Regression Tree, Random Forest Regression, Lasso Regression, Ridge Regression and Multiple-Linear regression. Four datasets were studied, two of which are previous research datasets, and two datasets are from the sophisticated lab using five established individual ML regression models.

The five statistical indicators like coefficient of determination (R2), mean absolute error, root mean squared error, Nash–Sutcliffe efficiency and mean absolute percentage error have been used to compare the performance of the models. The models are further compared using statistical indicators with previous studies. Lastly, to understand the variable effect of the predictor, the sensitivity and parametric analysis were carried out to find the performance of the variable.

The findings of this paper will allow readers to understand the factors involved in identifying the machine learning models and concrete datasets. In so doing, we hope that this research advances the toolset needed to predict compressive strength.

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Machine-Learning-Algorithm to predict the High-Performance concrete compressive strength using multiple data10.1108/JEDT-11-2021-0637Journal of Engineering, Design and Technology2022-02-07© 2022 Emerald Publishing LimitedMuralidhar Vaman KamathShrilaxmi PrashanthMithesh KumarAdithya TantriJournal of Engineering, Design and Technology2222022-02-0710.1108/JEDT-11-2021-0637https://www.emerald.com/insight/content/doi/10.1108/JEDT-11-2021-0637/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2022 Emerald Publishing Limited
Generic skills of future built environment practitioners in South Africa: unexplored mechanism via students’ perceptionhttps://www.emerald.com/insight/content/doi/10.1108/JEDT-10-2021-0571/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestResearchers and policymakers have given attention to generic skills development in higher institutions. One of the intentions is to broaden graduate employability with generic skills. In South Africa, there is a paucity of research concerning future built environment practitioners’ (FBEP) generic skills development from the students’ perspective. Thus, this paper aims to investigate South Africa’s FBEP generic skills and suggest feasible solutions to improve FBEP generic skills from the students’ perception. The researchers collated the views of FBEP via a phenomenology type of qualitative research design. It covered selected South African public universities and investigated the discourses that underpin “perceived hindrance” in developing generic skills for FBEP. Selected 30 FBEP were engaged in the virtual interviews across three public universities. Data saturation was achieved. Three themes emerged and were analysed through a thematic analysis. Findings show that FBEP generic skills development will enhance integrated productivity and higher value for money in construction project delivery. But developing these skills demands a holistic approach. Findings have raised concern with the perceived hindrances facing FBEP in developing generic skills. Findings suggest the need to revisit and revamp the curricula to develop these skills and strengthen policies that will “nip” possible hindrances. This study was limited to South Africa’s FBEP generic skills from students’ perception. In line with the limited resources, three public universities were covered from the selected provinces in South Africa. Future research with a more diverse sample is needed to ensure a better representative and generalisation of findings. Findings show that apart from academic knowledge system thinking skills, civic responsibility skills and critical thinking skills are germane for intending construction industry professionals. Others are integrated teamwork skills, good attitude and communication skills, entrepreneurship skills and resources management skills. Findings from this paper may stir up the education sector’s stakeholders to revamp the curricula in enhancing these skills among students from the basic to higher institutions. The outcome will improve productivity in the construction industry. Although few scholars have discussed generic skills in the built environment, there are limited studies from the students’ context in developing countries, a South Africa case study, a gap this research aims to fill. Also, it proffers ways to mitigate perceived hindrances facing FBEP in developing generic skills.Generic skills of future built environment practitioners in South Africa: unexplored mechanism via students’ perception
Andrew Ebekozien, Clinton Ohis Aigbavboa, John Aliu, Wellington Didibhuku Thwala
Journal of Engineering, Design and Technology, Vol. 22, No. 2, pp.561-577

Researchers and policymakers have given attention to generic skills development in higher institutions. One of the intentions is to broaden graduate employability with generic skills. In South Africa, there is a paucity of research concerning future built environment practitioners’ (FBEP) generic skills development from the students’ perspective. Thus, this paper aims to investigate South Africa’s FBEP generic skills and suggest feasible solutions to improve FBEP generic skills from the students’ perception.

The researchers collated the views of FBEP via a phenomenology type of qualitative research design. It covered selected South African public universities and investigated the discourses that underpin “perceived hindrance” in developing generic skills for FBEP. Selected 30 FBEP were engaged in the virtual interviews across three public universities. Data saturation was achieved. Three themes emerged and were analysed through a thematic analysis.

Findings show that FBEP generic skills development will enhance integrated productivity and higher value for money in construction project delivery. But developing these skills demands a holistic approach. Findings have raised concern with the perceived hindrances facing FBEP in developing generic skills. Findings suggest the need to revisit and revamp the curricula to develop these skills and strengthen policies that will “nip” possible hindrances.

This study was limited to South Africa’s FBEP generic skills from students’ perception. In line with the limited resources, three public universities were covered from the selected provinces in South Africa. Future research with a more diverse sample is needed to ensure a better representative and generalisation of findings.

Findings show that apart from academic knowledge system thinking skills, civic responsibility skills and critical thinking skills are germane for intending construction industry professionals. Others are integrated teamwork skills, good attitude and communication skills, entrepreneurship skills and resources management skills. Findings from this paper may stir up the education sector’s stakeholders to revamp the curricula in enhancing these skills among students from the basic to higher institutions. The outcome will improve productivity in the construction industry.

Although few scholars have discussed generic skills in the built environment, there are limited studies from the students’ context in developing countries, a South Africa case study, a gap this research aims to fill. Also, it proffers ways to mitigate perceived hindrances facing FBEP in developing generic skills.

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Generic skills of future built environment practitioners in South Africa: unexplored mechanism via students’ perception10.1108/JEDT-10-2021-0571Journal of Engineering, Design and Technology2022-01-27© 2022 Emerald Publishing LimitedAndrew EbekozienClinton Ohis AigbavboaJohn AliuWellington Didibhuku ThwalaJournal of Engineering, Design and Technology2222022-01-2710.1108/JEDT-10-2021-0571https://www.emerald.com/insight/content/doi/10.1108/JEDT-10-2021-0571/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2022 Emerald Publishing Limited
Early supplier involvement framework for reducing construction waste during the design processhttps://www.emerald.com/insight/content/doi/10.1108/JEDT-10-2021-0566/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestThe purpose of this paper is to develop a framework to facilitate early supplier involvement (ESI) as an approach for reducing construction waste (CW) generated during the design process. A research methodology consists of literature review, case studies and survey questionnaire was designed to achieve the abovementioned aim. First, the literature review was used to investigate CW, CW generated during the design process, the design process and ESI. Second, two construction projects were analysed to investigate the role of ESI towards reducing CW generated during the design waste. Third, a survey questionnaire was carried out with a representative sample of architectural design firms (ADFs) in Egypt to examine their perception and application of ESI towards reducing CW generated during the design process. Based on the results of the above, the research developed a framework to facilitate ESI during the design process to reduce CW. Through literature review, the research highlighted the causes of CW generated during the design process and identified the benefits and challenges that encounter ESI in ADFs. Results of data analysis showed that “last-minute changes due to client requirements” was ranked the highest challenges of ESI in ADFs in Egypt followed by “lack of design experience”. Moreover, “providing technical information about materials and equipment and their capabilities” was ranked by respondents as the highest contributions of suppliers during the design process which leads to waste reduction followed by “better estimation of materials and costs”. Finally, respondents stated that “resistance of ADFs to include suppliers in the design phase” was ranked the highest challenge of ESI in the design process followed by “no clear guidelines or policies that organise ESI”. Because of the conceptual nature of the proposed framework, it has to be tested and validated to ensure its capability to overcome the challenges of ESI as an approach for reducing CW generated during the design process. This research presents a practical solution to the problem of CW generated during the design process through ESI. The research discussed the causes of CW originated from the design process and the benefits and challenges of ESI in ADFs. It investigated the perception and application of ESI in ADFs in Egypt. The proposed framework which was designed to facilitate the integration of suppliers in the early stages of the project life cycle represents a synthesis that is novel and creative in thought and adds value to the knowledge in a manner that has not previously occurred.Early supplier involvement framework for reducing construction waste during the design process
Ayman Ahmed Ezzat Othman, Yomna Abdelghany El-Saeidy
Journal of Engineering, Design and Technology, Vol. 22, No. 2, pp.578-597

The purpose of this paper is to develop a framework to facilitate early supplier involvement (ESI) as an approach for reducing construction waste (CW) generated during the design process.

A research methodology consists of literature review, case studies and survey questionnaire was designed to achieve the abovementioned aim. First, the literature review was used to investigate CW, CW generated during the design process, the design process and ESI. Second, two construction projects were analysed to investigate the role of ESI towards reducing CW generated during the design waste. Third, a survey questionnaire was carried out with a representative sample of architectural design firms (ADFs) in Egypt to examine their perception and application of ESI towards reducing CW generated during the design process. Based on the results of the above, the research developed a framework to facilitate ESI during the design process to reduce CW.

Through literature review, the research highlighted the causes of CW generated during the design process and identified the benefits and challenges that encounter ESI in ADFs. Results of data analysis showed that “last-minute changes due to client requirements” was ranked the highest challenges of ESI in ADFs in Egypt followed by “lack of design experience”. Moreover, “providing technical information about materials and equipment and their capabilities” was ranked by respondents as the highest contributions of suppliers during the design process which leads to waste reduction followed by “better estimation of materials and costs”. Finally, respondents stated that “resistance of ADFs to include suppliers in the design phase” was ranked the highest challenge of ESI in the design process followed by “no clear guidelines or policies that organise ESI”.

Because of the conceptual nature of the proposed framework, it has to be tested and validated to ensure its capability to overcome the challenges of ESI as an approach for reducing CW generated during the design process.

This research presents a practical solution to the problem of CW generated during the design process through ESI.

The research discussed the causes of CW originated from the design process and the benefits and challenges of ESI in ADFs. It investigated the perception and application of ESI in ADFs in Egypt. The proposed framework which was designed to facilitate the integration of suppliers in the early stages of the project life cycle represents a synthesis that is novel and creative in thought and adds value to the knowledge in a manner that has not previously occurred.

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Early supplier involvement framework for reducing construction waste during the design process10.1108/JEDT-10-2021-0566Journal of Engineering, Design and Technology2022-02-01© 2022 Emerald Publishing LimitedAyman Ahmed Ezzat OthmanYomna Abdelghany El-SaeidyJournal of Engineering, Design and Technology2222022-02-0110.1108/JEDT-10-2021-0566https://www.emerald.com/insight/content/doi/10.1108/JEDT-10-2021-0566/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2022 Emerald Publishing Limited
Stability characteristics and experiment of hydraulic drive four-wheel chassishttps://www.emerald.com/insight/content/doi/10.1108/JEDT-10-2021-0549/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestThis study aims to improve the maneuverability and stability of four-wheel chassis in a small paddy field; a front axle swing steering four-wheel chassis with optimal steering is designed. When turning, the front inner wheel stops and the rear inner wheel is in the following state. The hydraulic drive system of the walking wheel adopts a driving mode in which two front-wheel motors are connected in series and two rear wheel motors in parallel. The chassis uses a combination of a gasoline engine with a water cooling system, a CVT continuously variable transmission and a hydraulic drive system to increase the control capability. The front axle rotary chassis adopts a step-less variable speed engine and a hydraulic control system to solve the hydraulic stability of the chassis in uphill and downhill conditions so as to effectively control the over-speed of the wheel-side drive motors. Through the quadratic orthogonal rotation combination design test, the mathematical models of uphill and downhill front-wheel pressures and test factors are established. The results show that the chassis stability is optimal when the back pressure is 0.5 MPa, and the rotating slope is 4°. The uphill and downhill pressures of the front wheels are 2.38 MPa and 1.5 MPa, respectively. The influence of external changes on the pressure of hydraulic motors is studied through experiments, which lays the foundation for further research.Stability characteristics and experiment of hydraulic drive four-wheel chassis
Ying Lv, Jinlong Feng, Guangbin Wang, Hua Li
Journal of Engineering, Design and Technology, Vol. 22, No. 2, pp.598-612

This study aims to improve the maneuverability and stability of four-wheel chassis in a small paddy field; a front axle swing steering four-wheel chassis with optimal steering is designed.

When turning, the front inner wheel stops and the rear inner wheel is in the following state. The hydraulic drive system of the walking wheel adopts a driving mode in which two front-wheel motors are connected in series and two rear wheel motors in parallel. The chassis uses a combination of a gasoline engine with a water cooling system, a CVT continuously variable transmission and a hydraulic drive system to increase the control capability. The front axle rotary chassis adopts a step-less variable speed engine and a hydraulic control system to solve the hydraulic stability of the chassis in uphill and downhill conditions so as to effectively control the over-speed of the wheel-side drive motors. Through the quadratic orthogonal rotation combination design test, the mathematical models of uphill and downhill front-wheel pressures and test factors are established.

The results show that the chassis stability is optimal when the back pressure is 0.5 MPa, and the rotating slope is 4°. The uphill and downhill pressures of the front wheels are 2.38 MPa and 1.5 MPa, respectively.

The influence of external changes on the pressure of hydraulic motors is studied through experiments, which lays the foundation for further research.

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Stability characteristics and experiment of hydraulic drive four-wheel chassis10.1108/JEDT-10-2021-0549Journal of Engineering, Design and Technology2022-03-11© 2022 Emerald Publishing LimitedYing LvJinlong FengGuangbin WangHua LiJournal of Engineering, Design and Technology2222022-03-1110.1108/JEDT-10-2021-0549https://www.emerald.com/insight/content/doi/10.1108/JEDT-10-2021-0549/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2022 Emerald Publishing Limited
Shaping circular economy in the built environment in Africa. A bibliometric analysishttps://www.emerald.com/insight/content/doi/10.1108/JEDT-03-2022-0175/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestThis paper aims to explore the intellectual structure shaping the circular economy (CE) discourse within the built environment in Africa. The study adopted a bibliometric analysis approach to explore the intellectual structure of CE in the built environment in Africa. The authors collected 31 papers published between 2005 and 2021 from the Scopus database and used VOSviewer for data analysis. The findings show that there are six clusters shaping the intellectual structure: demolition, material recovery and reuse; waste as a resource; cellulose and agro-based materials; resilience and low-carbon footprint; recycling materials; and the fourth industrial revolution. The two most cited scholars had three publications each, while the top journal was Resources, Conservation and Recycling. The dominant concepts included CE, sustainability, alternative materials, waste management, lifecycle, demolition and climate change. The study concludes that there is low CE research output in Africa, which implies that the concept is either novel or facing resistance. The data were drawn from one database, Scopus; hence, adoption of alternative databases such as Web of Science, Google Scholar and Dimensions could potentially have yielded a higher number of articles for analysis which potentially would result in different conclusions on the subject understudy. This study made a significant contribution by articulating the CE intellectual structure in the built environment, identified prominent scholars and academic platforms responsible for promoting circularity in Africa.Shaping circular economy in the built environment in Africa. A bibliometric analysis
Jacob Mhlanga, Theodore C. Haupt, Claudia Loggia
Journal of Engineering, Design and Technology, Vol. 22, No. 2, pp.613-642

This paper aims to explore the intellectual structure shaping the circular economy (CE) discourse within the built environment in Africa.

The study adopted a bibliometric analysis approach to explore the intellectual structure of CE in the built environment in Africa. The authors collected 31 papers published between 2005 and 2021 from the Scopus database and used VOSviewer for data analysis.

The findings show that there are six clusters shaping the intellectual structure: demolition, material recovery and reuse; waste as a resource; cellulose and agro-based materials; resilience and low-carbon footprint; recycling materials; and the fourth industrial revolution. The two most cited scholars had three publications each, while the top journal was Resources, Conservation and Recycling. The dominant concepts included CE, sustainability, alternative materials, waste management, lifecycle, demolition and climate change. The study concludes that there is low CE research output in Africa, which implies that the concept is either novel or facing resistance.

The data were drawn from one database, Scopus; hence, adoption of alternative databases such as Web of Science, Google Scholar and Dimensions could potentially have yielded a higher number of articles for analysis which potentially would result in different conclusions on the subject understudy.

This study made a significant contribution by articulating the CE intellectual structure in the built environment, identified prominent scholars and academic platforms responsible for promoting circularity in Africa.

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Shaping circular economy in the built environment in Africa. A bibliometric analysis10.1108/JEDT-03-2022-0175Journal of Engineering, Design and Technology2022-11-08© 2022 Jacob Mhlanga, Theodore C. Haupt and Claudia Loggia.Jacob MhlangaTheodore C. HauptClaudia LoggiaJournal of Engineering, Design and Technology2222022-11-0810.1108/JEDT-03-2022-0175https://www.emerald.com/insight/content/doi/10.1108/JEDT-03-2022-0175/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2022 Jacob Mhlanga, Theodore C. Haupt and Claudia Loggia.http://creativecommons.org/licences/by/4.0/legalcode
Optimization design of titanium alloy connecting rod based on structural topology optimizationhttps://www.emerald.com/insight/content/doi/10.1108/JEDT-01-2021-0045/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestThe purpose of this paper is to realize the lightweight of connecting rod and meet the requirements of low energy consumption and vibration. Based on the structural design of the original connecting rod, the finite element analysis was conducted to reduce the weight and increase the natural frequencies, so as to reduce materials consumption and improve the energy efficiency of internal combustion engine. The finite element analysis, structural optimization design and topology optimization of the connecting rod are applied. Efficient hybrid method is deployed: static and modal analysis; and structure re-design of the connecting rod based on topology optimization. After the optimization of the connecting rod, the weight is reduced from 1.7907 to 1.4875 kg, with a reduction of 16.93%. The maximum equivalent stress of the optimized connecting rod is 183.97 MPa and that of the original structure is 217.18 MPa, with the reduction of 15.62%. The first, second and third natural frequencies of the optimized connecting rod are increased by 8.89%, 8.85% and 11.09%, respectively. Through the finite element analysis and based on the lightweight, the maximum equivalent stress is reduced and the low-order natural frequency is increased. This paper presents an optimization method on the connecting rod structure. Based on the statics and modal analysis of the connecting rod and combined with the topology optimization, the size of the connecting rod is improved, and the static and dynamic characteristics of the optimized connecting rod are improved.Optimization design of titanium alloy connecting rod based on structural topology optimization
Bin Zheng, Yi Cai, Kelun Tang
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

The purpose of this paper is to realize the lightweight of connecting rod and meet the requirements of low energy consumption and vibration. Based on the structural design of the original connecting rod, the finite element analysis was conducted to reduce the weight and increase the natural frequencies, so as to reduce materials consumption and improve the energy efficiency of internal combustion engine.

The finite element analysis, structural optimization design and topology optimization of the connecting rod are applied. Efficient hybrid method is deployed: static and modal analysis; and structure re-design of the connecting rod based on topology optimization.

After the optimization of the connecting rod, the weight is reduced from 1.7907 to 1.4875 kg, with a reduction of 16.93%. The maximum equivalent stress of the optimized connecting rod is 183.97 MPa and that of the original structure is 217.18 MPa, with the reduction of 15.62%. The first, second and third natural frequencies of the optimized connecting rod are increased by 8.89%, 8.85% and 11.09%, respectively. Through the finite element analysis and based on the lightweight, the maximum equivalent stress is reduced and the low-order natural frequency is increased.

This paper presents an optimization method on the connecting rod structure. Based on the statics and modal analysis of the connecting rod and combined with the topology optimization, the size of the connecting rod is improved, and the static and dynamic characteristics of the optimized connecting rod are improved.

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Optimization design of titanium alloy connecting rod based on structural topology optimization10.1108/JEDT-01-2021-0045Journal of Engineering, Design and Technology2021-08-11© 2021 Emerald Publishing LimitedBin ZhengYi CaiKelun TangJournal of Engineering, Design and Technologyahead-of-printahead-of-print2021-08-1110.1108/JEDT-01-2021-0045https://www.emerald.com/insight/content/doi/10.1108/JEDT-01-2021-0045/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2021 Emerald Publishing Limited
The challenges of implementing evidence-based strategies to inform building and urban design decisions: a view from current practicehttps://www.emerald.com/insight/content/doi/10.1108/JEDT-01-2022-0003/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestThis study aims to raise awareness of the key challenges, opportunities and priorities for evidence-based strategies’ application to inform building and urban design decisions. This study uses deductive qualitative content and manifest analysis, using semi-structured interviews undertaken with building and urban design professionals who represent a UK-based organisation. The challenges associated with the practical implementation of frameworks, potential application areas and perceived areas of concern have been identified. These not only include the need to practically test their use, but also to identify the most appropriate forums for their use. Participant responses indicate the need to further develop engagement strategies for their practical implementation, clearly communicating the benefits and efficiencies to all stakeholders. Implications/ limitations of this study come with the fact that some of the respondents may possess inadequate professional experience in properly evaluating all the questions. Additionally, the information gathered is restricted to the UK geographical context, as well as coming from one organisation, because of data accessibility. The findings of the study can be adopted by designers in the strategic definition level to overcome the key challenges associated with the use of evidence-based strategies, enhancing their decision-making processes. As a theoretical contribution to knowledge, this study enhances the body of knowledge by identifying the challenges associated with the practical implementation of evidence-based strategies to inform building and urban design decisions. In practice, the findings aid urban planners, designers and academics in embedding and adopting strategies that enhance decision-making processes.The challenges of implementing evidence-based strategies to inform building and urban design decisions: a view from current practice
Avgousta Stanitsa, Stephen H. Hallett, Simon Jude
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

This study aims to raise awareness of the key challenges, opportunities and priorities for evidence-based strategies’ application to inform building and urban design decisions.

This study uses deductive qualitative content and manifest analysis, using semi-structured interviews undertaken with building and urban design professionals who represent a UK-based organisation.

The challenges associated with the practical implementation of frameworks, potential application areas and perceived areas of concern have been identified. These not only include the need to practically test their use, but also to identify the most appropriate forums for their use. Participant responses indicate the need to further develop engagement strategies for their practical implementation, clearly communicating the benefits and efficiencies to all stakeholders.

Implications/ limitations of this study come with the fact that some of the respondents may possess inadequate professional experience in properly evaluating all the questions. Additionally, the information gathered is restricted to the UK geographical context, as well as coming from one organisation, because of data accessibility.

The findings of the study can be adopted by designers in the strategic definition level to overcome the key challenges associated with the use of evidence-based strategies, enhancing their decision-making processes.

As a theoretical contribution to knowledge, this study enhances the body of knowledge by identifying the challenges associated with the practical implementation of evidence-based strategies to inform building and urban design decisions. In practice, the findings aid urban planners, designers and academics in embedding and adopting strategies that enhance decision-making processes.

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The challenges of implementing evidence-based strategies to inform building and urban design decisions: a view from current practice10.1108/JEDT-01-2022-0003Journal of Engineering, Design and Technology2022-08-15© 2022 Emerald Publishing LimitedAvgousta StanitsaStephen H. HallettSimon JudeJournal of Engineering, Design and Technologyahead-of-printahead-of-print2022-08-1510.1108/JEDT-01-2022-0003https://www.emerald.com/insight/content/doi/10.1108/JEDT-01-2022-0003/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2022 Emerald Publishing Limited
Assessing the factors of transactional leadership style for construction projects: a case of Nigerian construction industryhttps://www.emerald.com/insight/content/doi/10.1108/JEDT-01-2022-0012/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestThe role of construction industry in harnessing human and material resources of a nation cannot be overemphasised; hence, the emergence of the requirement of leadership. This study aims to assess the usage of factors of transactional leadership style (TSLS) by the project managers (PMs) in the Nigeria construction industry. A survey research design approach with questionnaire as an instrument of gathering data was adopted. Out of 1,233 questionnaires distributed, data from 975 received with acceptable feedback were analysed using both descriptive and inferential statistics. This study revealed the following factors under active management by exception as the TSLS factors often employed by PMs in Nigeria. These factors are the three frequently used factors: they are: “always give clear and final instructions to be implemented in the project”; “always observed the progress of the project, assessed risk and took precaution to avoid mistakes in the project”; and “always closely monitor performance for errors needing correction”. This study concludes that it is imperative for PMs in the study area to adopt and incorporate these factors to ensure continuous successful delivery of construction projects. Therefore, it is hoped that the findings of this research will help the construction industry managers to address the age-long but unrecognised leadership problem confronting the sector, thereby boosting project delivery. The findings establish the appropriateness or otherwise of adoption of factors of transactional leadership, either in part or a whole.Assessing the factors of transactional leadership style for construction projects: a case of Nigerian construction industry
Femi-favour Olabode Olasunkanmi, Dubem Isaac Ikediashi, Ikenna Reginald Ajiero
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

The role of construction industry in harnessing human and material resources of a nation cannot be overemphasised; hence, the emergence of the requirement of leadership. This study aims to assess the usage of factors of transactional leadership style (TSLS) by the project managers (PMs) in the Nigeria construction industry.

A survey research design approach with questionnaire as an instrument of gathering data was adopted. Out of 1,233 questionnaires distributed, data from 975 received with acceptable feedback were analysed using both descriptive and inferential statistics.

This study revealed the following factors under active management by exception as the TSLS factors often employed by PMs in Nigeria. These factors are the three frequently used factors: they are: “always give clear and final instructions to be implemented in the project”; “always observed the progress of the project, assessed risk and took precaution to avoid mistakes in the project”; and “always closely monitor performance for errors needing correction”. This study concludes that it is imperative for PMs in the study area to adopt and incorporate these factors to ensure continuous successful delivery of construction projects.

Therefore, it is hoped that the findings of this research will help the construction industry managers to address the age-long but unrecognised leadership problem confronting the sector, thereby boosting project delivery.

The findings establish the appropriateness or otherwise of adoption of factors of transactional leadership, either in part or a whole.

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Assessing the factors of transactional leadership style for construction projects: a case of Nigerian construction industry10.1108/JEDT-01-2022-0012Journal of Engineering, Design and Technology2023-01-03© 2022 Emerald Publishing LimitedFemi-favour Olabode OlasunkanmiDubem Isaac IkediashiIkenna Reginald AjieroJournal of Engineering, Design and Technologyahead-of-printahead-of-print2023-01-0310.1108/JEDT-01-2022-0012https://www.emerald.com/insight/content/doi/10.1108/JEDT-01-2022-0012/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2022 Emerald Publishing Limited
Effect of innovative practices on the growth of quantity surveying firms in Nigeriahttps://www.emerald.com/insight/content/doi/10.1108/JEDT-01-2022-0016/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestAlthough the overall impacts of innovation and innovative practices have been emphasized in recent years, the effect on the growth of firms in Nigeria have not been proven. Therefore, this study aims to investigate the effect of innovative practices on the growth of quantity surveying firms (QSFs) in Nigeria. The study adopted the quantitative correlational research design in which a well-structured questionnaire was used to collect data from QSFs in South-West, Nigeria. The data were analyzed using descriptive statistics and multiple regression analysis to investigate the effect of innovative practices on the growth of QSFs. The study reveals that there is a significant increase in the growth indices used for assessing QSFs, while all the innovation variables were found to be reliable. Based on the result of multiple regression analysis, the relationships were identified as follows: quantity surveying (QS) software influenced the size growth of QSFs; QS software and services affected client growth and profit growth; and all innovation practices impacted asset growth of QSFs. Although the use of software tools has been found to negatively affect the size of QSFs and other growth indices, there is need for them to embrace innovative software applications for more quality service delivery. In addition, QSFs should formulate strategic objectives that will guide them in taking informed decisions for diversification. The outcome of this study provides information and direction for innovation practices required to bring about the growth of QSFs.Effect of innovative practices on the growth of quantity surveying firms in Nigeria
Ibukun Oluwadara Famakin, Dorcas Titilayo Moyanga, Ajoke Aminat Agboola
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

Although the overall impacts of innovation and innovative practices have been emphasized in recent years, the effect on the growth of firms in Nigeria have not been proven. Therefore, this study aims to investigate the effect of innovative practices on the growth of quantity surveying firms (QSFs) in Nigeria.

The study adopted the quantitative correlational research design in which a well-structured questionnaire was used to collect data from QSFs in South-West, Nigeria. The data were analyzed using descriptive statistics and multiple regression analysis to investigate the effect of innovative practices on the growth of QSFs.

The study reveals that there is a significant increase in the growth indices used for assessing QSFs, while all the innovation variables were found to be reliable. Based on the result of multiple regression analysis, the relationships were identified as follows: quantity surveying (QS) software influenced the size growth of QSFs; QS software and services affected client growth and profit growth; and all innovation practices impacted asset growth of QSFs.

Although the use of software tools has been found to negatively affect the size of QSFs and other growth indices, there is need for them to embrace innovative software applications for more quality service delivery. In addition, QSFs should formulate strategic objectives that will guide them in taking informed decisions for diversification.

The outcome of this study provides information and direction for innovation practices required to bring about the growth of QSFs.

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Effect of innovative practices on the growth of quantity surveying firms in Nigeria10.1108/JEDT-01-2022-0016Journal of Engineering, Design and Technology2022-12-27© 2022 Emerald Publishing LimitedIbukun Oluwadara FamakinDorcas Titilayo MoyangaAjoke Aminat AgboolaJournal of Engineering, Design and Technologyahead-of-printahead-of-print2022-12-2710.1108/JEDT-01-2022-0016https://www.emerald.com/insight/content/doi/10.1108/JEDT-01-2022-0016/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2022 Emerald Publishing Limited
Conceptual review study of working capital management practices in the construction industry: trends and research prospects in Ghanahttps://www.emerald.com/insight/content/doi/10.1108/JEDT-01-2022-0017/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestThe concept of working capital management (WCM) has been a fundamental financial accounting term that has evolved in financial theory for centuries. Given that the construction industry (CI) is financially dynamic, there is an imperative need to understand its WCM practices. The call for the industry players to adhere to efficient financial management practices as a result of a huge financing gap requires consented effort. This study aims to explore the trend of practices of WCM in the CI and elicit a broader polemic dialogue about this crucial theme. The source of information for the study was secondary mainly from referenced journals and international conference papers published on WCM relating to the CI. A three-step sample selection strategy was adopted to identify the range and scope of publications on WCM in the CI based on the systematic literature review method. The CI cannot boost of enough empirical WCM research to gain in-depth understanding of its practical trend. The developing economies are failing to produce insightful peer-reviewed papers on WCM to assist in bridging the infrastructural financing gap through apposite strategies. Gaining appropriate knowledge of the short-term financial operations through a conceptualization of WCM practices in the CI may lead to better strategies formulated for smooth operations. This is a pioneering paper in developing economies that have taken stock of WCM knowledge of the practical trend in the CI. Future research prospects in which WCM matters can use it as a reference point.Conceptual review study of working capital management practices in the construction industry: trends and research prospects in Ghana
Emmanuel Asare, De-Graft Owusu-Manu, Joshua Ayarkwa, David John Edwards
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

The concept of working capital management (WCM) has been a fundamental financial accounting term that has evolved in financial theory for centuries. Given that the construction industry (CI) is financially dynamic, there is an imperative need to understand its WCM practices. The call for the industry players to adhere to efficient financial management practices as a result of a huge financing gap requires consented effort. This study aims to explore the trend of practices of WCM in the CI and elicit a broader polemic dialogue about this crucial theme.

The source of information for the study was secondary mainly from referenced journals and international conference papers published on WCM relating to the CI. A three-step sample selection strategy was adopted to identify the range and scope of publications on WCM in the CI based on the systematic literature review method.

The CI cannot boost of enough empirical WCM research to gain in-depth understanding of its practical trend. The developing economies are failing to produce insightful peer-reviewed papers on WCM to assist in bridging the infrastructural financing gap through apposite strategies. Gaining appropriate knowledge of the short-term financial operations through a conceptualization of WCM practices in the CI may lead to better strategies formulated for smooth operations.

This is a pioneering paper in developing economies that have taken stock of WCM knowledge of the practical trend in the CI. Future research prospects in which WCM matters can use it as a reference point.

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Conceptual review study of working capital management practices in the construction industry: trends and research prospects in Ghana10.1108/JEDT-01-2022-0017Journal of Engineering, Design and Technology2022-05-17© 2022 Emerald Publishing LimitedEmmanuel AsareDe-Graft Owusu-ManuJoshua AyarkwaDavid John EdwardsJournal of Engineering, Design and Technologyahead-of-printahead-of-print2022-05-1710.1108/JEDT-01-2022-0017https://www.emerald.com/insight/content/doi/10.1108/JEDT-01-2022-0017/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2022 Emerald Publishing Limited
Engineering properties of SBS and crumb-rubber modified bitumen – a design of experiment approachhttps://www.emerald.com/insight/content/doi/10.1108/JEDT-01-2022-0037/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestCracking, deformation and rutting are the most prevalent types of pavement distress, and these deformations and flow characteristics greatly distress the pavement features while also limiting its use. In India, on the other hand, more than 300 million scrap tyres are generated each year, and their disposal has become a severe environmental issue. Furthermore, the scrap generated by the used tyre must be disposed of properly. Hence, this study presents the experimental investigations of bitumen incorporating with Crumb rubber as main additive along with SBS polymer, to enhance the engineering property. Crumb rubber (CR) was used as an additive along with styrene–butadiene–styrene (SBS) polymer to enrich the engineering qualities of the bitumen to reduce the disposal problem of scrap tyres and reduce the risk of environmental pollution. Because SBS polymer is expensive, response surface methodology modelling's central composite design (CCD) was used to optimise the number of tests. CCD modelling's input factors (process variables) were the inclusion rates of SBS and CR, which ranged from 2% to 5% and 4% to 10%, respectively, by total weight. Furthermore, the influence of SBS polymer and CR on the characteristics of modified bitumen was prioritised. The addition of SBS and CR enhanced the bitumen's penetration resistance at service temperatures. Furthermore, increasing the SBS and CR concentration affected the flow characteristics of the modified bitumen and enhanced its viscosity. The addition of SBS and CR as bitumen modifiers increased penetration resistance by 24.06%. The Dynamic Shear Rheometer test demonstrated that the complex modulus of virgin bitumen increases with increasing SBS and CR content, which is consistent with the shifting softening point trend. The dosing rate of up to 3.5% SBS and 11% CR considerably contributed to the creation of polymer link networks, which increased the complex modulus of the bitumen by 16.5%. The CCD model's analysis of variance and Pareto bar chart demonstrated that the dose of CR is significant in improving the engineering features of the virgin bitumen rather than the SBS. The utilisation of CR as a bitumen modifier may solve the problem of waste tyre disposal while also lowering the risk of environmental damage. Furthermore, because the presence of CR increased the engineering properties, particularly the complex modulus of virgin bitumen, the use of CR in combination with SBS polymer can be an efficient and cost-effective strategy to improving bitumen qualities.Engineering properties of SBS and crumb-rubber modified bitumen – a design of experiment approach
Ganesh Prabhu Ganapathy, Theodore C. Haupt, Pandimani
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

Cracking, deformation and rutting are the most prevalent types of pavement distress, and these deformations and flow characteristics greatly distress the pavement features while also limiting its use. In India, on the other hand, more than 300 million scrap tyres are generated each year, and their disposal has become a severe environmental issue. Furthermore, the scrap generated by the used tyre must be disposed of properly. Hence, this study presents the experimental investigations of bitumen incorporating with Crumb rubber as main additive along with SBS polymer, to enhance the engineering property.

Crumb rubber (CR) was used as an additive along with styrene–butadiene–styrene (SBS) polymer to enrich the engineering qualities of the bitumen to reduce the disposal problem of scrap tyres and reduce the risk of environmental pollution. Because SBS polymer is expensive, response surface methodology modelling's central composite design (CCD) was used to optimise the number of tests. CCD modelling's input factors (process variables) were the inclusion rates of SBS and CR, which ranged from 2% to 5% and 4% to 10%, respectively, by total weight. Furthermore, the influence of SBS polymer and CR on the characteristics of modified bitumen was prioritised.

The addition of SBS and CR enhanced the bitumen's penetration resistance at service temperatures. Furthermore, increasing the SBS and CR concentration affected the flow characteristics of the modified bitumen and enhanced its viscosity. The addition of SBS and CR as bitumen modifiers increased penetration resistance by 24.06%. The Dynamic Shear Rheometer test demonstrated that the complex modulus of virgin bitumen increases with increasing SBS and CR content, which is consistent with the shifting softening point trend. The dosing rate of up to 3.5% SBS and 11% CR considerably contributed to the creation of polymer link networks, which increased the complex modulus of the bitumen by 16.5%. The CCD model's analysis of variance and Pareto bar chart demonstrated that the dose of CR is significant in improving the engineering features of the virgin bitumen rather than the SBS.

The utilisation of CR as a bitumen modifier may solve the problem of waste tyre disposal while also lowering the risk of environmental damage. Furthermore, because the presence of CR increased the engineering properties, particularly the complex modulus of virgin bitumen, the use of CR in combination with SBS polymer can be an efficient and cost-effective strategy to improving bitumen qualities.

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Engineering properties of SBS and crumb-rubber modified bitumen – a design of experiment approach10.1108/JEDT-01-2022-0037Journal of Engineering, Design and Technology2023-05-11© 2023 Emerald Publishing LimitedGanesh Prabhu GanapathyTheodore C. HauptPandimani Journal of Engineering, Design and Technologyahead-of-printahead-of-print2023-05-1110.1108/JEDT-01-2022-0037https://www.emerald.com/insight/content/doi/10.1108/JEDT-01-2022-0037/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2023 Emerald Publishing Limited
Improving quantity surveying education through continually updating curriculum digitalisation to meet industry requirementshttps://www.emerald.com/insight/content/doi/10.1108/JEDT-01-2022-0043/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestThe dynamic nature of the built environment and trending smart construction project complexities demand proactive needs tailored towards architecture, engineering and construction (AEC) education. It is a task for the built environment professionals (BEP) to prepare for the future, including the quantity surveying (QS) profession. Studies are scarce in preparing QS education from Nigeria’s stakeholders’ perspective regarding digital technology. Therefore, this paper aims to investigate how to improve QS education by continually updating curriculum digitalisation to meet the construction industry requirements. Data were sourced from elite virtual interviews across Nigeria. A total of 40 key stakeholders knowledgeable in QS education, advocating a future template for the advancement of QS education in higher institutions, were engaged, and saturation was achieved. Findings show that improving QS education through continually updating curriculum digitalisation to meet industry requirements cannot be over-emphasised in the 21st-century-built environment industry. The outcomes of the results led to the conclusion that the current QS education curriculum was not meeting the expectations of other BEP stakeholders. Thus, for competitiveness in the future, the QS education curriculum needs to infuse more related-digital technology modules/courses to assist in the sustainability and relevance of the profession within the BEP. This paper focussed on improving Nigeria’s QS education using digital technologies via a qualitative approach. Future study is needed via a quantitative approach for broader coverage and validation. The research revealed the need for designing QS programmes to provide for industry demands with emphasis on digital technologies modules/courses. Nigeria’s QS education stakeholders have been stirred up to embrace the curriculum review and make the profession digitalised and relevant within the BEP. The built environment sector is trending towards digitalisation, and the QS programmes cannot afford to be behind. This research identified the current gap regarding digitalisation of the curriculum. This study will stir QS educational providers and regulators to improve future programmes via digital technologies. It would encourage the use of digital technologies with the right enabling environment. The outcome would mitigate the gap and improve Nigeria’s QS education in the future.Improving quantity surveying education through continually updating curriculum digitalisation to meet industry requirements
Andrew Ebekozien, Clinton Ohis Aigbavboa
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

The dynamic nature of the built environment and trending smart construction project complexities demand proactive needs tailored towards architecture, engineering and construction (AEC) education. It is a task for the built environment professionals (BEP) to prepare for the future, including the quantity surveying (QS) profession. Studies are scarce in preparing QS education from Nigeria’s stakeholders’ perspective regarding digital technology. Therefore, this paper aims to investigate how to improve QS education by continually updating curriculum digitalisation to meet the construction industry requirements.

Data were sourced from elite virtual interviews across Nigeria. A total of 40 key stakeholders knowledgeable in QS education, advocating a future template for the advancement of QS education in higher institutions, were engaged, and saturation was achieved.

Findings show that improving QS education through continually updating curriculum digitalisation to meet industry requirements cannot be over-emphasised in the 21st-century-built environment industry. The outcomes of the results led to the conclusion that the current QS education curriculum was not meeting the expectations of other BEP stakeholders. Thus, for competitiveness in the future, the QS education curriculum needs to infuse more related-digital technology modules/courses to assist in the sustainability and relevance of the profession within the BEP.

This paper focussed on improving Nigeria’s QS education using digital technologies via a qualitative approach. Future study is needed via a quantitative approach for broader coverage and validation.

The research revealed the need for designing QS programmes to provide for industry demands with emphasis on digital technologies modules/courses. Nigeria’s QS education stakeholders have been stirred up to embrace the curriculum review and make the profession digitalised and relevant within the BEP. The built environment sector is trending towards digitalisation, and the QS programmes cannot afford to be behind.

This research identified the current gap regarding digitalisation of the curriculum. This study will stir QS educational providers and regulators to improve future programmes via digital technologies. It would encourage the use of digital technologies with the right enabling environment. The outcome would mitigate the gap and improve Nigeria’s QS education in the future.

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Improving quantity surveying education through continually updating curriculum digitalisation to meet industry requirements10.1108/JEDT-01-2022-0043Journal of Engineering, Design and Technology2023-05-12© 2023 Emerald Publishing LimitedAndrew EbekozienClinton Ohis AigbavboaJournal of Engineering, Design and Technologyahead-of-printahead-of-print2023-05-1210.1108/JEDT-01-2022-0043https://www.emerald.com/insight/content/doi/10.1108/JEDT-01-2022-0043/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2023 Emerald Publishing Limited
Design creativity in Industry 4.0: Gravity Sketch and 3D printing in a Luminaire design projecthttps://www.emerald.com/insight/content/doi/10.1108/JEDT-01-2022-0053/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestThis study aims to explore the impact of experiencing virtual reality (VR) and three-dimensional (3D) printing during the design process on the creativity of interior design students in a luminaire design project. This study used the case-study approach within the context of a nine-week luminaire design project. Collected data included self-reported interest and engagement of students from a Qualtrics questionnaire and the ratings of their creativity via the Creative Product Semantic Scale (CPSS) with two judges. Descriptive statistics from the Qualtrics questionnaire indicated an overall high level of student interest and engagement with the VR and 3D printing learning experience. Paired t-tests from CPSS ratings of the two judges showed a moderate increase in novelty and a significant increase in style with the introduction of VR and 3D printing technologies, respectively. Spearman’s correlations (rho) showed no statistical evidence for the relationships between CPSS ratings for creativity and students’ self-reported interest and engagement in VR and 3D printing learning experience. Ample access time to VR technology and sufficient control over the 3D printing process are important for effective applications of Industry 4.0 technologies in organizations. This study dissected the confounding variables in its results as practical considerations for intergrading VR and 3D printing technologies for organizations in Industry 4.0. This study acknowledged VR and 3D printing technologies as simulants for interest and engagement, which benefit creativity.Design creativity in Industry 4.0: Gravity Sketch and 3D printing in a Luminaire design project
Hoa Vo
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

This study aims to explore the impact of experiencing virtual reality (VR) and three-dimensional (3D) printing during the design process on the creativity of interior design students in a luminaire design project.

This study used the case-study approach within the context of a nine-week luminaire design project. Collected data included self-reported interest and engagement of students from a Qualtrics questionnaire and the ratings of their creativity via the Creative Product Semantic Scale (CPSS) with two judges.

Descriptive statistics from the Qualtrics questionnaire indicated an overall high level of student interest and engagement with the VR and 3D printing learning experience. Paired t-tests from CPSS ratings of the two judges showed a moderate increase in novelty and a significant increase in style with the introduction of VR and 3D printing technologies, respectively.

Spearman’s correlations (rho) showed no statistical evidence for the relationships between CPSS ratings for creativity and students’ self-reported interest and engagement in VR and 3D printing learning experience.

Ample access time to VR technology and sufficient control over the 3D printing process are important for effective applications of Industry 4.0 technologies in organizations.

This study dissected the confounding variables in its results as practical considerations for intergrading VR and 3D printing technologies for organizations in Industry 4.0.

This study acknowledged VR and 3D printing technologies as simulants for interest and engagement, which benefit creativity.

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Design creativity in Industry 4.0: Gravity Sketch and 3D printing in a Luminaire design project10.1108/JEDT-01-2022-0053Journal of Engineering, Design and Technology2022-12-08© 2022 Emerald Publishing LimitedHoa VoJournal of Engineering, Design and Technologyahead-of-printahead-of-print2022-12-0810.1108/JEDT-01-2022-0053https://www.emerald.com/insight/content/doi/10.1108/JEDT-01-2022-0053/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2022 Emerald Publishing Limited
Assessing users-designers’ gap of perception to help design for a hybrid product domain: application to sport-health product domainhttps://www.emerald.com/insight/content/doi/10.1108/JEDT-01-2022-0064/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestRegarding industrial sports products, there is sometimes a dual sport and health meaning intended by designers. Appearances of sport products are often quite opposite to health products. Design choices made by designers can thus be misunderstood by users. This paper aims to deeper understand the perception gap between designers and users within earlier stages of the design process to limit this confusion and help designers. The authors propose an approach to help designers defining the perception of a new dual and hybrid product field. The first step is to collect designers’ perception through interviews combined with card sorting. The second step is to compare the perception of designers with that of users. Comparisons are based on an agreement measure. The approach provides a first step to evaluate the perception of a dual hybrid product field. It allows designers to extract trends and perceptions to be considered for the design of products, to consolidate and confirm their intuitions regarding the intended dual meaning. The main contribution of this paper is to evaluate the perception of a new and non-defined hybrid product field presenting a duality in appearance. This approach can be used by designers either to identify trends to be considered, reinforce the intended meaning, or validate their intuitions while designing products with dual meanings before.Assessing users-designers’ gap of perception to help design for a hybrid product domain: application to sport-health product domain
Antoine Millet, Audrey Abi Akle, Jérémy Legardeur
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

Regarding industrial sports products, there is sometimes a dual sport and health meaning intended by designers. Appearances of sport products are often quite opposite to health products. Design choices made by designers can thus be misunderstood by users. This paper aims to deeper understand the perception gap between designers and users within earlier stages of the design process to limit this confusion and help designers.

The authors propose an approach to help designers defining the perception of a new dual and hybrid product field. The first step is to collect designers’ perception through interviews combined with card sorting. The second step is to compare the perception of designers with that of users. Comparisons are based on an agreement measure.

The approach provides a first step to evaluate the perception of a dual hybrid product field. It allows designers to extract trends and perceptions to be considered for the design of products, to consolidate and confirm their intuitions regarding the intended dual meaning.

The main contribution of this paper is to evaluate the perception of a new and non-defined hybrid product field presenting a duality in appearance. This approach can be used by designers either to identify trends to be considered, reinforce the intended meaning, or validate their intuitions while designing products with dual meanings before.

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Assessing users-designers’ gap of perception to help design for a hybrid product domain: application to sport-health product domain10.1108/JEDT-01-2022-0064Journal of Engineering, Design and Technology2023-03-27© 2023 Emerald Publishing LimitedAntoine MilletAudrey Abi AkleJérémy LegardeurJournal of Engineering, Design and Technologyahead-of-printahead-of-print2023-03-2710.1108/JEDT-01-2022-0064https://www.emerald.com/insight/content/doi/10.1108/JEDT-01-2022-0064/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2023 Emerald Publishing Limited
Barriers and enablers of TRIZ: a literature analysis using the TASKS frameworkhttps://www.emerald.com/insight/content/doi/10.1108/JEDT-01-2022-0066/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestThe purpose of this paper is to analyze theory of inventive problem-solving (TRIZ) in terms of knowledge, skill, workload and affect to understand its effectiveness in enabling designers to achieve their optimized mental performance. TASKS framework, which aims to capture the causal relations among Task workload, affect, skills, knowledge and mental stress, is adopted as our methodology. The framework supports the analysis of how a methodology influence designer’s affect, skills, knowledge and workload. TRIZ-related publications are assessed using the TASKS framework to identify the barriers and enablers in TRIZ-supported design. TRIZ has limitations on its logic and tools. Nevertheless, it could create a beneficial impact on mental performance of designers. This paper provides a theory-driven TRIZ usability analysis based on the materials in the literature following the TASKS framework. The impact of TRIZ, as an enabler or a barrier, has been analyzed in accomplishing a design task.Barriers and enablers of TRIZ: a literature analysis using the TASKS framework
Ali Mohammadi, Jiami Yang, Yuri Borgianni, Yong Zeng
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

The purpose of this paper is to analyze theory of inventive problem-solving (TRIZ) in terms of knowledge, skill, workload and affect to understand its effectiveness in enabling designers to achieve their optimized mental performance.

TASKS framework, which aims to capture the causal relations among Task workload, affect, skills, knowledge and mental stress, is adopted as our methodology. The framework supports the analysis of how a methodology influence designer’s affect, skills, knowledge and workload. TRIZ-related publications are assessed using the TASKS framework to identify the barriers and enablers in TRIZ-supported design.

TRIZ has limitations on its logic and tools. Nevertheless, it could create a beneficial impact on mental performance of designers.

This paper provides a theory-driven TRIZ usability analysis based on the materials in the literature following the TASKS framework. The impact of TRIZ, as an enabler or a barrier, has been analyzed in accomplishing a design task.

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Barriers and enablers of TRIZ: a literature analysis using the TASKS framework10.1108/JEDT-01-2022-0066Journal of Engineering, Design and Technology2022-06-28© 2022 Emerald Publishing LimitedAli MohammadiJiami YangYuri BorgianniYong ZengJournal of Engineering, Design and Technologyahead-of-printahead-of-print2022-06-2810.1108/JEDT-01-2022-0066https://www.emerald.com/insight/content/doi/10.1108/JEDT-01-2022-0066/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2022 Emerald Publishing Limited
Investigating the implementation of immersive technologies within on-site construction safety processeshttps://www.emerald.com/insight/content/doi/10.1108/JEDT-01-2023-0005/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestThe benefits of integrating immersive technologies (ImTs) within a construction safety context are acknowledged within the literature; however, its practical application on construction sites remains low. Whilst research into the integration of ImTs within the construction industry is underway, most have viewed this from a broader adoption context or within educational settings, and not specifically from a practical on-site safety perspective. Therefore, the purpose of this study is to address the contributing factors to its integration within on-site safety processes, using the experiences of active construction professionals. This study adopts a qualitative approach. Data was collected through online focus groups involving UK based construction professionals with experience in using ImTs, recruited using selective sampling. Data sets were subsequently analysed using inductive thematic analysis and are presented within key themes. The results showed that among the experienced construction professionals, the use of ImTs specifically for on-site safety applications (including inductions/training/workshops) was rare on projects. The findings identified various contributing factors related to the integration of ImTs, including the potential improvements in on-site safety practices such as enhanced communication of hazards, safety planning, engagement during training and more accurate risk assessment. Critical challenges, concerns and frustrations included a lack of engagement from senior level management, inadequate leadership, limited investment, a need for digital expertise, fear of complacency and the acceptance of ImTs within existing safety processes from the wider project team. This study provides a fresh perspective to this field by using practical accounts from active and experienced on-site construction professionals. This study supports the integration of ImTs within the construction industry, presenting key contributing factors influencing its integration within on-site safety processes. These factors can be considered by industry adopters, and includes the rationale, challenges and potential on-site benefits of ImTs.Investigating the implementation of immersive technologies within on-site construction safety processes
Mark Swallow, Sambo Lyson Zulu
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

The benefits of integrating immersive technologies (ImTs) within a construction safety context are acknowledged within the literature; however, its practical application on construction sites remains low. Whilst research into the integration of ImTs within the construction industry is underway, most have viewed this from a broader adoption context or within educational settings, and not specifically from a practical on-site safety perspective. Therefore, the purpose of this study is to address the contributing factors to its integration within on-site safety processes, using the experiences of active construction professionals.

This study adopts a qualitative approach. Data was collected through online focus groups involving UK based construction professionals with experience in using ImTs, recruited using selective sampling. Data sets were subsequently analysed using inductive thematic analysis and are presented within key themes.

The results showed that among the experienced construction professionals, the use of ImTs specifically for on-site safety applications (including inductions/training/workshops) was rare on projects. The findings identified various contributing factors related to the integration of ImTs, including the potential improvements in on-site safety practices such as enhanced communication of hazards, safety planning, engagement during training and more accurate risk assessment. Critical challenges, concerns and frustrations included a lack of engagement from senior level management, inadequate leadership, limited investment, a need for digital expertise, fear of complacency and the acceptance of ImTs within existing safety processes from the wider project team.

This study provides a fresh perspective to this field by using practical accounts from active and experienced on-site construction professionals. This study supports the integration of ImTs within the construction industry, presenting key contributing factors influencing its integration within on-site safety processes. These factors can be considered by industry adopters, and includes the rationale, challenges and potential on-site benefits of ImTs.

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Investigating the implementation of immersive technologies within on-site construction safety processes10.1108/JEDT-01-2023-0005Journal of Engineering, Design and Technology2023-06-13© 2023 Emerald Publishing LimitedMark SwallowSambo Lyson ZuluJournal of Engineering, Design and Technologyahead-of-printahead-of-print2023-06-1310.1108/JEDT-01-2023-0005https://www.emerald.com/insight/content/doi/10.1108/JEDT-01-2023-0005/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2023 Emerald Publishing Limited
Lean manufacturing implementation in iron and steel industries: effect of wastes management on the production costshttps://www.emerald.com/insight/content/doi/10.1108/JEDT-01-2023-0012/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestThis study aims to improve the market competitiveness of iron and steel manufacturers in developing countries by reducing their production costs. The research methodology relies on a case study-based approach. The study relies on six steps. The first is the preparation, then the five steps of the six-sigma – define, measure, analyze, improve, control. The qualitative and quantitative data were considered. The qualitative analysis relies on the experts’ judgment of internal status. The quantitative analysis uses the job floor data from three iron and steel manufacturers. After collecting, screening and analyzing the data, the root causes of the different wastes were identified that increase production costs. Consequently, lean manufacturing principles and tools are identified and prioritized using the decision-making trial and evaluation laboratory method, and then implemented to reduce the different types of waste. The main wastes are related to inventory, time, quality and workforce. The lean tools were proposed with the implementation plan for the discovered root causes. The performance was monitored during and after the implementation of the lean initiatives in one of the three companies. The obtained results showed an increase in some performance indicators such as throughput (70.6%), revenue from by-products (459%), inventory turnover (54%), operation availability (45%), and plant availability (41%). On the other hand, results showed a decrease of time delay (78%), man-hour/ton (52.4%) and downgraded products (63.3%). The current case study findings can be utilized by Iron and Steel factories at the developing countries. In addition, the proposed lean implementation methodology can be adopted for any other industries. The current work introduces an original and practical road map to implement the lean six-sigma body of knowledge in the iron and steel manufacturers. This work introduces an effective and practical case study-based approach to implementing the lean six-sigma body of knowledge in the iron and steel manufacturers in one of the underdevelopment countries. The consideration of the opinion of the different engineers from different sectors shows significant identification of the major problems in the manufacturing and utility sectors that lead to significant performance improvement after solving them.Lean manufacturing implementation in iron and steel industries: effect of wastes management on the production costs
Nasser Zaky, Mohamed Zaky Ahmed, Ali Alarjani, El-Awady Attia
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

This study aims to improve the market competitiveness of iron and steel manufacturers in developing countries by reducing their production costs.

The research methodology relies on a case study-based approach. The study relies on six steps. The first is the preparation, then the five steps of the six-sigma – define, measure, analyze, improve, control. The qualitative and quantitative data were considered. The qualitative analysis relies on the experts’ judgment of internal status. The quantitative analysis uses the job floor data from three iron and steel manufacturers. After collecting, screening and analyzing the data, the root causes of the different wastes were identified that increase production costs. Consequently, lean manufacturing principles and tools are identified and prioritized using the decision-making trial and evaluation laboratory method, and then implemented to reduce the different types of waste.

The main wastes are related to inventory, time, quality and workforce. The lean tools were proposed with the implementation plan for the discovered root causes. The performance was monitored during and after the implementation of the lean initiatives in one of the three companies. The obtained results showed an increase in some performance indicators such as throughput (70.6%), revenue from by-products (459%), inventory turnover (54%), operation availability (45%), and plant availability (41%). On the other hand, results showed a decrease of time delay (78%), man-hour/ton (52.4%) and downgraded products (63.3%).

The current case study findings can be utilized by Iron and Steel factories at the developing countries. In addition, the proposed lean implementation methodology can be adopted for any other industries.

The current work introduces an original and practical road map to implement the lean six-sigma body of knowledge in the iron and steel manufacturers.

This work introduces an effective and practical case study-based approach to implementing the lean six-sigma body of knowledge in the iron and steel manufacturers in one of the underdevelopment countries. The consideration of the opinion of the different engineers from different sectors shows significant identification of the major problems in the manufacturing and utility sectors that lead to significant performance improvement after solving them.

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Lean manufacturing implementation in iron and steel industries: effect of wastes management on the production costs10.1108/JEDT-01-2023-0012Journal of Engineering, Design and Technology2023-08-24© 2023 Emerald Publishing LimitedNasser ZakyMohamed Zaky AhmedAli AlarjaniEl-Awady AttiaJournal of Engineering, Design and Technologyahead-of-printahead-of-print2023-08-2410.1108/JEDT-01-2023-0012https://www.emerald.com/insight/content/doi/10.1108/JEDT-01-2023-0012/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2023 Emerald Publishing Limited
Effect of the drag coefficient on the performance of vertical porous baffles in a sloshing tankhttps://www.emerald.com/insight/content/doi/10.1108/JEDT-01-2023-0021/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestThe present work involves analytical and experimental investigation of sloshing in a two-dimensional rectangular tank including the effect of porous baffles to control and/or reduce the wave motion in the sloshing tank. The purpose of this study is to assess the analytical solutions of the drag coefficient effect on porous baffles performance to track free surface motion variation in the sloshing tank by comparison with experimental shake table tests under a range of sway excitation. The linear second-order ordinary differential equations for liquid sloshing in the rectangular tank were solved using Newmark’s beta method and obtained the analytical solutions for liquid sloshing with dual vertical porous baffles of full submergence depths in a sway-oscillated rectangular tank following the methodology similar to Warnitchai and Pinkaew (1998) and Tait (2008). The porous baffles significantly reduce wave elevation in the varying filled levels of the tank compared to the baffle-free tank under the range of excitation frequencies. It is observed that the Reynolds number-dependent drag coefficient for porous baffles in the tank can significantly reduce the sloshing elevations and is found to be effective to achieve higher damping compared to the porosity-dependent drag coefficient for porous baffles in the sloshing tank. The analytical model’s response to free surface elevation variations in the sloshing tank was compared with the experiment’s test results. The analytical results matched with shake table test results with a quantitative difference near the first resonant frequency. The scope of the study is limited to porous baffles performance under range sway motion and three different filling levels in the tank. The porous baffle performance includes Reynolds number dependent drag coefficient to explore the damping effect in the sloshing tank. The porous baffles with low-level porosities in the sloshing tank have many engineering applications where the first resonant mode of sloshing in the tank is more important. The porous baffle drag coefficient is an important parameter to study the baffle’s damping effect in sloshing tanks. Hence, obtained analytical solution for liquid sloshing in the rectangular tank with Reynolds number as well as porosity-dependent drag coefficient (model 1) and porosity-dependent drag coefficient porous baffles (model 2) performance is discussed. The model’s test results were validated using a series of shake table sloshing experiments for three fill levels in the tank with sway motion at various excitation frequencies covering the first four sloshing resonant modes.Effect of the drag coefficient on the performance of vertical porous baffles in a sloshing tank
Mallikarjun S. Bhandiwad, B.M. Dodamani, Deepak M.D.
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

The present work involves analytical and experimental investigation of sloshing in a two-dimensional rectangular tank including the effect of porous baffles to control and/or reduce the wave motion in the sloshing tank. The purpose of this study is to assess the analytical solutions of the drag coefficient effect on porous baffles performance to track free surface motion variation in the sloshing tank by comparison with experimental shake table tests under a range of sway excitation.

The linear second-order ordinary differential equations for liquid sloshing in the rectangular tank were solved using Newmark’s beta method and obtained the analytical solutions for liquid sloshing with dual vertical porous baffles of full submergence depths in a sway-oscillated rectangular tank following the methodology similar to Warnitchai and Pinkaew (1998) and Tait (2008).

The porous baffles significantly reduce wave elevation in the varying filled levels of the tank compared to the baffle-free tank under the range of excitation frequencies. It is observed that the Reynolds number-dependent drag coefficient for porous baffles in the tank can significantly reduce the sloshing elevations and is found to be effective to achieve higher damping compared to the porosity-dependent drag coefficient for porous baffles in the sloshing tank. The analytical model’s response to free surface elevation variations in the sloshing tank was compared with the experiment’s test results. The analytical results matched with shake table test results with a quantitative difference near the first resonant frequency.

The scope of the study is limited to porous baffles performance under range sway motion and three different filling levels in the tank. The porous baffle performance includes Reynolds number dependent drag coefficient to explore the damping effect in the sloshing tank.

The porous baffles with low-level porosities in the sloshing tank have many engineering applications where the first resonant mode of sloshing in the tank is more important. The porous baffle drag coefficient is an important parameter to study the baffle’s damping effect in sloshing tanks. Hence, obtained analytical solution for liquid sloshing in the rectangular tank with Reynolds number as well as porosity-dependent drag coefficient (model 1) and porosity-dependent drag coefficient porous baffles (model 2) performance is discussed. The model’s test results were validated using a series of shake table sloshing experiments for three fill levels in the tank with sway motion at various excitation frequencies covering the first four sloshing resonant modes.

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Effect of the drag coefficient on the performance of vertical porous baffles in a sloshing tank10.1108/JEDT-01-2023-0021Journal of Engineering, Design and Technology2023-10-23© 2023 Emerald Publishing LimitedMallikarjun S. BhandiwadB.M. DodamaniDeepak M.D.Journal of Engineering, Design and Technologyahead-of-printahead-of-print2023-10-2310.1108/JEDT-01-2023-0021https://www.emerald.com/insight/content/doi/10.1108/JEDT-01-2023-0021/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2023 Emerald Publishing Limited
The moderating role of emerging technologies on the impact of coronavirus disease 2019 and the performance of construction projects: the case of Pakistanhttps://www.emerald.com/insight/content/doi/10.1108/JEDT-01-2023-0033/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestThe purpose of this study is to investigate the impact of Corona Virus Disease 2019 (COVID-19) on the outcome of construction projects and explore the moderating effects of emerging technologies on the relationship between COVID-19 and construction project outcomes. Data for the study was collected through a Web-based, semistructured questionnaire. The responses of 62 construction practitioners were analyzed using a hierarchical linear regression model. The model consists of 16 independent variables, three control variables (organization size, organization type and project size), one moderator (adoption level of emerging technologies) and three dependent variables (project time, project cost and project quality). The study confirms the negative significant impact of the COVID-19 pandemic on the performance of construction projects. It also identifies the significant moderating effects of emerging technologies in mitigating the impact of COVID-19 on construction projects. Further, it shows a significant increase in the application of emerging technologies in construction projects during the COVID-19 pandemic. Based on the findings related to the moderating impact of the technology, this study provides a clear set of recommendations for construction firms, public sector and research community in combating the unavoidable situation similar to the COVID-19 pandemic in the future. To the best of the authors’ knowledge, this is the first study to identify the moderating role of technology on the impact of COVID-19 on the performance of the construction sector in Pakistan. The findings can also be used for the construction sectors of other developing countries.The moderating role of emerging technologies on the impact of coronavirus disease 2019 and the performance of construction projects: the case of Pakistan
Muhammad Ayat, Sheheryar Mohsin Qureshi, Malikah , Changwook Kang
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

The purpose of this study is to investigate the impact of Corona Virus Disease 2019 (COVID-19) on the outcome of construction projects and explore the moderating effects of emerging technologies on the relationship between COVID-19 and construction project outcomes.

Data for the study was collected through a Web-based, semistructured questionnaire. The responses of 62 construction practitioners were analyzed using a hierarchical linear regression model. The model consists of 16 independent variables, three control variables (organization size, organization type and project size), one moderator (adoption level of emerging technologies) and three dependent variables (project time, project cost and project quality).

The study confirms the negative significant impact of the COVID-19 pandemic on the performance of construction projects. It also identifies the significant moderating effects of emerging technologies in mitigating the impact of COVID-19 on construction projects. Further, it shows a significant increase in the application of emerging technologies in construction projects during the COVID-19 pandemic. Based on the findings related to the moderating impact of the technology, this study provides a clear set of recommendations for construction firms, public sector and research community in combating the unavoidable situation similar to the COVID-19 pandemic in the future.

To the best of the authors’ knowledge, this is the first study to identify the moderating role of technology on the impact of COVID-19 on the performance of the construction sector in Pakistan. The findings can also be used for the construction sectors of other developing countries.

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The moderating role of emerging technologies on the impact of coronavirus disease 2019 and the performance of construction projects: the case of Pakistan10.1108/JEDT-01-2023-0033Journal of Engineering, Design and Technology2023-05-16© 2023 Emerald Publishing LimitedMuhammad AyatSheheryar Mohsin QureshiMalikah Changwook KangJournal of Engineering, Design and Technologyahead-of-printahead-of-print2023-05-1610.1108/JEDT-01-2023-0033https://www.emerald.com/insight/content/doi/10.1108/JEDT-01-2023-0033/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2023 Emerald Publishing Limited
A framework for enhancing building maintainability through facilitating early suppliers’ involvement in the design processhttps://www.emerald.com/insight/content/doi/10.1108/JEDT-02-2022-0090/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestThe aim of this paper is to develop a framework to enhance building maintainability through facilitating early suppliers’ involvement (ESI) in the design process. A research methodology consisting of literature review, case studies and survey questionnaire was designed to achieve the above-mentioned aim. Firstly, literature review was used to examine the concepts of building maintenance, maintainability, the design process and ESI. Secondly, three case studies were presented and analysed to investigate the role of ESI towards enhancing building maintainability during the design process. Thirdly, a survey questionnaire was carried out with a representative sample of architectural design firms (ADFs) in Egypt to investigate their perception and application of ESI towards enhancing building maintainability during the design process. Finally, the research developed a framework to facilitate ESI in the design process in ADFs in Egypt. Through literature review, the research highlighted the relationship between ESI and enhancing building maintainability and identified the roles, benefits, challenges and that encounter ESI in ADFs, factors for suppliers selection and levels of involvement. Results of the data analysis showed that “Difficulty of trusting external parties and sharing information with transparency” was ranked the highest challenge of ESI in ADFs in Egypt, followed by “Legal competitive advantage restrictions”. Moreover, “Better estimation for operation and maintenance costs” was ranked the highest contributions of ESI towards enhancing building maintainability, followed by “Reduce the number of operation and maintenance problems or reworks”. Finally, respondents stated that “Innovation, technical expertise, and competence” was ranked the highest supplier’s selection criteria, while “paying consultation fees for offering advice and recommendations to the design team” was ranked the highest form of supplier’s remuneration. The proposed framework contributes to the body of knowledge through proposing five functions that aimed to facilitate ESI in the design process, a research area that received scant attention in construction research. In addition, because of the conceptual nature of the framework, it has to be validated to ensure its capability to overcome the challenges of ESI as an approach for enhancing building maintainability during the design process. This research presents a practical solution that bridges the gap between theory and practice through overcoming the challenges that obstruct suppliers from being involved in the design process as an approach for enhancing building maintainability. This research discussed the relationship between ESI and enhancing building maintainability as well as the roles, benefits and challenges that encounter ESI in ADFs. In addition, the research investigated the levels of suppliers’ involvement, selection criteria and forms of payment. Moreover, it investigated the perception and application of ESI in ADFs in Egypt towards improving building maintainability. The research proposed a framework to facilitate the integration of suppliers in the early stages of the project life cycle. It represents a synthesis that is novel and creative in thought and adds value to the knowledge in a manner that has not previously occurred.A framework for enhancing building maintainability through facilitating early suppliers’ involvement in the design process
Ayman Ahmed Ezzat Othman, Ahmed Ramadan Kamal
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

The aim of this paper is to develop a framework to enhance building maintainability through facilitating early suppliers’ involvement (ESI) in the design process.

A research methodology consisting of literature review, case studies and survey questionnaire was designed to achieve the above-mentioned aim. Firstly, literature review was used to examine the concepts of building maintenance, maintainability, the design process and ESI. Secondly, three case studies were presented and analysed to investigate the role of ESI towards enhancing building maintainability during the design process. Thirdly, a survey questionnaire was carried out with a representative sample of architectural design firms (ADFs) in Egypt to investigate their perception and application of ESI towards enhancing building maintainability during the design process. Finally, the research developed a framework to facilitate ESI in the design process in ADFs in Egypt.

Through literature review, the research highlighted the relationship between ESI and enhancing building maintainability and identified the roles, benefits, challenges and that encounter ESI in ADFs, factors for suppliers selection and levels of involvement. Results of the data analysis showed that “Difficulty of trusting external parties and sharing information with transparency” was ranked the highest challenge of ESI in ADFs in Egypt, followed by “Legal competitive advantage restrictions”. Moreover, “Better estimation for operation and maintenance costs” was ranked the highest contributions of ESI towards enhancing building maintainability, followed by “Reduce the number of operation and maintenance problems or reworks”. Finally, respondents stated that “Innovation, technical expertise, and competence” was ranked the highest supplier’s selection criteria, while “paying consultation fees for offering advice and recommendations to the design team” was ranked the highest form of supplier’s remuneration.

The proposed framework contributes to the body of knowledge through proposing five functions that aimed to facilitate ESI in the design process, a research area that received scant attention in construction research. In addition, because of the conceptual nature of the framework, it has to be validated to ensure its capability to overcome the challenges of ESI as an approach for enhancing building maintainability during the design process.

This research presents a practical solution that bridges the gap between theory and practice through overcoming the challenges that obstruct suppliers from being involved in the design process as an approach for enhancing building maintainability.

This research discussed the relationship between ESI and enhancing building maintainability as well as the roles, benefits and challenges that encounter ESI in ADFs. In addition, the research investigated the levels of suppliers’ involvement, selection criteria and forms of payment. Moreover, it investigated the perception and application of ESI in ADFs in Egypt towards improving building maintainability. The research proposed a framework to facilitate the integration of suppliers in the early stages of the project life cycle. It represents a synthesis that is novel and creative in thought and adds value to the knowledge in a manner that has not previously occurred.

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A framework for enhancing building maintainability through facilitating early suppliers’ involvement in the design process10.1108/JEDT-02-2022-0090Journal of Engineering, Design and Technology2022-07-14© 2022 Emerald Publishing LimitedAyman Ahmed Ezzat OthmanAhmed Ramadan KamalJournal of Engineering, Design and Technologyahead-of-printahead-of-print2022-07-1410.1108/JEDT-02-2022-0090https://www.emerald.com/insight/content/doi/10.1108/JEDT-02-2022-0090/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2022 Emerald Publishing Limited
Using the TOE theoretical framework to study the adoption of BIM-AR in a developing country: the case of Ghanahttps://www.emerald.com/insight/content/doi/10.1108/JEDT-02-2022-0096/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestBuilding information modelling (BIM) and augmented reality (AR) are unique technologies in the digitalized construction industry. In spite of the numerous benefits of BIM-AR, its adoption has been at a relatively slow pace. The purpose of this study is to investigate how the factors within technology–organization–environment (TOE) framework influence the adoption of BIM-AR in the context of construction companies in a developing country. By using a mainly deductive quantitative design, survey data were collected from senior management of built environment companies in Ghana using questionnaires. The study adopted a mixture of both purposive and snowball sampling approaches. Partial least squares structural equation modelling was used to analyse how the factors within the TOE framework explain BIM-AR adoption in Ghana. Findings from the study show that the top three factors within the TOE framework that facilitate the adoption of BIM-AR include ICT infrastructure within construction firms; the size of the construction firm, which may influence the financial capacity to accommodate BIM-AR; and competitive pressure. The inhibitors of BIM-AR at the company level included external support and trading partners’ readiness. Implicit is that the significant factors will be useful to policymakers and companies in developing programs that appeal to non-adopters to aid in mitigating their challenges and further enhance BIM-AR adoption. The value of this paper has been the use of the theoretical framework TOE to explain the adoption factors of BIM-AR in the Ghanaian construction industry. The originality of the paper is further anchored in consideration of BIM-AR, which is quite nascent in emerging countries.Using the TOE theoretical framework to study the adoption of BIM-AR in a developing country: the case of Ghana
Michael Nii Addy, Titus Ebenezer Ebenezer Kwofie, Divine Mawutor Agbonani, Adikie E. Essegbey
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

Building information modelling (BIM) and augmented reality (AR) are unique technologies in the digitalized construction industry. In spite of the numerous benefits of BIM-AR, its adoption has been at a relatively slow pace. The purpose of this study is to investigate how the factors within technology–organization–environment (TOE) framework influence the adoption of BIM-AR in the context of construction companies in a developing country.

By using a mainly deductive quantitative design, survey data were collected from senior management of built environment companies in Ghana using questionnaires. The study adopted a mixture of both purposive and snowball sampling approaches. Partial least squares structural equation modelling was used to analyse how the factors within the TOE framework explain BIM-AR adoption in Ghana.

Findings from the study show that the top three factors within the TOE framework that facilitate the adoption of BIM-AR include ICT infrastructure within construction firms; the size of the construction firm, which may influence the financial capacity to accommodate BIM-AR; and competitive pressure. The inhibitors of BIM-AR at the company level included external support and trading partners’ readiness.

Implicit is that the significant factors will be useful to policymakers and companies in developing programs that appeal to non-adopters to aid in mitigating their challenges and further enhance BIM-AR adoption.

The value of this paper has been the use of the theoretical framework TOE to explain the adoption factors of BIM-AR in the Ghanaian construction industry. The originality of the paper is further anchored in consideration of BIM-AR, which is quite nascent in emerging countries.

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Using the TOE theoretical framework to study the adoption of BIM-AR in a developing country: the case of Ghana10.1108/JEDT-02-2022-0096Journal of Engineering, Design and Technology2023-02-17© 2023 Emerald Publishing LimitedMichael Nii AddyTitus Ebenezer Ebenezer KwofieDivine Mawutor AgbonaniAdikie E. EssegbeyJournal of Engineering, Design and Technologyahead-of-printahead-of-print2023-02-1710.1108/JEDT-02-2022-0096https://www.emerald.com/insight/content/doi/10.1108/JEDT-02-2022-0096/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2023 Emerald Publishing Limited
Hybrid partial differential elliptical Rubik’s cube algorithm on image security analysishttps://www.emerald.com/insight/content/doi/10.1108/JEDT-02-2022-0098/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestSeveral chaotic system-based encryption techniques have been presented in recent years to protect digital images using cryptography. The challenges of key distribution and administration make symmetric encryption difficult. The purpose of this paper is to address these concerns, the novel hybrid partial differential elliptical Rubik’s cube algorithm is developed in this study as an asymmetric image encryption approach. This novel algorithm generates a random weighted matrix, and uses the masking method on image pixels with Rubik’s cube principle. Security analysis has been conducted, it enhances and increases the reliability of the proposed algorithm against a variety of attacks including statistical and differential attacks. In this light, a differential elliptical model is designed with two phases for image encryption and decryption. A modified image is achieved by rotating and mixing intensities of rows and columns with a masking matrix derived from the key generation technique using a unique approach based on the elliptic curve and Rubik’s cube principle. To evaluate the security level, the proposed algorithm is tested with statistical and differential attacks on a different set of test images with peak signal-to-noise ratio, unified average changed intensity and number of pixel change rate performance metrics. These results proved that the proposed image encryption method is completely reliable and enhances image security during transmission. The elliptic curve–based encryption is hard to break by hackers and adding a Rubik’s cube principle makes it even more complex and nearly impossible to decode. The proposed method provides reduced key size.Hybrid partial differential elliptical Rubik’s cube algorithm on image security analysis
Vamsi Desam, Pradeep Reddy CH
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

Several chaotic system-based encryption techniques have been presented in recent years to protect digital images using cryptography. The challenges of key distribution and administration make symmetric encryption difficult. The purpose of this paper is to address these concerns, the novel hybrid partial differential elliptical Rubik’s cube algorithm is developed in this study as an asymmetric image encryption approach. This novel algorithm generates a random weighted matrix, and uses the masking method on image pixels with Rubik’s cube principle. Security analysis has been conducted, it enhances and increases the reliability of the proposed algorithm against a variety of attacks including statistical and differential attacks.

In this light, a differential elliptical model is designed with two phases for image encryption and decryption. A modified image is achieved by rotating and mixing intensities of rows and columns with a masking matrix derived from the key generation technique using a unique approach based on the elliptic curve and Rubik’s cube principle.

To evaluate the security level, the proposed algorithm is tested with statistical and differential attacks on a different set of test images with peak signal-to-noise ratio, unified average changed intensity and number of pixel change rate performance metrics. These results proved that the proposed image encryption method is completely reliable and enhances image security during transmission.

The elliptic curve–based encryption is hard to break by hackers and adding a Rubik’s cube principle makes it even more complex and nearly impossible to decode. The proposed method provides reduced key size.

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Hybrid partial differential elliptical Rubik’s cube algorithm on image security analysis10.1108/JEDT-02-2022-0098Journal of Engineering, Design and Technology2023-04-20© 2023 Emerald Publishing LimitedVamsi DesamPradeep Reddy CHJournal of Engineering, Design and Technologyahead-of-printahead-of-print2023-04-2010.1108/JEDT-02-2022-0098https://www.emerald.com/insight/content/doi/10.1108/JEDT-02-2022-0098/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2023 Emerald Publishing Limited
Integrating Industry 4.0 and agile new product development practices to evaluate the penetration of sustainable development goals in manufacturing industrieshttps://www.emerald.com/insight/content/doi/10.1108/JEDT-02-2022-0101/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestThe United Nations member countries adopted a set of 17 sustainable development goals (SDGs) to achieve a better and more sustainable future for all. It encourages the use of sustainable practices during new product development (NPD). Competitiveness has put pressure on organizations to maintain their market share and look for new approaches related to NPD. The current study aims to focus on creating a framework that can help to achieve the SDGs by adopting agile new product development (ANPD) practices and Industry 4.0 technologies. From the literature, various ANPD practices, Industry 4.0 technologies, performance metrics, their interconnection and their contribution toward achieving SDGs are extracted. The weights of selected Industry 4.0–ANPD practices are computed by robust best worst method (RBWM), and the Fuzzy-VIKOR method is used to rank the selected performance metrics. To test the robustness of the developed framework, sensitivity analysis is also performed. The results show that among the various Industry 4.0–ANPD practices “Multi-skilled employees” have the highest weight followed by “Customer requirement analysis and prioritization.” Whereas for performance metrics, “The number of innovative products launched per year” is ranked first, with the “Average time between two launches” at second place. This research contributes to the adoption of ANPD practices and Industry 4.0 technologies for the achievement of the business SDGs. The shortlisted Industry 4.0–ANPD practices will help in resolving the social and environmental issues. The set of performance metrics will help practitioners and managers to evaluate the performance of ANPD in the context of business SDGs. This study adds to the understanding related to Industry 4.0–ANPD practices adoption. And to the best of the authors’ knowledge, it is believed that no similar work has been done previously and by using industry insights into technology components, this work contributes to valuable insights into the subject.Integrating Industry 4.0 and agile new product development practices to evaluate the penetration of sustainable development goals in manufacturing industries
Manoj Palsodkar, Gunjan Yadav, Madhukar R. Nagare
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

The United Nations member countries adopted a set of 17 sustainable development goals (SDGs) to achieve a better and more sustainable future for all. It encourages the use of sustainable practices during new product development (NPD). Competitiveness has put pressure on organizations to maintain their market share and look for new approaches related to NPD. The current study aims to focus on creating a framework that can help to achieve the SDGs by adopting agile new product development (ANPD) practices and Industry 4.0 technologies.

From the literature, various ANPD practices, Industry 4.0 technologies, performance metrics, their interconnection and their contribution toward achieving SDGs are extracted. The weights of selected Industry 4.0–ANPD practices are computed by robust best worst method (RBWM), and the Fuzzy-VIKOR method is used to rank the selected performance metrics. To test the robustness of the developed framework, sensitivity analysis is also performed.

The results show that among the various Industry 4.0–ANPD practices “Multi-skilled employees” have the highest weight followed by “Customer requirement analysis and prioritization.” Whereas for performance metrics, “The number of innovative products launched per year” is ranked first, with the “Average time between two launches” at second place.

This research contributes to the adoption of ANPD practices and Industry 4.0 technologies for the achievement of the business SDGs. The shortlisted Industry 4.0–ANPD practices will help in resolving the social and environmental issues. The set of performance metrics will help practitioners and managers to evaluate the performance of ANPD in the context of business SDGs.

This study adds to the understanding related to Industry 4.0–ANPD practices adoption. And to the best of the authors’ knowledge, it is believed that no similar work has been done previously and by using industry insights into technology components, this work contributes to valuable insights into the subject.

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Integrating Industry 4.0 and agile new product development practices to evaluate the penetration of sustainable development goals in manufacturing industries10.1108/JEDT-02-2022-0101Journal of Engineering, Design and Technology2023-02-16© 2023 Emerald Publishing LimitedManoj PalsodkarGunjan YadavMadhukar R. NagareJournal of Engineering, Design and Technologyahead-of-printahead-of-print2023-02-1610.1108/JEDT-02-2022-0101https://www.emerald.com/insight/content/doi/10.1108/JEDT-02-2022-0101/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2023 Emerald Publishing Limited
Conceptual design of a small production plant for eco-friendly packaginghttps://www.emerald.com/insight/content/doi/10.1108/JEDT-02-2022-0118/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestThis paper aims to present the application of a tailored systematic engineering design procedure to the concept design of a small production plant for compostable packaging made by straw fibres and bioplastic. In particular, the obtained boxes are intended to be used for wine bottles. A systematic procedure has been adopted, which underpins on a comprehensive analysis of the design requirements and the function modelling of the process. By considering well-known models of the engineering design process, the work focuses on the early design stages that precede the embodiment design of the whole components of the plant. The followed design approach allowed to preliminarily evaluate different alternatives of the process from a functional point of view, thus allowing to identify the preferred conceptual process solution. Based on the identified functional sequence, a first evaluation of the potential productivity and the required human resources has been performed. The procedure shown in this work has been applied only for the considered case of compostable packaging, and other applications are needed to optimize it. Nevertheless, the adopted systematic approach can be adapted for any context where it is necessary to conceive a new production plant for artefacts made by innovative materials. The work presented in this paper represents one of the few practical examples available in the literature where systematic conceptual design procedures are presented. More specifically, to the best of the authors’ knowledge, this is the very first application of systematic design methods to compostable packaging production.Conceptual design of a small production plant for eco-friendly packaging
Lorenzo Fiorineschi, Leonardo Conti, Giuseppe Rossi, Federico Rotini
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

This paper aims to present the application of a tailored systematic engineering design procedure to the concept design of a small production plant for compostable packaging made by straw fibres and bioplastic. In particular, the obtained boxes are intended to be used for wine bottles.

A systematic procedure has been adopted, which underpins on a comprehensive analysis of the design requirements and the function modelling of the process. By considering well-known models of the engineering design process, the work focuses on the early design stages that precede the embodiment design of the whole components of the plant.

The followed design approach allowed to preliminarily evaluate different alternatives of the process from a functional point of view, thus allowing to identify the preferred conceptual process solution. Based on the identified functional sequence, a first evaluation of the potential productivity and the required human resources has been performed.

The procedure shown in this work has been applied only for the considered case of compostable packaging, and other applications are needed to optimize it. Nevertheless, the adopted systematic approach can be adapted for any context where it is necessary to conceive a new production plant for artefacts made by innovative materials.

The work presented in this paper represents one of the few practical examples available in the literature where systematic conceptual design procedures are presented. More specifically, to the best of the authors’ knowledge, this is the very first application of systematic design methods to compostable packaging production.

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Conceptual design of a small production plant for eco-friendly packaging10.1108/JEDT-02-2022-0118Journal of Engineering, Design and Technology2022-07-21© 2022 Lorenzo Fiorineschi, Leonardo Conti, Giuseppe Rossi and Federico Rotini.Lorenzo FiorineschiLeonardo ContiGiuseppe RossiFederico RotiniJournal of Engineering, Design and Technologyahead-of-printahead-of-print2022-07-2110.1108/JEDT-02-2022-0118https://www.emerald.com/insight/content/doi/10.1108/JEDT-02-2022-0118/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2022 Lorenzo Fiorineschi, Leonardo Conti, Giuseppe Rossi and Federico Rotini.http://creativecommons.org/licences/by/4.0/legalcode
A cloud-based collaborative ecosystem for the automation of BIM execution plan (BEP)https://www.emerald.com/insight/content/doi/10.1108/JEDT-02-2022-0128/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestMaster information delivery plan (MIDP) is a key requirement for building information modelling (BIM) execution plan (BEP) that enlists all information deliverables in BIM-based project, containing information about what would be prepared, when, by who, as well as the procedures and protocols to be used. In a well-conceived BEP, the MIDP facilitates collaboration among stakeholders. However, current approaches to generating MIDP are manual, making it tedious, error-prone and inconsistent, thereby limiting some expected benefits of BIM implementation. The purpose of this study is to automate the MIDP and demonstrate a collaborative BIM system that overcomes the problems associated with the traditional approach. A BIM cloud-based system (named Auto-BIMApp) involving naming that automated MIDP generation is presented. A participatory action research methodology involving academia and industry stakeholders is followed to design and validate the Auto-BIMApp. A mixed-method experiment is conducted to compare the proposed automated generation of MIDP using Auto-BIMApp with the traditional practice of using spreadsheets. The quantitative results show over 500% increased work efficiency, with improved and error-free collaboration among team members through Auto-BIMApp. Moreover, the responses from the participants using Auto-BIMApp during the experiment shows positive feedback in term of ease of use and automated functionalities of the Auto-BIMApp. The replacement of traditional practices to a complete automated collaborative system for the generation of MIDP, with substantial productivity improvement, brings novelty to the present research. The Auto-BIMApp involve multidimensional information, multiple platforms, multiple types and levels of users, and generates three different representations of MIDP.A cloud-based collaborative ecosystem for the automation of BIM execution plan (BEP)
Muhammad Azeem Abbas, Saheed O. Ajayi, Adekunle Sabitu Oyegoke, Hafiz Alaka
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

Master information delivery plan (MIDP) is a key requirement for building information modelling (BIM) execution plan (BEP) that enlists all information deliverables in BIM-based project, containing information about what would be prepared, when, by who, as well as the procedures and protocols to be used. In a well-conceived BEP, the MIDP facilitates collaboration among stakeholders. However, current approaches to generating MIDP are manual, making it tedious, error-prone and inconsistent, thereby limiting some expected benefits of BIM implementation. The purpose of this study is to automate the MIDP and demonstrate a collaborative BIM system that overcomes the problems associated with the traditional approach.

A BIM cloud-based system (named Auto-BIMApp) involving naming that automated MIDP generation is presented. A participatory action research methodology involving academia and industry stakeholders is followed to design and validate the Auto-BIMApp.

A mixed-method experiment is conducted to compare the proposed automated generation of MIDP using Auto-BIMApp with the traditional practice of using spreadsheets. The quantitative results show over 500% increased work efficiency, with improved and error-free collaboration among team members through Auto-BIMApp. Moreover, the responses from the participants using Auto-BIMApp during the experiment shows positive feedback in term of ease of use and automated functionalities of the Auto-BIMApp.

The replacement of traditional practices to a complete automated collaborative system for the generation of MIDP, with substantial productivity improvement, brings novelty to the present research. The Auto-BIMApp involve multidimensional information, multiple platforms, multiple types and levels of users, and generates three different representations of MIDP.

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A cloud-based collaborative ecosystem for the automation of BIM execution plan (BEP)10.1108/JEDT-02-2022-0128Journal of Engineering, Design and Technology2022-08-12© 2022 Emerald Publishing LimitedMuhammad Azeem AbbasSaheed O. AjayiAdekunle Sabitu OyegokeHafiz AlakaJournal of Engineering, Design and Technologyahead-of-printahead-of-print2022-08-1210.1108/JEDT-02-2022-0128https://www.emerald.com/insight/content/doi/10.1108/JEDT-02-2022-0128/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2022 Emerald Publishing Limited
A categorization of factors affecting quality of design documentation in Tanzanian construction projectshttps://www.emerald.com/insight/content/doi/10.1108/JEDT-02-2023-0040/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestThe design documents are products of a process that aims to provide sufficient details to enable the contractor to efficiently implement the project at a realistic cost. Accordingly, it is expected that these design documents must be of high quality to engender the attainment of the desired project objectives. The purpose of this study is to analyze the factors that affect the quality of design documentation in construction projects in the context of a developing country. This study used a descriptive research design involving professionals from firms offering services in areas of design and documentation, mainly architectural, quantity surveying and engineering. A total of 80 out of 84 questionnaires were received and analyzed using IBM SPSS Statistics Version 25, and a factor analysis approach was used to categorize the factors into smaller five groups. The factors were subsequently categorized according to size, time, staff, quality and training-related factors. Collectively, large size of the project, inadequate supervision of junior design staff, low professional fees, procurement process and system, failure to adopt quality management systems and allocation or assigning of staff to more than one project at the same time have high influence (component loading of 700) in respective groups. The reliance on data to analyze the factors of design documents in construction projects in developing economies context, using a Tanzanian exemplar, is considered a limitation. Developing countries with similar economic characteristics, procurement systems and cultural setup could benefit from the results of this study. The study of factors affecting quality of design and documents in construction projects serves as a guide for built environment firms in Tanzania in conducting effective business and ensuring quality design documents, hence improved project performance. Understanding the nature of relationship between the design and construction teams as well as the impact of design documents on project performance is of great importance for the design teams of future projects and other decision-makers to pay attention when preparing design and related documents, especially during design stage of construction projects in developing countries. The study contributes the knowledge by providing useful insights on the subject through a categorization of the factors affecting the quality of design documentation and exploring the nature of relationship between the design and construction teams in construction projects within a previously unexplored Tanzanian context focusing on a traditional procurement system for future improvement of project delivery, hence project success.A categorization of factors affecting quality of design documentation in Tanzanian construction projects
Nyamagere Gladys Sospeter
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

The design documents are products of a process that aims to provide sufficient details to enable the contractor to efficiently implement the project at a realistic cost. Accordingly, it is expected that these design documents must be of high quality to engender the attainment of the desired project objectives. The purpose of this study is to analyze the factors that affect the quality of design documentation in construction projects in the context of a developing country.

This study used a descriptive research design involving professionals from firms offering services in areas of design and documentation, mainly architectural, quantity surveying and engineering. A total of 80 out of 84 questionnaires were received and analyzed using IBM SPSS Statistics Version 25, and a factor analysis approach was used to categorize the factors into smaller five groups.

The factors were subsequently categorized according to size, time, staff, quality and training-related factors. Collectively, large size of the project, inadequate supervision of junior design staff, low professional fees, procurement process and system, failure to adopt quality management systems and allocation or assigning of staff to more than one project at the same time have high influence (component loading of 700) in respective groups.

The reliance on data to analyze the factors of design documents in construction projects in developing economies context, using a Tanzanian exemplar, is considered a limitation. Developing countries with similar economic characteristics, procurement systems and cultural setup could benefit from the results of this study.

The study of factors affecting quality of design and documents in construction projects serves as a guide for built environment firms in Tanzania in conducting effective business and ensuring quality design documents, hence improved project performance. Understanding the nature of relationship between the design and construction teams as well as the impact of design documents on project performance is of great importance for the design teams of future projects and other decision-makers to pay attention when preparing design and related documents, especially during design stage of construction projects in developing countries.

The study contributes the knowledge by providing useful insights on the subject through a categorization of the factors affecting the quality of design documentation and exploring the nature of relationship between the design and construction teams in construction projects within a previously unexplored Tanzanian context focusing on a traditional procurement system for future improvement of project delivery, hence project success.

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A categorization of factors affecting quality of design documentation in Tanzanian construction projects10.1108/JEDT-02-2023-0040Journal of Engineering, Design and Technology2023-07-28© 2023 Emerald Publishing LimitedNyamagere Gladys SospeterJournal of Engineering, Design and Technologyahead-of-printahead-of-print2023-07-2810.1108/JEDT-02-2023-0040https://www.emerald.com/insight/content/doi/10.1108/JEDT-02-2023-0040/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2023 Emerald Publishing Limited
An inquiry into the health and safety management practices of construction firms in South Koreahttps://www.emerald.com/insight/content/doi/10.1108/JEDT-02-2023-0050/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestThis paper aims to investigate the Occupational Safety and Health (OSH) management practices of construction companies in South Korea to ascertain specific components and practices that need improvement for successful OSH performance. A quantitative research strategy was adopted. A close-ended questionnaire survey covering 45 OSH management practices was sent to 324 contractors; 108 responses were gathered, representing a response rate of 33.3%. Data were analysed using simple descriptive statistics (frequencies and percentages) and Pearson’s chi-square test. The findings revealed that there is a moderate level of implementation of OSH management practices among construction firms in South Korea. However, there is a significant disparity in terms of implementation between large enterprises on the one hand and small to medium enterprises on the other. Furthermore, a few of the business characteristics (i.e. the size of companies and certification to OHSAS 18001) were closely associated with the extent of the implementation of OSH management practices. This research uncovers the OSH management practices that are poorly implemented and lays the foundation for appropriate measures to improve OSH in South Korean construction companies. It suggests an effective strategy for communicating health and safety issues to workers, training safety managers, reviewing risk assessments, reviewing the health and safety plan, incentivising workers by rewarding good behaviour and having a penal mechanism for employees not adhering to the rules. The study provides insights into an under-investigated South Korean construction industry topic. It offers additional insight into state-of-the-art health and safety management practices in the construction industry in South Korea. Furthermore, it establishes which components of OSH management practice require improvement in the Korean context. This is also one of the few studies in OSH which establishes the association between the construction business characteristics and OSH management in the South Korean construction domain.An inquiry into the health and safety management practices of construction firms in South Korea
Taeho Park, Abdul-Majeed Mahamadu, Kofi Agyekum, Anita Odame Adade-Boateng, Patrick Manu, Emmanuel Adinyira, Selorm Adukpo
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

This paper aims to investigate the Occupational Safety and Health (OSH) management practices of construction companies in South Korea to ascertain specific components and practices that need improvement for successful OSH performance.

A quantitative research strategy was adopted. A close-ended questionnaire survey covering 45 OSH management practices was sent to 324 contractors; 108 responses were gathered, representing a response rate of 33.3%. Data were analysed using simple descriptive statistics (frequencies and percentages) and Pearson’s chi-square test.

The findings revealed that there is a moderate level of implementation of OSH management practices among construction firms in South Korea. However, there is a significant disparity in terms of implementation between large enterprises on the one hand and small to medium enterprises on the other. Furthermore, a few of the business characteristics (i.e. the size of companies and certification to OHSAS 18001) were closely associated with the extent of the implementation of OSH management practices.

This research uncovers the OSH management practices that are poorly implemented and lays the foundation for appropriate measures to improve OSH in South Korean construction companies. It suggests an effective strategy for communicating health and safety issues to workers, training safety managers, reviewing risk assessments, reviewing the health and safety plan, incentivising workers by rewarding good behaviour and having a penal mechanism for employees not adhering to the rules.

The study provides insights into an under-investigated South Korean construction industry topic. It offers additional insight into state-of-the-art health and safety management practices in the construction industry in South Korea. Furthermore, it establishes which components of OSH management practice require improvement in the Korean context. This is also one of the few studies in OSH which establishes the association between the construction business characteristics and OSH management in the South Korean construction domain.

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An inquiry into the health and safety management practices of construction firms in South Korea10.1108/JEDT-02-2023-0050Journal of Engineering, Design and Technology2023-07-11© 2023 Emerald Publishing LimitedTaeho ParkAbdul-Majeed MahamaduKofi AgyekumAnita Odame Adade-BoatengPatrick ManuEmmanuel AdinyiraSelorm AdukpoJournal of Engineering, Design and Technologyahead-of-printahead-of-print2023-07-1110.1108/JEDT-02-2023-0050https://www.emerald.com/insight/content/doi/10.1108/JEDT-02-2023-0050/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2023 Emerald Publishing Limited
A multi-response optimization approach to mechanical properties improvement of dissimilar resistance spot welding jointshttps://www.emerald.com/insight/content/doi/10.1108/JEDT-02-2023-0062/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestThis study aims to investigate the effects of process input parameters (welding current, welding time, electrode pressure and holding time) on the output responses (nugget diameter, peak load and indentation) that control the mechanical properties and quality of the joints in dissimilar resistance spot welding (RSW) for the third generation of advanced high-strength steel (AHSS) quenching and partitioning (Q&P980) and (SPFC780Y) high-strength steel spot welds. Design of experiment approach with two level factors and center points was adopted. Destructive peel and shear tensile strengths were used to measure the responses. The significant factors were determined using analysis of variance implemented by Minitab 18 software. Finally, multiresponse optimization was carried out using the desirability function analysis method. Holding time was the most significant factor influencing nugget diameter, whereas welding current had the greatest impact on peak load and indentation. Multiresponse optimization revealed that the optimal settings were a welding current of 12.5 KA, welding time of 18 cycles, electrode pressure of 420 Kgf and holding time of 10 cycles. These settings produced a nugget diameter of 8.0 mm, a peak load of 35.15 KN and an indentation of 22.5%, with a composite desirability function of 0.764. This study provides an effective approach for multiple response optimization to the mechanical behavior of RSW joints, even though there have been few studies on the third generation of AHSS joints and none on the dissimilar joints of the materials used in this study.A multi-response optimization approach to mechanical properties improvement of dissimilar resistance spot welding joints
Karrar Hussein, Habibollah Akbari, Rassoul Noorossana, Rostom Yadegari
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

This study aims to investigate the effects of process input parameters (welding current, welding time, electrode pressure and holding time) on the output responses (nugget diameter, peak load and indentation) that control the mechanical properties and quality of the joints in dissimilar resistance spot welding (RSW) for the third generation of advanced high-strength steel (AHSS) quenching and partitioning (Q&P980) and (SPFC780Y) high-strength steel spot welds.

Design of experiment approach with two level factors and center points was adopted. Destructive peel and shear tensile strengths were used to measure the responses. The significant factors were determined using analysis of variance implemented by Minitab 18 software. Finally, multiresponse optimization was carried out using the desirability function analysis method.

Holding time was the most significant factor influencing nugget diameter, whereas welding current had the greatest impact on peak load and indentation. Multiresponse optimization revealed that the optimal settings were a welding current of 12.5 KA, welding time of 18 cycles, electrode pressure of 420 Kgf and holding time of 10 cycles. These settings produced a nugget diameter of 8.0 mm, a peak load of 35.15 KN and an indentation of 22.5%, with a composite desirability function of 0.764.

This study provides an effective approach for multiple response optimization to the mechanical behavior of RSW joints, even though there have been few studies on the third generation of AHSS joints and none on the dissimilar joints of the materials used in this study.

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A multi-response optimization approach to mechanical properties improvement of dissimilar resistance spot welding joints10.1108/JEDT-02-2023-0062Journal of Engineering, Design and Technology2023-09-11© 2023 Emerald Publishing LimitedKarrar HusseinHabibollah AkbariRassoul NoorossanaRostom YadegariJournal of Engineering, Design and Technologyahead-of-printahead-of-print2023-09-1110.1108/JEDT-02-2023-0062https://www.emerald.com/insight/content/doi/10.1108/JEDT-02-2023-0062/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2023 Emerald Publishing Limited
Principal factor analysis of project designers’ roles in improving construction projects buildability in Nigeriahttps://www.emerald.com/insight/content/doi/10.1108/JEDT-02-2023-0067/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestConstruction industry is a vital sector for economic and national development. However, the industry suffers buildability problems. Improving construction projects buildability is the duty of every key stakeholder. Thus, this study aims to identify and evaluate the project designers’ roles in improving construction projects buildability in Nigeria. This study adopted quantitative research method. A purposive sampling approach was used in identifying the representative sample for the administration of the questionnaire survey. A total of 122 questionnaires were distributed to the targeted construction professionals, out of which 93 questionnaires were sufficiently filled and returned, representing a response rate of 76%. This study used descriptive and inferential statistics for data analyses. The results from factors analysis show that the roles of project designers in improving construction projects buildability in Nigeria can be categorised into two constructs: “discuss fully the design objectives with builders” and “prepare cost effective and buildable designs”. This study contributed to more effective buildability studies by highlighting the roles of project designers in improving construction projects buildability in the construction industry. An understanding of these roles is vital for reducing buildability problems as well as for improving and embedding buildability as a practice in construction management.Principal factor analysis of project designers’ roles in improving construction projects buildability in Nigeria
Innocent Chigozie Osuizugbo, Anthony Ogochukwu Onokwai, Oluyemi Oladeji Faleti
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

Construction industry is a vital sector for economic and national development. However, the industry suffers buildability problems. Improving construction projects buildability is the duty of every key stakeholder. Thus, this study aims to identify and evaluate the project designers’ roles in improving construction projects buildability in Nigeria.

This study adopted quantitative research method. A purposive sampling approach was used in identifying the representative sample for the administration of the questionnaire survey. A total of 122 questionnaires were distributed to the targeted construction professionals, out of which 93 questionnaires were sufficiently filled and returned, representing a response rate of 76%. This study used descriptive and inferential statistics for data analyses.

The results from factors analysis show that the roles of project designers in improving construction projects buildability in Nigeria can be categorised into two constructs: “discuss fully the design objectives with builders” and “prepare cost effective and buildable designs”.

This study contributed to more effective buildability studies by highlighting the roles of project designers in improving construction projects buildability in the construction industry. An understanding of these roles is vital for reducing buildability problems as well as for improving and embedding buildability as a practice in construction management.

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Principal factor analysis of project designers’ roles in improving construction projects buildability in Nigeria10.1108/JEDT-02-2023-0067Journal of Engineering, Design and Technology2023-05-16© 2023 Emerald Publishing LimitedInnocent Chigozie OsuizugboAnthony Ogochukwu OnokwaiOluyemi Oladeji FaletiJournal of Engineering, Design and Technologyahead-of-printahead-of-print2023-05-1610.1108/JEDT-02-2023-0067https://www.emerald.com/insight/content/doi/10.1108/JEDT-02-2023-0067/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2023 Emerald Publishing Limited
Combined wind catchers and side windows for cross ventilation in row houseshttps://www.emerald.com/insight/content/doi/10.1108/JEDT-02-2023-0079/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestThis paper aims to explore the efficiency of natural ventilation in the bedrooms of typical two-storeyed row houses with newly reconfigured design that incorporate rooftop wind catchers and side windows to create cross ventilation. A CFD program was used to assess average air velocity coefficient (Cv) in 32 airflow cases. Parameters include location of openings with respect to wind direction, inlet-to-outlet area ratio (IOR) and opening-to-floor area ratio (OFR). The results reveal that indoor air velocities in the cases of air entering wind catchers are generally higher than those in the cases of air entering side windows while air velocities at the openings are the opposite. The IOR of 1:2 provides best results in terms of both velocities of the indoor air and velocities at the openings. Increasing the OFR from 20% to 50% generally improves indoor air velocities and airflow rates. This study proved that the new solution of combining one-sided wind catchers and side windows can effectively solve the problem of ventilation uniquely existing in the conditions of typical row houses by catching prevailing wind from two opposite directions into multiple rooms. The results are given as non-dimensional air velocities, which can be interpreted with any climatic data, and therefore can be applied to row houses in any locations and climatic conditions. The findings can create a new and efficient design of row houses that benefits building industry.Combined wind catchers and side windows for cross ventilation in row houses
Chalermwat Tantasavasdi, Senatanit Arttamart, Natthaumporn Inprom
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

This paper aims to explore the efficiency of natural ventilation in the bedrooms of typical two-storeyed row houses with newly reconfigured design that incorporate rooftop wind catchers and side windows to create cross ventilation.

A CFD program was used to assess average air velocity coefficient (Cv) in 32 airflow cases. Parameters include location of openings with respect to wind direction, inlet-to-outlet area ratio (IOR) and opening-to-floor area ratio (OFR).

The results reveal that indoor air velocities in the cases of air entering wind catchers are generally higher than those in the cases of air entering side windows while air velocities at the openings are the opposite. The IOR of 1:2 provides best results in terms of both velocities of the indoor air and velocities at the openings. Increasing the OFR from 20% to 50% generally improves indoor air velocities and airflow rates.

This study proved that the new solution of combining one-sided wind catchers and side windows can effectively solve the problem of ventilation uniquely existing in the conditions of typical row houses by catching prevailing wind from two opposite directions into multiple rooms. The results are given as non-dimensional air velocities, which can be interpreted with any climatic data, and therefore can be applied to row houses in any locations and climatic conditions. The findings can create a new and efficient design of row houses that benefits building industry.

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Combined wind catchers and side windows for cross ventilation in row houses10.1108/JEDT-02-2023-0079Journal of Engineering, Design and Technology2024-01-02© 2023 Emerald Publishing LimitedChalermwat TantasavasdiSenatanit ArttamartNatthaumporn InpromJournal of Engineering, Design and Technologyahead-of-printahead-of-print2024-01-0210.1108/JEDT-02-2023-0079https://www.emerald.com/insight/content/doi/10.1108/JEDT-02-2023-0079/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2023 Emerald Publishing Limited
Impeller in suction pipe Thai Phaya-Nakh for agriculturehttps://www.emerald.com/insight/content/doi/10.1108/JEDT-03-2021-0173/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestThe suction pipes are important in agriculture and are used widely in water management and agricultural–mechanical industry in ASEAN. Thus, this paper aims to present design of new impeller in suction pipe and include shape blade impeller to optimize for suction head, which has been higher than efficiency local-type by the performance. It mostly depends on the hydrodynamic characteristics, e.g. lift, drag and ratio, which is known as the “Thai Phaya-Nakh pipe”. By approach NACA methodology and use applied technique: leading edge of blade, skew-line, cambered-line, developed area and advanced number etc., for analyzing data which the result of CFD simulation. The models were tested in field by using motor at rotation speed 1500 rpm and found that the summarized average suction efficiency of the new impeller was estimated to be 72%, which has been greater than that of the local-type impeller with an average suction efficiency of 28% to 2.6 times. In addition, the amount of required electrical energy was reduced by 18%. Then after analyzing the data from the static pressure distribution flow rate of impeller models, it is found that the new curved impeller has higher flow rate than the local type impeller. Thus, this study suggests the shape new impeller has higher flow rate than the local type impeller.Impeller in suction pipe Thai Phaya-Nakh for agriculture
Jaruphant Noosomton
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

The suction pipes are important in agriculture and are used widely in water management and agricultural–mechanical industry in ASEAN. Thus, this paper aims to present design of new impeller in suction pipe and include shape blade impeller to optimize for suction head, which has been higher than efficiency local-type by the performance. It mostly depends on the hydrodynamic characteristics, e.g. lift, drag and ratio, which is known as the “Thai Phaya-Nakh pipe”.

By approach NACA methodology and use applied technique: leading edge of blade, skew-line, cambered-line, developed area and advanced number etc., for analyzing data which the result of CFD simulation.

The models were tested in field by using motor at rotation speed 1500 rpm and found that the summarized average suction efficiency of the new impeller was estimated to be 72%, which has been greater than that of the local-type impeller with an average suction efficiency of 28% to 2.6 times. In addition, the amount of required electrical energy was reduced by 18%.

Then after analyzing the data from the static pressure distribution flow rate of impeller models, it is found that the new curved impeller has higher flow rate than the local type impeller. Thus, this study suggests the shape new impeller has higher flow rate than the local type impeller.

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Impeller in suction pipe Thai Phaya-Nakh for agriculture10.1108/JEDT-03-2021-0173Journal of Engineering, Design and Technology2021-07-31© 2021 Emerald Publishing LimitedJaruphant NoosomtonJournal of Engineering, Design and Technologyahead-of-printahead-of-print2021-07-3110.1108/JEDT-03-2021-0173https://www.emerald.com/insight/content/doi/10.1108/JEDT-03-2021-0173/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2021 Emerald Publishing Limited
Composite sandwich structures: review of manufacturing techniqueshttps://www.emerald.com/insight/content/doi/10.1108/JEDT-03-2022-0141/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestThe purpose of this review paper is to provide a review of the most recent advances in the field of manufacturing composite sandwich panels along with their advantages and limitations. The other purpose of this paper is to familiarize the researchers with the available developments in manufacturing sandwich structures. The most recent research articles in the field of manufacturing various composite sandwich structures were reviewed. The review process started by categorizing the available sandwich manufacturing techniques into nine main categories according to the method of production and the equipment used. The review is followed by outlining some automatic production concepts toward composite sandwich automated manufacturing. A brief summary of the sandwich manufacturing techniques is given at the end of this article, with recommendations for future work. It has been found that several composite sandwich manufacturing techniques were proposed in the literature. The diversity of the manufacturing techniques arises from the variety of the materials as well as the configurations of the final product. Additive manufacturing techniques represent the most recent trend in composite sandwich manufacturing. This work is valuable for all researchers in the field of composite sandwich structures to keep up with the most recent advancements in this field. Furthermore, this review paper can be considered as a guideline for researchers who are intended to perform further research on composite sandwich structures.Composite sandwich structures: review of manufacturing techniques
Mustafa S. Al-Khazraji, S.H. Bakhy, M.J. Jweeg
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

The purpose of this review paper is to provide a review of the most recent advances in the field of manufacturing composite sandwich panels along with their advantages and limitations. The other purpose of this paper is to familiarize the researchers with the available developments in manufacturing sandwich structures.

The most recent research articles in the field of manufacturing various composite sandwich structures were reviewed. The review process started by categorizing the available sandwich manufacturing techniques into nine main categories according to the method of production and the equipment used. The review is followed by outlining some automatic production concepts toward composite sandwich automated manufacturing. A brief summary of the sandwich manufacturing techniques is given at the end of this article, with recommendations for future work.

It has been found that several composite sandwich manufacturing techniques were proposed in the literature. The diversity of the manufacturing techniques arises from the variety of the materials as well as the configurations of the final product. Additive manufacturing techniques represent the most recent trend in composite sandwich manufacturing.

This work is valuable for all researchers in the field of composite sandwich structures to keep up with the most recent advancements in this field. Furthermore, this review paper can be considered as a guideline for researchers who are intended to perform further research on composite sandwich structures.

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Composite sandwich structures: review of manufacturing techniques10.1108/JEDT-03-2022-0141Journal of Engineering, Design and Technology2023-01-02© 2022 Emerald Publishing LimitedMustafa S. Al-KhazrajiS.H. BakhyM.J. JweegJournal of Engineering, Design and Technologyahead-of-printahead-of-print2023-01-0210.1108/JEDT-03-2022-0141https://www.emerald.com/insight/content/doi/10.1108/JEDT-03-2022-0141/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2022 Emerald Publishing Limited
Optimization of specific energy consumption in CNC turning of a hardened alloy steel roll at low cutting speedshttps://www.emerald.com/insight/content/doi/10.1108/JEDT-03-2023-0088/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestThis study was conducted to analyze the effects of machining parameters on the specific energy consumption in the computerized numerical control lathe turning operation of a hardened alloy steel roll at low cutting speeds. The aim was to minimize its consumption. The design matrix was based on three variable factors at three levels. Response surface methodology was used for the analysis of experimental results. Optimization was carried out by using the desirability function and genetic algorithm. A multiple regression model was used for relationship build-up. According to desirability function, genetic algorithm and multiple regression analysis, optimal machining parameters were cutting speed 40 m/min, feed 0.2 mm/rev and depth of cut 0.50 mm, which resulted in minimal specific energy consumption of 0.78, 0.772 and 0.78 kJ/mm3, respectively. Correlation analysis and multiple regression model found a quadratic relationship between specific energy consumption with power consumption and material removal rate. In the past, many researchers have developed mathematical models for specific energy consumption, but these models were developed at high cutting speed, and a majority of the models were based on the material removal rate as the independent variable. This research work developed a mathematical model based on the machining parameters as an independent variable at low cutting speeds, for a new type of large-sized hardened alloy steel roll. A multiple regression model was developed to build a quadratic relationship of specific energy consumption with power consumption and material removal rate. This work has a practical application in hot rolling industry.Optimization of specific energy consumption in CNC turning of a hardened alloy steel roll at low cutting speeds
Kashif Noor, Mubashir Ali Siddiqui, Amir Iqbal Syed
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

This study was conducted to analyze the effects of machining parameters on the specific energy consumption in the computerized numerical control lathe turning operation of a hardened alloy steel roll at low cutting speeds. The aim was to minimize its consumption.

The design matrix was based on three variable factors at three levels. Response surface methodology was used for the analysis of experimental results. Optimization was carried out by using the desirability function and genetic algorithm. A multiple regression model was used for relationship build-up.

According to desirability function, genetic algorithm and multiple regression analysis, optimal machining parameters were cutting speed 40 m/min, feed 0.2 mm/rev and depth of cut 0.50 mm, which resulted in minimal specific energy consumption of 0.78, 0.772 and 0.78 kJ/mm3, respectively. Correlation analysis and multiple regression model found a quadratic relationship between specific energy consumption with power consumption and material removal rate.

In the past, many researchers have developed mathematical models for specific energy consumption, but these models were developed at high cutting speed, and a majority of the models were based on the material removal rate as the independent variable. This research work developed a mathematical model based on the machining parameters as an independent variable at low cutting speeds, for a new type of large-sized hardened alloy steel roll. A multiple regression model was developed to build a quadratic relationship of specific energy consumption with power consumption and material removal rate. This work has a practical application in hot rolling industry.

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Optimization of specific energy consumption in CNC turning of a hardened alloy steel roll at low cutting speeds10.1108/JEDT-03-2023-0088Journal of Engineering, Design and Technology2023-07-26© 2023 Emerald Publishing LimitedKashif NoorMubashir Ali SiddiquiAmir Iqbal SyedJournal of Engineering, Design and Technologyahead-of-printahead-of-print2023-07-2610.1108/JEDT-03-2023-0088https://www.emerald.com/insight/content/doi/10.1108/JEDT-03-2023-0088/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2023 Emerald Publishing Limited
Challenges, drivers and incentives to private sector participation in public-private partnership projects in developing countries: evidence from Zambiahttps://www.emerald.com/insight/content/doi/10.1108/JEDT-03-2023-0092/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestGovernments in developing countries seeking to meet their infrastructure backlog are increasingly turning to public–private partnerships (PPP) due to a lack of public funds. However, while there are factors which drive the current uptake of projects, there are challenges with attracting private finance, and it is not clear what incentives can be used to attract more private participation, especially in sub-Saharan Africa (SSA). Therefore, this study aims to examine challenges, drivers and incentives that affect private participation in PPP projects in Zambia. The study used a qualitative approach with semi-structured interviews with participants who had first-hand experience working on the administration of PPP projects. The participants were predominantly from the public sector, and so the results are largely a public sector perspective on the matter. The findings show that bureaucracy and a poor business environment emanating from poor policies, long procedures and a poor economic environment are the main challenges affecting PPP projects. The current demand for the projects is being driven by a stable business and economic environment while incentives include enhancing the business environment by improving procedures and policies. The study contributes to extant literature by proposing an overarching theory about the challenges affecting the implementation of PPP projects in Zambia, in particular, and in SSA, in general. The results show areas where governments and government agencies responsible for PPP projects can focus attention to promote private participation.Challenges, drivers and incentives to private sector participation in public-private partnership projects in developing countries: evidence from Zambia
Ephraim Zulu, Josephine Mutwale, Sambo Lyson Zulu, Innocent Musonda, Neema Kavishe, Cletus Moobela
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

Governments in developing countries seeking to meet their infrastructure backlog are increasingly turning to public–private partnerships (PPP) due to a lack of public funds. However, while there are factors which drive the current uptake of projects, there are challenges with attracting private finance, and it is not clear what incentives can be used to attract more private participation, especially in sub-Saharan Africa (SSA). Therefore, this study aims to examine challenges, drivers and incentives that affect private participation in PPP projects in Zambia.

The study used a qualitative approach with semi-structured interviews with participants who had first-hand experience working on the administration of PPP projects. The participants were predominantly from the public sector, and so the results are largely a public sector perspective on the matter.

The findings show that bureaucracy and a poor business environment emanating from poor policies, long procedures and a poor economic environment are the main challenges affecting PPP projects. The current demand for the projects is being driven by a stable business and economic environment while incentives include enhancing the business environment by improving procedures and policies.

The study contributes to extant literature by proposing an overarching theory about the challenges affecting the implementation of PPP projects in Zambia, in particular, and in SSA, in general. The results show areas where governments and government agencies responsible for PPP projects can focus attention to promote private participation.

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Challenges, drivers and incentives to private sector participation in public-private partnership projects in developing countries: evidence from Zambia10.1108/JEDT-03-2023-0092Journal of Engineering, Design and Technology2023-07-11© 2023 Emerald Publishing LimitedEphraim ZuluJosephine MutwaleSambo Lyson ZuluInnocent MusondaNeema KavisheCletus MoobelaJournal of Engineering, Design and Technologyahead-of-printahead-of-print2023-07-1110.1108/JEDT-03-2023-0092https://www.emerald.com/insight/content/doi/10.1108/JEDT-03-2023-0092/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2023 Emerald Publishing Limited
An analysis of BIM-related job requirements based on text mining in Chinahttps://www.emerald.com/insight/content/doi/10.1108/JEDT-03-2023-0094/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestAlthough building information modeling (BIM) has brought competitive advantages and many new jobs, the BIM-related job market is still confusing in China, which will undermine the adoption of BIM. This paper aims to show what kinds of BIM-related jobs are there in China, what employers require and whether all BIM engineers are the same kind. A text mining approach, structural topic model, was used to process the job descriptions of 1,221 BIM-related online job advertisements in China, followed by a cluster analysis based on it. First, 10 topics of requirements with the impact of experience and educational background to them were found, namely, rendering software, international project, design, management, personal quality, experience, modeling, relation and certificate. Then, six types were clustered, namely, BIM modeler, BIM application engineer, BIM consultant, BIM manager, BIM developer and BIM designer. Finally, different kinds of BIM engineers proved this title was an expediency leading to confusion. This paper can provide a clear and insightful look into the confusing and unheeded BIM-related job market in China and might help to cope with the abuse of job titles. It could also benefit both employers and candidates in their recruitment for better matching.An analysis of BIM-related job requirements based on text mining in China
Jiahao Liu, Xi Xu, Jing Liu
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

Although building information modeling (BIM) has brought competitive advantages and many new jobs, the BIM-related job market is still confusing in China, which will undermine the adoption of BIM. This paper aims to show what kinds of BIM-related jobs are there in China, what employers require and whether all BIM engineers are the same kind.

A text mining approach, structural topic model, was used to process the job descriptions of 1,221 BIM-related online job advertisements in China, followed by a cluster analysis based on it.

First, 10 topics of requirements with the impact of experience and educational background to them were found, namely, rendering software, international project, design, management, personal quality, experience, modeling, relation and certificate. Then, six types were clustered, namely, BIM modeler, BIM application engineer, BIM consultant, BIM manager, BIM developer and BIM designer. Finally, different kinds of BIM engineers proved this title was an expediency leading to confusion.

This paper can provide a clear and insightful look into the confusing and unheeded BIM-related job market in China and might help to cope with the abuse of job titles. It could also benefit both employers and candidates in their recruitment for better matching.

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An analysis of BIM-related job requirements based on text mining in China10.1108/JEDT-03-2023-0094Journal of Engineering, Design and Technology2023-05-31© 2023 Emerald Publishing LimitedJiahao LiuXi XuJing LiuJournal of Engineering, Design and Technologyahead-of-printahead-of-print2023-05-3110.1108/JEDT-03-2023-0094https://www.emerald.com/insight/content/doi/10.1108/JEDT-03-2023-0094/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2023 Emerald Publishing Limited
A hybrid machine learning approach for early cost estimation of pile foundationshttps://www.emerald.com/insight/content/doi/10.1108/JEDT-03-2023-0097/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestThis study aims at proposing a hybrid model for early cost prediction of a construction project. Early cost prediction for a construction project is the basic approach to procure a project within a predefined budget. However, most of the projects routinely face the impact of cost overruns. Furthermore, conventional and manual cost computing techniques are hectic, time-consuming and error-prone. To deal with such challenges, soft computing techniques such as artificial neural networks (ANNs), fuzzy logic and genetic algorithms are applied in construction management. Each technique has its own constraints not only in terms of efficiency but also in terms of feasibility, practicability, reliability and environmental impacts. However, appropriate combination of the techniques improves the model owing to their inherent nature. This paper proposes a hybrid model by combining machine learning (ML) techniques with ANN to accurately predict the cost of pile foundations. The parameters contributing toward the cost of pile foundations were collected from five different projects in India. Out of 180 collected data entries, 176 entries were finally used after data cleaning. About 70% of the final data were used for building the model and the remaining 30% were used for validation. The proposed model is capable of predicting the pile foundation costs with an accuracy of 97.42%. Although various cost estimation techniques are available, appropriate use and combination of various ML techniques aid in improving the prediction accuracy. The proposed model will be a value addition to cost estimation of pile foundations.A hybrid machine learning approach for early cost estimation of pile foundations
G. Deepa, A.J. Niranjana, A.S. Balu
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

This study aims at proposing a hybrid model for early cost prediction of a construction project. Early cost prediction for a construction project is the basic approach to procure a project within a predefined budget. However, most of the projects routinely face the impact of cost overruns. Furthermore, conventional and manual cost computing techniques are hectic, time-consuming and error-prone. To deal with such challenges, soft computing techniques such as artificial neural networks (ANNs), fuzzy logic and genetic algorithms are applied in construction management. Each technique has its own constraints not only in terms of efficiency but also in terms of feasibility, practicability, reliability and environmental impacts. However, appropriate combination of the techniques improves the model owing to their inherent nature.

This paper proposes a hybrid model by combining machine learning (ML) techniques with ANN to accurately predict the cost of pile foundations. The parameters contributing toward the cost of pile foundations were collected from five different projects in India. Out of 180 collected data entries, 176 entries were finally used after data cleaning. About 70% of the final data were used for building the model and the remaining 30% were used for validation.

The proposed model is capable of predicting the pile foundation costs with an accuracy of 97.42%.

Although various cost estimation techniques are available, appropriate use and combination of various ML techniques aid in improving the prediction accuracy. The proposed model will be a value addition to cost estimation of pile foundations.

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A hybrid machine learning approach for early cost estimation of pile foundations10.1108/JEDT-03-2023-0097Journal of Engineering, Design and Technology2023-06-13© 2023 Emerald Publishing LimitedG. DeepaA.J. NiranjanaA.S. BaluJournal of Engineering, Design and Technologyahead-of-printahead-of-print2023-06-1310.1108/JEDT-03-2023-0097https://www.emerald.com/insight/content/doi/10.1108/JEDT-03-2023-0097/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2023 Emerald Publishing Limited
Exploring stationary and major modular construction challenges in developing countries: a case study of Egypthttps://www.emerald.com/insight/content/doi/10.1108/JEDT-03-2023-0099/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestThis study aims to identify the most significant barriers and the stationary barrier to modular construction (MC) implementation and promote MC widespread use. By doing so, the construction industry can leverage the benefits of MC, such as faster construction times, improved quality control, reduced waste and increased sustainability. This study uses a Gini’s mean analysis approach to identify the stationary barriers hindering the MC adoption in residential projects. The research focuses on the Egyptian context and uses a questionnaire survey to gather data from professionals in the construction industry. According to the survey findings, the top five significant MC barriers are inability to modify the design; contractors asking for high bidding prices (higher initial cost); scepticism, conservation and resistance of clients to innovation and change; transportation restrictions; and lack of a one-size-fits-all tool for the design. In addition, Gini’s mean of dispersion demonstrated that the stationary barrier that faces MC adoption is the apprehension that architectural creativity will suffer because of MC. The identified obstacles could be useful for decision makers in countries that have not yet adopted MC and may aid in the planning process to manage the risks associated with MC projects. The paper stresses the significance of devising techniques to overcome these barriers and proposes several methods to tackle these challenges. This study fills the knowledge gap by identifying the stationary barrier and emphasising the potential risks associated with MC barriers. Furthermore, it suggests several strategies for overcoming and reducing these barriers in developing countries residential projects.Exploring stationary and major modular construction challenges in developing countries: a case study of Egypt
Ali Hassan Ali, Ahmed Farouk Kineber, Ahmed Elyamany, Ahmed Hussein Ibrahim, Ahmed Osama Daoud
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

This study aims to identify the most significant barriers and the stationary barrier to modular construction (MC) implementation and promote MC widespread use. By doing so, the construction industry can leverage the benefits of MC, such as faster construction times, improved quality control, reduced waste and increased sustainability.

This study uses a Gini’s mean analysis approach to identify the stationary barriers hindering the MC adoption in residential projects. The research focuses on the Egyptian context and uses a questionnaire survey to gather data from professionals in the construction industry.

According to the survey findings, the top five significant MC barriers are inability to modify the design; contractors asking for high bidding prices (higher initial cost); scepticism, conservation and resistance of clients to innovation and change; transportation restrictions; and lack of a one-size-fits-all tool for the design. In addition, Gini’s mean of dispersion demonstrated that the stationary barrier that faces MC adoption is the apprehension that architectural creativity will suffer because of MC.

The identified obstacles could be useful for decision makers in countries that have not yet adopted MC and may aid in the planning process to manage the risks associated with MC projects. The paper stresses the significance of devising techniques to overcome these barriers and proposes several methods to tackle these challenges.

This study fills the knowledge gap by identifying the stationary barrier and emphasising the potential risks associated with MC barriers. Furthermore, it suggests several strategies for overcoming and reducing these barriers in developing countries residential projects.

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Exploring stationary and major modular construction challenges in developing countries: a case study of Egypt10.1108/JEDT-03-2023-0099Journal of Engineering, Design and Technology2023-08-29© 2023 Emerald Publishing LimitedAli Hassan AliAhmed Farouk KineberAhmed ElyamanyAhmed Hussein IbrahimAhmed Osama DaoudJournal of Engineering, Design and Technologyahead-of-printahead-of-print2023-08-2910.1108/JEDT-03-2023-0099https://www.emerald.com/insight/content/doi/10.1108/JEDT-03-2023-0099/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2023 Emerald Publishing Limited
Mechanical and microstructural characteristics of structural concrete containing RCA treated with sodium metasilicatehttps://www.emerald.com/insight/content/doi/10.1108/JEDT-03-2023-0109/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestOne of the most contested and anticipated research issues is the acceptability of using recycled aggregates instead of fresh aggregates. This study aims to look at the possibility of replacing fresh aggregates with 15%, 30%, 60% and 100% recycled aggregates. The research is divided into two stages. The compressive, split tensile, flexural and bond strength of the various mixes were examined in the first phase using untreated recycled concrete aggregates (RCA). The second phase entails chemically treating RCA with a 10% 0.1 M sodium metasilicate solution to evaluate differences in strength, indicating the success of the treatment performed. Microstructural experiments such as scanning electron microscopy and X-ray diffraction were also conducted to evaluate the formation of interfacial transition zone (ITZ) in treated and untreated RCA specimens. The observed findings reveal a decrease in concrete strength with increasing RCA concentration; however, when treated RCA was used, the strengths increased significantly when compared to untreated samples. The findings also include curves indicating the correlation between compressive strength and other mechanical strength parameters for an optimum mix of concrete prepared with 30% RCA replacement. The study through its novel approach, demonstrates the effect of pretreatment of RCA in the absence of any standardized chemical treatment methodology and presents significant potential in minimizing reliance on fresh aggregates used in concrete, lowering building costs and promoting the use of waste materials in construction.Mechanical and microstructural characteristics of structural concrete containing RCA treated with sodium metasilicate
Shubham Bansal, Lokesh Choudhary, Megha Kalra, Niragi Dave, Anil Kumar Sharma
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

One of the most contested and anticipated research issues is the acceptability of using recycled aggregates instead of fresh aggregates. This study aims to look at the possibility of replacing fresh aggregates with 15%, 30%, 60% and 100% recycled aggregates.

The research is divided into two stages. The compressive, split tensile, flexural and bond strength of the various mixes were examined in the first phase using untreated recycled concrete aggregates (RCA). The second phase entails chemically treating RCA with a 10% 0.1 M sodium metasilicate solution to evaluate differences in strength, indicating the success of the treatment performed. Microstructural experiments such as scanning electron microscopy and X-ray diffraction were also conducted to evaluate the formation of interfacial transition zone (ITZ) in treated and untreated RCA specimens.

The observed findings reveal a decrease in concrete strength with increasing RCA concentration; however, when treated RCA was used, the strengths increased significantly when compared to untreated samples. The findings also include curves indicating the correlation between compressive strength and other mechanical strength parameters for an optimum mix of concrete prepared with 30% RCA replacement.

The study through its novel approach, demonstrates the effect of pretreatment of RCA in the absence of any standardized chemical treatment methodology and presents significant potential in minimizing reliance on fresh aggregates used in concrete, lowering building costs and promoting the use of waste materials in construction.

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Mechanical and microstructural characteristics of structural concrete containing RCA treated with sodium metasilicate10.1108/JEDT-03-2023-0109Journal of Engineering, Design and Technology2023-11-03© 2023 Emerald Publishing LimitedShubham BansalLokesh ChoudharyMegha KalraNiragi DaveAnil Kumar SharmaJournal of Engineering, Design and Technologyahead-of-printahead-of-print2023-11-0310.1108/JEDT-03-2023-0109https://www.emerald.com/insight/content/doi/10.1108/JEDT-03-2023-0109/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2023 Emerald Publishing Limited
Digital twin–based asset inspection and user–technology interactionshttps://www.emerald.com/insight/content/doi/10.1108/JEDT-03-2023-0121/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestWith the emergence of digital twins, the construction industry is looking toward improving the inspection and maintenance of all kinds of assets, such as bridges, roads and utilities. The purpose of this paper is to provide insights into how the development of an interactive digital twin creates a variety of interactions between users of this technology and assets to be monitored. The development of a digital twin inspection model, focusing on the specific case of a sewage pumping station, is chosen as the subject of a case study. Through the development of this model, this study explores the various user–technology interactions that can be designed in a digital twin context. Users interact with digital twins by following virtual instructions in a certain way, which creates a “quasi-other” relationship. A digital twin based on virtual reality (VR) also make users feel as if they are within the created VR of an inspection site, thereby immersing them in the VR environment. The design of a VR-based digital twin, which is determined by decisions made during the development process, shapes the context in which users interact with the technology and assets. This study shows that a digital twin in construction practice may play different “actant” roles having different types of influences. Analyzing these actant roles and influences in terms of force and visibility adds a new perspective on the interaction between users and digital twins in construction and asset monitoring practice.Digital twin–based asset inspection and user–technology interactions
Hans Voordijk, Faridaddin Vahdatikhaki, Lars Hesselink
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

With the emergence of digital twins, the construction industry is looking toward improving the inspection and maintenance of all kinds of assets, such as bridges, roads and utilities. The purpose of this paper is to provide insights into how the development of an interactive digital twin creates a variety of interactions between users of this technology and assets to be monitored.

The development of a digital twin inspection model, focusing on the specific case of a sewage pumping station, is chosen as the subject of a case study. Through the development of this model, this study explores the various user–technology interactions that can be designed in a digital twin context.

Users interact with digital twins by following virtual instructions in a certain way, which creates a “quasi-other” relationship. A digital twin based on virtual reality (VR) also make users feel as if they are within the created VR of an inspection site, thereby immersing them in the VR environment. The design of a VR-based digital twin, which is determined by decisions made during the development process, shapes the context in which users interact with the technology and assets.

This study shows that a digital twin in construction practice may play different “actant” roles having different types of influences. Analyzing these actant roles and influences in terms of force and visibility adds a new perspective on the interaction between users and digital twins in construction and asset monitoring practice.

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Digital twin–based asset inspection and user–technology interactions10.1108/JEDT-03-2023-0121Journal of Engineering, Design and Technology2023-08-14© 2023 Emerald Publishing LimitedHans VoordijkFaridaddin VahdatikhakiLars HesselinkJournal of Engineering, Design and Technologyahead-of-printahead-of-print2023-08-1410.1108/JEDT-03-2023-0121https://www.emerald.com/insight/content/doi/10.1108/JEDT-03-2023-0121/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2023 Emerald Publishing Limited
Facilitating the role of quantity surveyors through integration of cyber-physical systemshttps://www.emerald.com/insight/content/doi/10.1108/JEDT-03-2023-0126/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestCyber-physical systems (CPS) enable the synergistic integration of virtual models with the physical environment. This integration is gaining recognition for its potential to enhance construction project information management, thereby contributing to improved cost management in construction. Similarly, quantity surveyor (QS) plays a key role in construction projects by estimating and monitoring construction costs. Consequently, this research aims to explore redefining the role of QSs by integrating CPS. The research adopted an interpretivism stance to collect and analyse data. Two rounds of 21 and 19 semi-structured interviews were conducted, with experts selected through heterogeneous purposive sampling. Code-based content analysis was used to analyse the data using NVivo12. MS Visio data visualisation tool was used to present the findings. It is empirically proven the potential of CPS to facilitate nine key roles of QSs in all stages of the RIBA plan of work through the identification of 15 CPS applications and technologies. Nine key roles of QSs that CPS can facilitate were identified as preliminary estimation, measurement and quantification, contract administration, preparation of BOQ, interim valuation and payments, tender and contract documentation, cost planning, cost control and procurement advice. The study explored how adopting CPS technologies can transform traditional quantity surveying practices and enhance their value within the construction industry. The findings add to the body of knowledge by redefining the role of QS through the integration of CPS for the first time and then by highlighting the usages of CPS in the construction industry rather than limiting it to a specific sector of the construction industry, as previous studies have done. This research uncovers several other research arenas on CPS as being the very first research to evaluate CPS to facilitate key roles of QSs. The findings can enhance the awareness and the practical implementation of CPS by intervening to form more partnerships among application developers and industry leaders.Facilitating the role of quantity surveyors through integration of cyber-physical systems
Dilan Weerasooriya, K.A.T.O Ranadewa, B.A.K.S Perera
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

Cyber-physical systems (CPS) enable the synergistic integration of virtual models with the physical environment. This integration is gaining recognition for its potential to enhance construction project information management, thereby contributing to improved cost management in construction. Similarly, quantity surveyor (QS) plays a key role in construction projects by estimating and monitoring construction costs. Consequently, this research aims to explore redefining the role of QSs by integrating CPS.

The research adopted an interpretivism stance to collect and analyse data. Two rounds of 21 and 19 semi-structured interviews were conducted, with experts selected through heterogeneous purposive sampling. Code-based content analysis was used to analyse the data using NVivo12. MS Visio data visualisation tool was used to present the findings.

It is empirically proven the potential of CPS to facilitate nine key roles of QSs in all stages of the RIBA plan of work through the identification of 15 CPS applications and technologies. Nine key roles of QSs that CPS can facilitate were identified as preliminary estimation, measurement and quantification, contract administration, preparation of BOQ, interim valuation and payments, tender and contract documentation, cost planning, cost control and procurement advice. The study explored how adopting CPS technologies can transform traditional quantity surveying practices and enhance their value within the construction industry.

The findings add to the body of knowledge by redefining the role of QS through the integration of CPS for the first time and then by highlighting the usages of CPS in the construction industry rather than limiting it to a specific sector of the construction industry, as previous studies have done. This research uncovers several other research arenas on CPS as being the very first research to evaluate CPS to facilitate key roles of QSs. The findings can enhance the awareness and the practical implementation of CPS by intervening to form more partnerships among application developers and industry leaders.

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Facilitating the role of quantity surveyors through integration of cyber-physical systems10.1108/JEDT-03-2023-0126Journal of Engineering, Design and Technology2024-01-23© 2024 Emerald Publishing LimitedDilan WeerasooriyaK.A.T.O RanadewaB.A.K.S PereraJournal of Engineering, Design and Technologyahead-of-printahead-of-print2024-01-2310.1108/JEDT-03-2023-0126https://www.emerald.com/insight/content/doi/10.1108/JEDT-03-2023-0126/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2024 Emerald Publishing Limited
Identifying the capacity needs of built environment professionals to deliver environmentally sustainable buildings: a scientometric reviewhttps://www.emerald.com/insight/content/doi/10.1108/JEDT-04-2022-0217/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestThe purpose of this study is to identify the capacity needs of building professionals to deliver environmentally sustainable buildings (ESBs) globally, from a unique systems approach. Through a review of extant literature, this study contributes to knowledge of the global delivery of ESBs by identifying research trends and gaps that can be tackled in future research, and current hotspots in capacity building (CB) research within the built environment (BE). The adopted systems approach to CB postulates that the construction industry is systemized in nature, and thus, CB solutions within the industry should be approached from a systems approach. A literature search was conducted using the Scopus search engine, augmented by Google Scholar and Web of Science, to produce 54 relevant articles for analysis. The scientometric analysis was undertaken with the use of VOSViewer to better understand the broad literature on CB in the construction industry which would not have been possible with traditional data analysis. The content analysis allowed, for a systematic review of selected articles, to reveal key themes in this study. Through a content analysis, four levels of CB were identified within the construction industry; individual level, organizational level, industry level and state level. Nine sub-capacities were subsumed under the four identified levels adopted from Potter and Brough (2004), including but not limited to Performance capacity, Workload capacity, Supervisory capacity, Industry Role capacity and Systems capacity. Under each sub-capacity, key questions were posed to aid identify the capacity needs of BE professionals. A framework for identifying capacity needs in the BE is proposed. The findings of this study serve as a useful reference for practitioners and policymakers to assess their level of commitment to CB efforts for ESB delivery. The findings of this study have revealed that building the capacities of BE professionals to deliver ESBs should be addressed as part of a broader framework, interdependent on the other levels of CB in the systemic construction industry. As a review study identifying capacity needs for BE professionals to deliver ESBs, this study enhances knowledge of CB within the construction industry.Identifying the capacity needs of built environment professionals to deliver environmentally sustainable buildings: a scientometric review
Aba Essanowa Afful, Joshua Ayarkwa, Godwin Kojo Kumi Acquah, Ama Antwi Darkwa Ossei Assibey, Dickson Osei-Asibey
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

The purpose of this study is to identify the capacity needs of building professionals to deliver environmentally sustainable buildings (ESBs) globally, from a unique systems approach. Through a review of extant literature, this study contributes to knowledge of the global delivery of ESBs by identifying research trends and gaps that can be tackled in future research, and current hotspots in capacity building (CB) research within the built environment (BE). The adopted systems approach to CB postulates that the construction industry is systemized in nature, and thus, CB solutions within the industry should be approached from a systems approach.

A literature search was conducted using the Scopus search engine, augmented by Google Scholar and Web of Science, to produce 54 relevant articles for analysis. The scientometric analysis was undertaken with the use of VOSViewer to better understand the broad literature on CB in the construction industry which would not have been possible with traditional data analysis. The content analysis allowed, for a systematic review of selected articles, to reveal key themes in this study.

Through a content analysis, four levels of CB were identified within the construction industry; individual level, organizational level, industry level and state level. Nine sub-capacities were subsumed under the four identified levels adopted from Potter and Brough (2004), including but not limited to Performance capacity, Workload capacity, Supervisory capacity, Industry Role capacity and Systems capacity. Under each sub-capacity, key questions were posed to aid identify the capacity needs of BE professionals. A framework for identifying capacity needs in the BE is proposed.

The findings of this study serve as a useful reference for practitioners and policymakers to assess their level of commitment to CB efforts for ESB delivery. The findings of this study have revealed that building the capacities of BE professionals to deliver ESBs should be addressed as part of a broader framework, interdependent on the other levels of CB in the systemic construction industry.

As a review study identifying capacity needs for BE professionals to deliver ESBs, this study enhances knowledge of CB within the construction industry.

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Identifying the capacity needs of built environment professionals to deliver environmentally sustainable buildings: a scientometric review10.1108/JEDT-04-2022-0217Journal of Engineering, Design and Technology2022-11-03© 2022 Emerald Publishing LimitedAba Essanowa AffulJoshua AyarkwaGodwin Kojo Kumi AcquahAma Antwi Darkwa Ossei AssibeyDickson Osei-AsibeyJournal of Engineering, Design and Technologyahead-of-printahead-of-print2022-11-0310.1108/JEDT-04-2022-0217https://www.emerald.com/insight/content/doi/10.1108/JEDT-04-2022-0217/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2022 Emerald Publishing Limited
Determination of the significance of project delivery attributes (PDAs) on sustainable projects in Turkeyhttps://www.emerald.com/insight/content/doi/10.1108/JEDT-04-2022-0223/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestMany parameters influence the success of sustainable projects (SPs) in the architecture–engineering–construction. One of these important parameters is the project delivery attributes (PDA), which are influenced by the project delivery system (PDS) while affecting the selection of it. This study aims to evaluate the significance of PDAs in influencing both the performance and success of SPs in Turkey, where the interest in SPs is high. The impact of PDAs was determined by applying the two-round Delphi method with a semistructured interview involving the main stakeholders of a construction project, like owners, designers, contractors and consultants who played active roles in SPs, as well as academics to theoretically evaluate the issue. The significance of PDAs was assessed using the relative importance index, and the results were validated using the interrater agreement analysis. The study identified key PDAs impacting SPs as owner character, commitment and motivation; simulation and energy modelling; and timing of stakeholders/early involvement. The investigation of the significance of the PDAs is a lesser-studied context. Therefore, a research framework that enables an effective set of methods for solving the sectoral problems of PDAs that have impacts on SPs has been proposed. The framework is expected to open new opportunities for the generation and regulation of the PDSs for SPs. The findings will provide valuable insights to project stakeholders, particularly owners, local authorities and policymakers to assess which PDAs have a greater impact on sustainability performance when setting PDSs in SPs in other developing countries.Determination of the significance of project delivery attributes (PDAs) on sustainable projects in Turkey
Dinçer Aydın, Esma Mıhlayanlar
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

Many parameters influence the success of sustainable projects (SPs) in the architecture–engineering–construction. One of these important parameters is the project delivery attributes (PDA), which are influenced by the project delivery system (PDS) while affecting the selection of it. This study aims to evaluate the significance of PDAs in influencing both the performance and success of SPs in Turkey, where the interest in SPs is high.

The impact of PDAs was determined by applying the two-round Delphi method with a semistructured interview involving the main stakeholders of a construction project, like owners, designers, contractors and consultants who played active roles in SPs, as well as academics to theoretically evaluate the issue. The significance of PDAs was assessed using the relative importance index, and the results were validated using the interrater agreement analysis.

The study identified key PDAs impacting SPs as owner character, commitment and motivation; simulation and energy modelling; and timing of stakeholders/early involvement.

The investigation of the significance of the PDAs is a lesser-studied context. Therefore, a research framework that enables an effective set of methods for solving the sectoral problems of PDAs that have impacts on SPs has been proposed. The framework is expected to open new opportunities for the generation and regulation of the PDSs for SPs. The findings will provide valuable insights to project stakeholders, particularly owners, local authorities and policymakers to assess which PDAs have a greater impact on sustainability performance when setting PDSs in SPs in other developing countries.

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Determination of the significance of project delivery attributes (PDAs) on sustainable projects in Turkey10.1108/JEDT-04-2022-0223Journal of Engineering, Design and Technology2022-12-19© 2022 Emerald Publishing LimitedDinçer AydınEsma MıhlayanlarJournal of Engineering, Design and Technologyahead-of-printahead-of-print2022-12-1910.1108/JEDT-04-2022-0223https://www.emerald.com/insight/content/doi/10.1108/JEDT-04-2022-0223/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2022 Emerald Publishing Limited
A platform sandbox for the assessment of municipal sustainable development goalshttps://www.emerald.com/insight/content/doi/10.1108/JEDT-04-2023-0131/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestThis study aims to present an innovative sandbox platform that implements a decision support system (DSS) to assess the sustainable development goals (SDGs) addressed at the municipal level. It intends to determine the relative importance of each SDG in municipalities and explore the synergies that can be discovered among them. Participatory action research is used to develop a DSS and an algorithm designated as discrete heavy fuzzy was also developed, which extends the Apriori algorithm to include discrete quantitative assessments of the level of SDG compliance by each project. A scenario consisting of three municipalities in Portugal (i.e. Porto, Loulé and Castelo de Vide) was chosen to demonstrate the implementation of the sandbox platform and to interpret the observed results. The results reveal significant differences in the typology of SDGs addressed by each municipality. It was found that municipal sustainable projects are strongly influenced by the contextual factors of each municipality. Porto has projects that address the first five SDGs. Loulé appears projects that promote innovation, the fight against climate change and the development of sustainable cities. Castelo de Vida has initiatives related to innovation and infrastructure and decent work and economic growth. This study provides knowledge about the relative importance of the SDGs in Portuguese municipalities and explores the synergies among them. The proposed sandbox platform fills the gaps of the ODSlocal Webtool by proposing a dynamic and interactive approach for the exploration of quantitative indicators regarding the implementation status of the SDGs established in the 2030 Agenda. This study provides knowledge about the relative importance of the SDGs and the various synergies that exist between them considering the Portuguese municipalities. The sandbox platform presented and developed within this study allows filling the gaps of the ODSlocal Webtool that gathers essentially qualitative information about each project and offers a dynamic and interactive exploration with quantitative indicators of the implementation status of the SDGs established in the 2030 Agenda.A platform sandbox for the assessment of municipal sustainable development goals
Filipe Ferreira, Pedro Briga, Sérgio Ramos Teixeira, Fernando Almeida
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

This study aims to present an innovative sandbox platform that implements a decision support system (DSS) to assess the sustainable development goals (SDGs) addressed at the municipal level. It intends to determine the relative importance of each SDG in municipalities and explore the synergies that can be discovered among them.

Participatory action research is used to develop a DSS and an algorithm designated as discrete heavy fuzzy was also developed, which extends the Apriori algorithm to include discrete quantitative assessments of the level of SDG compliance by each project. A scenario consisting of three municipalities in Portugal (i.e. Porto, Loulé and Castelo de Vide) was chosen to demonstrate the implementation of the sandbox platform and to interpret the observed results.

The results reveal significant differences in the typology of SDGs addressed by each municipality. It was found that municipal sustainable projects are strongly influenced by the contextual factors of each municipality. Porto has projects that address the first five SDGs. Loulé appears projects that promote innovation, the fight against climate change and the development of sustainable cities. Castelo de Vida has initiatives related to innovation and infrastructure and decent work and economic growth.

This study provides knowledge about the relative importance of the SDGs in Portuguese municipalities and explores the synergies among them. The proposed sandbox platform fills the gaps of the ODSlocal Webtool by proposing a dynamic and interactive approach for the exploration of quantitative indicators regarding the implementation status of the SDGs established in the 2030 Agenda.

This study provides knowledge about the relative importance of the SDGs and the various synergies that exist between them considering the Portuguese municipalities. The sandbox platform presented and developed within this study allows filling the gaps of the ODSlocal Webtool that gathers essentially qualitative information about each project and offers a dynamic and interactive exploration with quantitative indicators of the implementation status of the SDGs established in the 2030 Agenda.

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A platform sandbox for the assessment of municipal sustainable development goals10.1108/JEDT-04-2023-0131Journal of Engineering, Design and Technology2023-08-18© 2023 Emerald Publishing LimitedFilipe FerreiraPedro BrigaSérgio Ramos TeixeiraFernando AlmeidaJournal of Engineering, Design and Technologyahead-of-printahead-of-print2023-08-1810.1108/JEDT-04-2023-0131https://www.emerald.com/insight/content/doi/10.1108/JEDT-04-2023-0131/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2023 Emerald Publishing Limited
Modelling the WELL building concepts for office environments: PLS-SEM approachhttps://www.emerald.com/insight/content/doi/10.1108/JEDT-04-2023-0141/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestThe health, well-being and productivity (i.e. WELL) of office building occupants are vulnerable to poor office environments. Therefore, this study aims to identify new features and concepts of office buildings in supporting occupants’ WELL. To achieve that aim, this study: explores new WELL features for office buildings, develops new WELL concepts for office buildings and examines the influence of the newly developed WELL concepts on existing WELL building standard (WELL v2) concepts. The first phase involved ten experts to assign weightage for health, well-being and productivity. In the second phase, 206 questionnaire survey data were collected from office building occupants throughout Malaysia. Exploratory factor analysis established new WELL concepts for office buildings. Partial least-squares structural equation modelling examined the influence of the newly developed WELL concepts on the existing WELL v2 concepts. Two new WELL concepts were developed: “space and services”, consisting of sufficient space, workstation privacy, office layouts, building automation systems, cleanliness and information technology (IT) infrastructure, and “building security”, consisting of security systems and safety at parking lots. Here, “space and services” influences all existing WELL v2 concepts, and “building security” influences the water, nourishment, mind and community concepts of WELL v2. This study uncovers holistic WELL building concepts to support occupants’ health, well-being and productivity with additional new features and concepts for construction industry policymakers to establish holistic building assessment tools.Modelling the WELL building concepts for office environments: PLS-SEM approach
Carmen Y.M. Tan, Rahimi A. Rahman, Yong Siang Lee
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

The health, well-being and productivity (i.e. WELL) of office building occupants are vulnerable to poor office environments. Therefore, this study aims to identify new features and concepts of office buildings in supporting occupants’ WELL. To achieve that aim, this study: explores new WELL features for office buildings, develops new WELL concepts for office buildings and examines the influence of the newly developed WELL concepts on existing WELL building standard (WELL v2) concepts.

The first phase involved ten experts to assign weightage for health, well-being and productivity. In the second phase, 206 questionnaire survey data were collected from office building occupants throughout Malaysia. Exploratory factor analysis established new WELL concepts for office buildings. Partial least-squares structural equation modelling examined the influence of the newly developed WELL concepts on the existing WELL v2 concepts.

Two new WELL concepts were developed: “space and services”, consisting of sufficient space, workstation privacy, office layouts, building automation systems, cleanliness and information technology (IT) infrastructure, and “building security”, consisting of security systems and safety at parking lots. Here, “space and services” influences all existing WELL v2 concepts, and “building security” influences the water, nourishment, mind and community concepts of WELL v2.

This study uncovers holistic WELL building concepts to support occupants’ health, well-being and productivity with additional new features and concepts for construction industry policymakers to establish holistic building assessment tools.

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Modelling the WELL building concepts for office environments: PLS-SEM approach10.1108/JEDT-04-2023-0141Journal of Engineering, Design and Technology2023-08-23© 2023 Emerald Publishing LimitedCarmen Y.M. TanRahimi A. RahmanYong Siang LeeJournal of Engineering, Design and Technologyahead-of-printahead-of-print2023-08-2310.1108/JEDT-04-2023-0141https://www.emerald.com/insight/content/doi/10.1108/JEDT-04-2023-0141/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2023 Emerald Publishing Limited
Sustainable building materials utilization in the construction sector and the implications on labour productivityhttps://www.emerald.com/insight/content/doi/10.1108/JEDT-04-2023-0164/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestThe United Nations has demonstrated a commitment to preserving the ecosystem through its 2030 sustainable development goals agenda. One crucial objective of these goals is to promote a healthy ecosystem and discourage practices that harm it. Building materials production significantly contributes to the emissions of greenhouse gases. This poses a threat to the ecosystem and prompts a growing demand for sustainable building materials (SBMs). The purpose of this study is to investigate SBMs to determine their utilization in construction operations and the potential impact their application could have on construction productivity. A systematic review of the existing literature in the field of SBMs was conducted for the study. The search strings used were “sustainable” AND (“building” OR “construction”) AND “materials” AND “productivity”. A total of 146 articles were obtained from the Scopus database and reviewed. Bio-based, cementitious and phase change materials were the main categories of SBMs. Materials in these categories have the potential to substantially contribute to sustainability in the construction sector. However, challenges such as availability, cost, expertise, awareness, social acceptance and resistance to innovation must be addressed to promote the increased utilization of SBMs and enhance construction productivity. Many studies have explored SBMs, but there is a dearth of studies that address productivity in the context of SBMs, which leaves a gap in understanding. This study addresses this gap by drawing on existing studies to determine the potential implications that using SBMs could have on construction productivity.Sustainable building materials utilization in the construction sector and the implications on labour productivity
Oluseyi Julius Adebowale, Justus Ngala Agumba
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

The United Nations has demonstrated a commitment to preserving the ecosystem through its 2030 sustainable development goals agenda. One crucial objective of these goals is to promote a healthy ecosystem and discourage practices that harm it. Building materials production significantly contributes to the emissions of greenhouse gases. This poses a threat to the ecosystem and prompts a growing demand for sustainable building materials (SBMs). The purpose of this study is to investigate SBMs to determine their utilization in construction operations and the potential impact their application could have on construction productivity.

A systematic review of the existing literature in the field of SBMs was conducted for the study. The search strings used were “sustainable” AND (“building” OR “construction”) AND “materials” AND “productivity”. A total of 146 articles were obtained from the Scopus database and reviewed.

Bio-based, cementitious and phase change materials were the main categories of SBMs. Materials in these categories have the potential to substantially contribute to sustainability in the construction sector. However, challenges such as availability, cost, expertise, awareness, social acceptance and resistance to innovation must be addressed to promote the increased utilization of SBMs and enhance construction productivity.

Many studies have explored SBMs, but there is a dearth of studies that address productivity in the context of SBMs, which leaves a gap in understanding. This study addresses this gap by drawing on existing studies to determine the potential implications that using SBMs could have on construction productivity.

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Sustainable building materials utilization in the construction sector and the implications on labour productivity10.1108/JEDT-04-2023-0164Journal of Engineering, Design and Technology2023-10-30© 2023 Emerald Publishing LimitedOluseyi Julius AdebowaleJustus Ngala AgumbaJournal of Engineering, Design and Technologyahead-of-printahead-of-print2023-10-3010.1108/JEDT-04-2023-0164https://www.emerald.com/insight/content/doi/10.1108/JEDT-04-2023-0164/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2023 Emerald Publishing Limited
Overlapping sustainable construction indicators for construction organisations in Zimbabwehttps://www.emerald.com/insight/content/doi/10.1108/JEDT-04-2023-0168/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestSustainable construction deficits are common in developing economies, and resolutions are constrained by the failure to prioritise the plethora of available indicators. This study aims to report on overlapping indicators for benchmarking sustainable construction for construction organisations. Online survey data were collected from construction professionals, academics and senior managers in government bodies. Pearson chi-squared tests and overlapping analysis were used to determine significant indicators. Kruskal–Wallis tests were used to determine statistically significant differences among the dimensions. Overlapping analysis determined indicators significant for economic, environmental and social performance. Environmental protection and reporting (pollution and emissions) were significant for all three performance dimensions. The most significant indicators are economic performance (adequate competence of key project staff), environmental performance (environmental protection and reporting – pollution and emissions) and social performance (adequate sustainability expenditure by construction organisations). Significant differences due to dimensions existed for adequate competence of key project staff, sustainable construction and eco-design, adequate governance and organisational excellence of construction projects and satisfactory workers’ morale. Determining overlapping indicators enables prioritised implementation that ensures sustainable construction. Excluding construction workers was a significant limitation for a holistic interrogation. To the best of the authors’ knowledge, this is the first study to determine overlapping indicators for sustainable construction performance in Zimbabwe.Overlapping sustainable construction indicators for construction organisations in Zimbabwe
Tirivavi Moyo, Mazen Omer, Benviolent Chigara
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

Sustainable construction deficits are common in developing economies, and resolutions are constrained by the failure to prioritise the plethora of available indicators. This study aims to report on overlapping indicators for benchmarking sustainable construction for construction organisations.

Online survey data were collected from construction professionals, academics and senior managers in government bodies. Pearson chi-squared tests and overlapping analysis were used to determine significant indicators. Kruskal–Wallis tests were used to determine statistically significant differences among the dimensions.

Overlapping analysis determined indicators significant for economic, environmental and social performance. Environmental protection and reporting (pollution and emissions) were significant for all three performance dimensions. The most significant indicators are economic performance (adequate competence of key project staff), environmental performance (environmental protection and reporting – pollution and emissions) and social performance (adequate sustainability expenditure by construction organisations). Significant differences due to dimensions existed for adequate competence of key project staff, sustainable construction and eco-design, adequate governance and organisational excellence of construction projects and satisfactory workers’ morale.

Determining overlapping indicators enables prioritised implementation that ensures sustainable construction. Excluding construction workers was a significant limitation for a holistic interrogation.

To the best of the authors’ knowledge, this is the first study to determine overlapping indicators for sustainable construction performance in Zimbabwe.

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Overlapping sustainable construction indicators for construction organisations in Zimbabwe10.1108/JEDT-04-2023-0168Journal of Engineering, Design and Technology2024-01-08© 2023 Emerald Publishing LimitedTirivavi MoyoMazen OmerBenviolent ChigaraJournal of Engineering, Design and Technologyahead-of-printahead-of-print2024-01-0810.1108/JEDT-04-2023-0168https://www.emerald.com/insight/content/doi/10.1108/JEDT-04-2023-0168/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2023 Emerald Publishing Limited
Unlocking the full potential of reality capture for construction project cost monitoring: a mixed reviewhttps://www.emerald.com/insight/content/doi/10.1108/JEDT-05-2022-0231/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestDigital data acquisition is crucial for operations in the digital transformation era. Reality capture (RC) has made an immeasurable contribution to various fields, especially in the built environment. This paper aims to review RC applications, potentials, limitations and the extent to which RC can be adopted for cost monitoring of construction projects. A mixed-method approach, using Bibliometric analysis and the PRISMA framework, was used to review and analyse 112 peer-reviewed journal articles from the Scopus and Web of Science databases. The study reveals RC has been applied in various areas in the built environment, but health and safety, cost and labour productivity monitoring have received little or no attention. It is proposed that RC can significantly support cost monitoring owing to its ability to acquire accurate and quick digital as-built 3D point cloud data, which contains rich measurement points for the valuation of work done. The study’s conclusions are based only on the Scopus and Web of Science data sets. Only English language documents were approved, whereas others may be in other languages. The research is a non-validation of findings using empirical data to confirm the data obtained from RC literature. This paper highlights the importance of RC for cost monitoring in construction projects, filling knowledge gaps and enhancing project outcomes. The implementation of RC in the era of the digital revolution has the potential to improve project delivery around the world today. Every project’s success is largely determined by the availability of precise and detailed digital data. RC applications have pushed for more sustainable design, construction and operations in the built environment. The study has given research trends on the extent of RC applications, potentials, limitations and future directions.Unlocking the full potential of reality capture for construction project cost monitoring: a mixed review
Godfred Fobiri, Innocent Musonda, Franco Muleya
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

Digital data acquisition is crucial for operations in the digital transformation era. Reality capture (RC) has made an immeasurable contribution to various fields, especially in the built environment. This paper aims to review RC applications, potentials, limitations and the extent to which RC can be adopted for cost monitoring of construction projects.

A mixed-method approach, using Bibliometric analysis and the PRISMA framework, was used to review and analyse 112 peer-reviewed journal articles from the Scopus and Web of Science databases.

The study reveals RC has been applied in various areas in the built environment, but health and safety, cost and labour productivity monitoring have received little or no attention. It is proposed that RC can significantly support cost monitoring owing to its ability to acquire accurate and quick digital as-built 3D point cloud data, which contains rich measurement points for the valuation of work done.

The study’s conclusions are based only on the Scopus and Web of Science data sets. Only English language documents were approved, whereas others may be in other languages. The research is a non-validation of findings using empirical data to confirm the data obtained from RC literature.

This paper highlights the importance of RC for cost monitoring in construction projects, filling knowledge gaps and enhancing project outcomes.

The implementation of RC in the era of the digital revolution has the potential to improve project delivery around the world today. Every project’s success is largely determined by the availability of precise and detailed digital data. RC applications have pushed for more sustainable design, construction and operations in the built environment.

The study has given research trends on the extent of RC applications, potentials, limitations and future directions.

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Unlocking the full potential of reality capture for construction project cost monitoring: a mixed review10.1108/JEDT-05-2022-0231Journal of Engineering, Design and Technology2024-01-15© 2024 Emerald Publishing LimitedGodfred FobiriInnocent MusondaFranco MuleyaJournal of Engineering, Design and Technologyahead-of-printahead-of-print2024-01-1510.1108/JEDT-05-2022-0231https://www.emerald.com/insight/content/doi/10.1108/JEDT-05-2022-0231/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2024 Emerald Publishing Limited
Comparison of machine learning algorithms for evaluating building energy efficiency using big data analyticshttps://www.emerald.com/insight/content/doi/10.1108/JEDT-05-2022-0238/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestThis study aims to compare and evaluate the application of commonly used machine learning (ML) algorithms used to develop models for assessing energy efficiency of buildings. This study foremostly combined building energy efficiency ratings from several data sources and used them to create predictive models using a variety of ML methods. Secondly, to test the hypothesis of ensemble techniques, this study designed a hybrid stacking ensemble approach based on the best performing bagging and boosting ensemble methods generated from its predictive analytics. Based on performance evaluation metrics scores, the extra trees model was shown to be the best predictive model. More importantly, this study demonstrated that the cumulative result of ensemble ML algorithms is usually always better in terms of predicted accuracy than a single method. Finally, it was discovered that stacking is a superior ensemble approach for analysing building energy efficiency than bagging and boosting. While the proposed contemporary method of analysis is assumed to be applicable in assessing energy efficiency of buildings within the sector, the unique data transformation used in this study may not, as typical of any data driven model, be transferable to the data from other regions other than the UK. This study aids in the initial selection of appropriate and high-performing ML algorithms for future analysis. This study also assists building managers, residents, government agencies and other stakeholders in better understanding contributing factors and making better decisions about building energy performance. Furthermore, this study will assist the general public in proactively identifying buildings with high energy demands, potentially lowering energy costs by promoting avoidance behaviour and assisting government agencies in making informed decisions about energy tariffs when this novel model is integrated into an energy monitoring system. This study fills a gap in the lack of a reason for selecting appropriate ML algorithms for assessing building energy efficiency. More importantly, this study demonstrated that the cumulative result of ensemble ML algorithms is usually always better in terms of predicted accuracy than a single method.Comparison of machine learning algorithms for evaluating building energy efficiency using big data analytics
Christian Nnaemeka Egwim, Hafiz Alaka, Oluwapelumi Oluwaseun Egunjobi, Alvaro Gomes, Iosif Mporas
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

This study aims to compare and evaluate the application of commonly used machine learning (ML) algorithms used to develop models for assessing energy efficiency of buildings.

This study foremostly combined building energy efficiency ratings from several data sources and used them to create predictive models using a variety of ML methods. Secondly, to test the hypothesis of ensemble techniques, this study designed a hybrid stacking ensemble approach based on the best performing bagging and boosting ensemble methods generated from its predictive analytics.

Based on performance evaluation metrics scores, the extra trees model was shown to be the best predictive model. More importantly, this study demonstrated that the cumulative result of ensemble ML algorithms is usually always better in terms of predicted accuracy than a single method. Finally, it was discovered that stacking is a superior ensemble approach for analysing building energy efficiency than bagging and boosting.

While the proposed contemporary method of analysis is assumed to be applicable in assessing energy efficiency of buildings within the sector, the unique data transformation used in this study may not, as typical of any data driven model, be transferable to the data from other regions other than the UK.

This study aids in the initial selection of appropriate and high-performing ML algorithms for future analysis. This study also assists building managers, residents, government agencies and other stakeholders in better understanding contributing factors and making better decisions about building energy performance. Furthermore, this study will assist the general public in proactively identifying buildings with high energy demands, potentially lowering energy costs by promoting avoidance behaviour and assisting government agencies in making informed decisions about energy tariffs when this novel model is integrated into an energy monitoring system.

This study fills a gap in the lack of a reason for selecting appropriate ML algorithms for assessing building energy efficiency. More importantly, this study demonstrated that the cumulative result of ensemble ML algorithms is usually always better in terms of predicted accuracy than a single method.

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Comparison of machine learning algorithms for evaluating building energy efficiency using big data analytics10.1108/JEDT-05-2022-0238Journal of Engineering, Design and Technology2022-09-26© 2022 Emerald Publishing LimitedChristian Nnaemeka EgwimHafiz AlakaOluwapelumi Oluwaseun EgunjobiAlvaro GomesIosif MporasJournal of Engineering, Design and Technologyahead-of-printahead-of-print2022-09-2610.1108/JEDT-05-2022-0238https://www.emerald.com/insight/content/doi/10.1108/JEDT-05-2022-0238/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2022 Emerald Publishing Limited
The use of alternative building technologies as a sustainable affordable housing solution: perspectives from South Africahttps://www.emerald.com/insight/content/doi/10.1108/JEDT-05-2022-0257/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestThis study aims to evaluate the perception of the local experts and end users on the drivers, barriers and strategies to the use of alternative building technologies (ABTs), with a focus on sandbag building technologies (SBTs) in the provision of sustainable housing in South Africa towards improving the public's understanding of SBTs. This research adopted a qualitative approach that used focus group meetings as the primary data collection method for this study. This study's focus group participants comprised ABT experts and end users of ABT houses in South Africa who were selected using a convenient sampling technique. The data were recorded, transcribed verbatim and analysed using NVivo 11 software. This study found that the perceived drivers to using ABTs such as SBT comprise sustainability, affordability, job creation potentials, fire-resistant and earthquake resistance. This study revealed strategies for the SBTs, including awareness, building sandbag prototypes across cities and training. This study's findings have practical implications for the practice and praxis of ABT implementation and uptake in South Africa. This study provides a framework for broadening the worldwide understanding of use and uptake of SBTs to provide sustainable and affordable housing. This study adds significantly to the limited body of knowledge on ABTs, focusing on sandbag houses. Consequently, the findings provide policymakers with information on the expert and end-user perspectives on the barriers and strategies to using ABTs.The use of alternative building technologies as a sustainable affordable housing solution: perspectives from South Africa
Johnson Adetooto, Abimbola Windapo, Francesco Pomponi
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

This study aims to evaluate the perception of the local experts and end users on the drivers, barriers and strategies to the use of alternative building technologies (ABTs), with a focus on sandbag building technologies (SBTs) in the provision of sustainable housing in South Africa towards improving the public's understanding of SBTs.

This research adopted a qualitative approach that used focus group meetings as the primary data collection method for this study. This study's focus group participants comprised ABT experts and end users of ABT houses in South Africa who were selected using a convenient sampling technique. The data were recorded, transcribed verbatim and analysed using NVivo 11 software.

This study found that the perceived drivers to using ABTs such as SBT comprise sustainability, affordability, job creation potentials, fire-resistant and earthquake resistance. This study revealed strategies for the SBTs, including awareness, building sandbag prototypes across cities and training.

This study's findings have practical implications for the practice and praxis of ABT implementation and uptake in South Africa. This study provides a framework for broadening the worldwide understanding of use and uptake of SBTs to provide sustainable and affordable housing.

This study adds significantly to the limited body of knowledge on ABTs, focusing on sandbag houses. Consequently, the findings provide policymakers with information on the expert and end-user perspectives on the barriers and strategies to using ABTs.

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The use of alternative building technologies as a sustainable affordable housing solution: perspectives from South Africa10.1108/JEDT-05-2022-0257Journal of Engineering, Design and Technology2022-11-14© 2022 Johnson Adetooto, Abimbola Windapo and Francesco PomponiJohnson AdetootoAbimbola WindapoFrancesco PomponiJournal of Engineering, Design and Technologyahead-of-printahead-of-print2022-11-1410.1108/JEDT-05-2022-0257https://www.emerald.com/insight/content/doi/10.1108/JEDT-05-2022-0257/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2022 Johnson Adetooto, Abimbola Windapo and Francesco Pomponihttp://creativecommons.org/licences/by/4.0/legalcode
Assessment of construction professionals' awareness of the smart building concepts in the Nigerian construction industryhttps://www.emerald.com/insight/content/doi/10.1108/JEDT-05-2022-0263/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestThe current movement toward digitisation has promoted the adoption of smart building technology globally. Despite its advantages, its usage in developing countries such as Nigeria is still very low. Therefore, the purpose of this paper is to investigate construction professionals' awareness of smart building concepts (SBCs) in the Nigerian construction industry and identify the parameters by which SBCs can be measured. A quantitative survey was carried out using a questionnaire to gather relevant data in the study area. This paper was conducted on 363 registered construction professionals in the Nigerian construction industry. The collected data were analysed using descriptive statistics and Kruskal–Wallis H test analysis. This paper indicated that the majority of Nigerian construction professionals are aware of SBCs. Furthermore, the Kruskal–Wallis H test shows no significant difference between the awareness level of the various construction professionals. This paper further revealed energy management systems, IT network connectivity, safety and security management systems and building automation systems as the most significant parameters in which SBCs can be measured. This paper identified significant parameters influencing SBCs awareness in the Nigerian construction industry. These parameters can be integrated into the building during the design stage and can be incorporated into the policymaking process of construction firms to promote the awareness of SBCs and encourage practices related to construction sustainability. This paper provides empirical evidence on the awareness of SBCs among construction professionals and significant parameters influencing awareness in the Nigerian construction industry.Assessment of construction professionals' awareness of the smart building concepts in the Nigerian construction industry
Cyril Chinonso Ejidike, Modupe Cecilia Mewomo, Iruka Chijindu Anugwo
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

The current movement toward digitisation has promoted the adoption of smart building technology globally. Despite its advantages, its usage in developing countries such as Nigeria is still very low. Therefore, the purpose of this paper is to investigate construction professionals' awareness of smart building concepts (SBCs) in the Nigerian construction industry and identify the parameters by which SBCs can be measured.

A quantitative survey was carried out using a questionnaire to gather relevant data in the study area. This paper was conducted on 363 registered construction professionals in the Nigerian construction industry. The collected data were analysed using descriptive statistics and Kruskal–Wallis H test analysis.

This paper indicated that the majority of Nigerian construction professionals are aware of SBCs. Furthermore, the Kruskal–Wallis H test shows no significant difference between the awareness level of the various construction professionals. This paper further revealed energy management systems, IT network connectivity, safety and security management systems and building automation systems as the most significant parameters in which SBCs can be measured.

This paper identified significant parameters influencing SBCs awareness in the Nigerian construction industry. These parameters can be integrated into the building during the design stage and can be incorporated into the policymaking process of construction firms to promote the awareness of SBCs and encourage practices related to construction sustainability.

This paper provides empirical evidence on the awareness of SBCs among construction professionals and significant parameters influencing awareness in the Nigerian construction industry.

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Assessment of construction professionals' awareness of the smart building concepts in the Nigerian construction industry10.1108/JEDT-05-2022-0263Journal of Engineering, Design and Technology2022-10-31© 2022 Cyril Chinonso Chinonso Ejidike, Modupe Cecilia Mewomo and Iruka Chijindu Anugwo.Cyril Chinonso EjidikeModupe Cecilia MewomoIruka Chijindu AnugwoJournal of Engineering, Design and Technologyahead-of-printahead-of-print2022-10-3110.1108/JEDT-05-2022-0263https://www.emerald.com/insight/content/doi/10.1108/JEDT-05-2022-0263/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2022 Cyril Chinonso Chinonso Ejidike, Modupe Cecilia Mewomo and Iruka Chijindu Anugwo.
Organizational leadership and employee well-being in the construction industry: a bibliometric and scientometric reviewhttps://www.emerald.com/insight/content/doi/10.1108/JEDT-05-2023-0174/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestThe construction industry (CI) has been identified as one of the most challenging sectors for stakeholders to achieve organizational success. Although previous studies had examined both organizational leadership (OL) and employee well-being (EWB) in the CI, a bibliometric and systematic analysis of published articles is hitherto lacking. Therefore, this paper aims to conduct a bibliometric and scientometric review of published articles related to OL and EWB in the CI between 2008 and 2022. A three-step method consisting of a bibliometric analysis, a scientometric analysis and an in-depth discussion were used. A total of 1,114 articles met the inclusion criteria. All articles were retrieved from the Scopus database. The results present an in-depth discussion of the research publication trends, keywords co-occurrence analysis, document analysis and countries/regions analysis. This review paper identified three main research gaps in OL and EWB in the CI, namely, project management, technology innovation and people orientation. It also proposes “OL-EWB in the CI”' mechanisms and a theoretical framework to guide future research directions. This review paper theoretically fills the gap in the lack of research summarizing OL and EWB in the CI and provides research gaps and trends for achieving a win-win situation for both companies and employees.Organizational leadership and employee well-being in the construction industry: a bibliometric and scientometric review
Jiaqi Shi, Maxwell Fordjour Antwi-Afari
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

The construction industry (CI) has been identified as one of the most challenging sectors for stakeholders to achieve organizational success. Although previous studies had examined both organizational leadership (OL) and employee well-being (EWB) in the CI, a bibliometric and systematic analysis of published articles is hitherto lacking. Therefore, this paper aims to conduct a bibliometric and scientometric review of published articles related to OL and EWB in the CI between 2008 and 2022.

A three-step method consisting of a bibliometric analysis, a scientometric analysis and an in-depth discussion were used. A total of 1,114 articles met the inclusion criteria. All articles were retrieved from the Scopus database.

The results present an in-depth discussion of the research publication trends, keywords co-occurrence analysis, document analysis and countries/regions analysis. This review paper identified three main research gaps in OL and EWB in the CI, namely, project management, technology innovation and people orientation. It also proposes “OL-EWB in the CI”' mechanisms and a theoretical framework to guide future research directions.

This review paper theoretically fills the gap in the lack of research summarizing OL and EWB in the CI and provides research gaps and trends for achieving a win-win situation for both companies and employees.

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Organizational leadership and employee well-being in the construction industry: a bibliometric and scientometric review10.1108/JEDT-05-2023-0174Journal of Engineering, Design and Technology2023-09-13© 2023 Emerald Publishing LimitedJiaqi ShiMaxwell Fordjour Antwi-AfariJournal of Engineering, Design and Technologyahead-of-printahead-of-print2023-09-1310.1108/JEDT-05-2023-0174https://www.emerald.com/insight/content/doi/10.1108/JEDT-05-2023-0174/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2023 Emerald Publishing Limited
Critical application areas of radio frequency identification (RFID) technology for sustainable construction in developing countries: the case of Nigeriahttps://www.emerald.com/insight/content/doi/10.1108/JEDT-05-2023-0191/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestThis study aims to explore the critical application areas of radio frequency identification (RFID) technology for sustainable buildings. The quantitative research approach was adopted through a structured questionnaire administered to relevant stakeholders of construction projects. The data collected were analysed with the exploratory factor analysis, relative importance index (RII) and fuzzy synthetic evaluation (FSE). The study’s results have categorised the crucial areas of application where construction industry stakeholders should focus their attention. These areas are divided into four categories: management technologies, production technologies, sensing technologies and monitoring technologies. The findings from the FSE indicate that monitoring technologies represent the most significant category, whereas management technologies rank as the least significant. Moreover, the RII analysis highlights that tools management stands out as the most important application of RFID, while dispute resolution emerges as the least significant RFID application. The study establishes the core areas of RFID application and their benefits to sustainable buildings. Consequently, it helps stakeholders (consultants, clients and contractors) to examine the RFID application areas and make informed decision on sustainable construction. Furthermore, it provides systematic proof that can aid the implementation of RFID in developing countries. The study provides an insight into the possible application areas and benefits of RFID technology in the construction industry of developing countries. It also developed a conceptual frame for the critical application areas of RFID technology in the construction industry of developing countries.Critical application areas of radio frequency identification (RFID) technology for sustainable construction in developing countries: the case of Nigeria
Ahmed Farouk Kineber, Ayodeji Emmanuel Oke, Ali Hassan Ali, Oluwaseun Dosumu, Kayode Fakunle, Oludolapo Ibrahim Olanrewaju
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

This study aims to explore the critical application areas of radio frequency identification (RFID) technology for sustainable buildings.

The quantitative research approach was adopted through a structured questionnaire administered to relevant stakeholders of construction projects. The data collected were analysed with the exploratory factor analysis, relative importance index (RII) and fuzzy synthetic evaluation (FSE).

The study’s results have categorised the crucial areas of application where construction industry stakeholders should focus their attention. These areas are divided into four categories: management technologies, production technologies, sensing technologies and monitoring technologies. The findings from the FSE indicate that monitoring technologies represent the most significant category, whereas management technologies rank as the least significant. Moreover, the RII analysis highlights that tools management stands out as the most important application of RFID, while dispute resolution emerges as the least significant RFID application.

The study establishes the core areas of RFID application and their benefits to sustainable buildings. Consequently, it helps stakeholders (consultants, clients and contractors) to examine the RFID application areas and make informed decision on sustainable construction. Furthermore, it provides systematic proof that can aid the implementation of RFID in developing countries.

The study provides an insight into the possible application areas and benefits of RFID technology in the construction industry of developing countries. It also developed a conceptual frame for the critical application areas of RFID technology in the construction industry of developing countries.

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Critical application areas of radio frequency identification (RFID) technology for sustainable construction in developing countries: the case of Nigeria10.1108/JEDT-05-2023-0191Journal of Engineering, Design and Technology2023-12-21© 2023 Emerald Publishing LimitedAhmed Farouk KineberAyodeji Emmanuel OkeAli Hassan AliOluwaseun DosumuKayode FakunleOludolapo Ibrahim OlanrewajuJournal of Engineering, Design and Technologyahead-of-printahead-of-print2023-12-2110.1108/JEDT-05-2023-0191https://www.emerald.com/insight/content/doi/10.1108/JEDT-05-2023-0191/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2023 Emerald Publishing Limited
Inquiry into channels of health and safety knowledge communication across the boundaries of the construction industryhttps://www.emerald.com/insight/content/doi/10.1108/JEDT-05-2023-0195/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestEffective safety communication facilitates the sharing of relevant knowledge that helps to improve safety behaviours, such as superior hazard identification and compliance. This study aims to explore channels by which construction companies can effectively communicate health and safety (H&S) among communities of their operations. Based on a quantitative research approach, this study addressed the knowledge gap through a cross-sectional survey of 250 contractors (comprising 155 building and 95 road contractors) involved in various projects in the Ghanaian construction industry. These contractors were selected by using a stratified simple random sampling technique. Data obtained from the survey was analysed through descriptive (i.e. frequencies, mean and standard deviation) and inferential (i.e. exploratory factor analysis) statistical analyses. The findings from the mean scores revealed that all the 12 communication channels identified in the literature, confirmed through piloting and examined by the respondents, were important channels through which construction companies can effectively communicate H&S amongst communities of their operations. The exploratory factor analysis revealed a clustering of the 12 channels of communication into 5 components: “safety demonstration in the community”; “social media”; “mass media”; “community engagement”; and “opinion leaders”. This study offers construction project managers the means of managing one of the major stakeholders of a construction project (the community). It provides an actionable opportunity that can be leveraged strategically to integrate community members into projects to promote synergy and local content inclusion while gaining a peaceful atmosphere to achieve their project goals. Practically, this study provides construction project managers with a means of managing one of the major stakeholders of a construction project (the community) and also demonstrates the integration of community members into projects to promote synergy and local content inclusion. This would give construction organisations a peaceful atmosphere to accomplish their project objectives. The social implication of this study is that the study offers society a means of creating safer Ghanaian communities by offering them the knowledge of identifying hazards and avoiding risky behaviours, creating a good safety atmosphere in these communities. This study presents construction organisations with a unique opportunity to transfer and share novel external knowledge within a different social system (the community). It contributes to the state-of-the-art knowledge in H&S communication by providing channels through which H&S can be communicated in a developing country such as Ghana.Inquiry into channels of health and safety knowledge communication across the boundaries of the construction industry
Justice Williams, Frank Fugar, Emmanuel Adinyira, Kofi Agyekum
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

Effective safety communication facilitates the sharing of relevant knowledge that helps to improve safety behaviours, such as superior hazard identification and compliance. This study aims to explore channels by which construction companies can effectively communicate health and safety (H&S) among communities of their operations.

Based on a quantitative research approach, this study addressed the knowledge gap through a cross-sectional survey of 250 contractors (comprising 155 building and 95 road contractors) involved in various projects in the Ghanaian construction industry. These contractors were selected by using a stratified simple random sampling technique. Data obtained from the survey was analysed through descriptive (i.e. frequencies, mean and standard deviation) and inferential (i.e. exploratory factor analysis) statistical analyses.

The findings from the mean scores revealed that all the 12 communication channels identified in the literature, confirmed through piloting and examined by the respondents, were important channels through which construction companies can effectively communicate H&S amongst communities of their operations. The exploratory factor analysis revealed a clustering of the 12 channels of communication into 5 components: “safety demonstration in the community”; “social media”; “mass media”; “community engagement”; and “opinion leaders”.

This study offers construction project managers the means of managing one of the major stakeholders of a construction project (the community). It provides an actionable opportunity that can be leveraged strategically to integrate community members into projects to promote synergy and local content inclusion while gaining a peaceful atmosphere to achieve their project goals.

Practically, this study provides construction project managers with a means of managing one of the major stakeholders of a construction project (the community) and also demonstrates the integration of community members into projects to promote synergy and local content inclusion. This would give construction organisations a peaceful atmosphere to accomplish their project objectives.

The social implication of this study is that the study offers society a means of creating safer Ghanaian communities by offering them the knowledge of identifying hazards and avoiding risky behaviours, creating a good safety atmosphere in these communities.

This study presents construction organisations with a unique opportunity to transfer and share novel external knowledge within a different social system (the community). It contributes to the state-of-the-art knowledge in H&S communication by providing channels through which H&S can be communicated in a developing country such as Ghana.

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Inquiry into channels of health and safety knowledge communication across the boundaries of the construction industry10.1108/JEDT-05-2023-0195Journal of Engineering, Design and Technology2024-02-02© 2024 Emerald Publishing LimitedJustice WilliamsFrank FugarEmmanuel AdinyiraKofi AgyekumJournal of Engineering, Design and Technologyahead-of-printahead-of-print2024-02-0210.1108/JEDT-05-2023-0195https://www.emerald.com/insight/content/doi/10.1108/JEDT-05-2023-0195/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2024 Emerald Publishing Limited
Decision support factors evaluative model for affordable PPP public housing delivery in Ghanahttps://www.emerald.com/insight/content/doi/10.1108/JEDT-05-2023-0198/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestAs public–private partnerships (PPPs) have become preferred and veritable approach to deliver affordable housing, the seemingly lack of understanding of the significant factors that impact on success has become a notable setback. This study aims to delineate significant factors that can support decisions in affordable PPP public housing delivery. Largely, a questionnaire survey was adopted to elicit insights from practitioners, policymakers and experts to develop an evaluative decision support model using an analytical hierarchy process and multi-attribute utility technique approach. Further, an expert illustration was conducted to evaluate and validate the results on the housing typologies. The results revealed that energy efficiency and low-cost green building materials scored the highest weighting of all the criteria. Furthermore, multi-storey self-contained flats were found to be the most preferred housing typology and were significantly influenced by these factors. From the model evaluation, the scores on the factors of sustainability, affordability, cultural values and accountability were consistent across all typologies of housing whereas that of benchmarking, governance and transparency were varied. The decision support factors captured varied dimensions of key factors that impact on affordable PPP housing that have not been considered in an integrated manner. These findings offer objective and systematic support to decision-making in affordable PPP housing delivery.Decision support factors evaluative model for affordable PPP public housing delivery in Ghana
Titus Ebenezer Kwofie, Michael Nii Addy, Daniel Yaw Addai Duah, Clinton Ohis Aigbavboa, Emmanuel Banahene Owusu, George Felix Olympio
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

As public–private partnerships (PPPs) have become preferred and veritable approach to deliver affordable housing, the seemingly lack of understanding of the significant factors that impact on success has become a notable setback. This study aims to delineate significant factors that can support decisions in affordable PPP public housing delivery.

Largely, a questionnaire survey was adopted to elicit insights from practitioners, policymakers and experts to develop an evaluative decision support model using an analytical hierarchy process and multi-attribute utility technique approach. Further, an expert illustration was conducted to evaluate and validate the results on the housing typologies.

The results revealed that energy efficiency and low-cost green building materials scored the highest weighting of all the criteria. Furthermore, multi-storey self-contained flats were found to be the most preferred housing typology and were significantly influenced by these factors. From the model evaluation, the scores on the factors of sustainability, affordability, cultural values and accountability were consistent across all typologies of housing whereas that of benchmarking, governance and transparency were varied.

The decision support factors captured varied dimensions of key factors that impact on affordable PPP housing that have not been considered in an integrated manner. These findings offer objective and systematic support to decision-making in affordable PPP housing delivery.

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Decision support factors evaluative model for affordable PPP public housing delivery in Ghana10.1108/JEDT-05-2023-0198Journal of Engineering, Design and Technology2024-01-24© 2024 Emerald Publishing LimitedTitus Ebenezer KwofieMichael Nii AddyDaniel Yaw Addai DuahClinton Ohis AigbavboaEmmanuel Banahene OwusuGeorge Felix OlympioJournal of Engineering, Design and Technologyahead-of-printahead-of-print2024-01-2410.1108/JEDT-05-2023-0198https://www.emerald.com/insight/content/doi/10.1108/JEDT-05-2023-0198/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2024 Emerald Publishing Limited
Resource sustainability in the water, energy and food nexus: role of technological innovationhttps://www.emerald.com/insight/content/doi/10.1108/JEDT-05-2023-0200/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestThis paper aims to examine the role of technological Innovation in ensuring resource sustainability in the water, energy and food (WEF) nexus, as there exists a shortage of statistical research on the extent of the influence of technological Innovation on the WEF nexus. The study used a quantitative research method, using a well-structured questionnaire to collect data from management staff in the WEF departments in South Africa. The collected data were analyzed by using mean score ranking, exploratory factor analysis (EFA) and confirmatory factor analysis (CFA) for structural equation modelling (SEM). The findings show that the technological process of technological innovation is significant for resource sustainability. The result also showed that technological innovations directly and statistically significantly affect WEF nexus. The EFA resulted in three components of WEF nexus product innovation, WEF nexus process innovation and WEF nexus novel innovations. Furthermore, the CFA and SEM analysis reveals that six technological innovation indicators influence the sustainability of the nexus: smart water metering technology, smart metering technology, food quality monitoring technology, agricultural technology solutions, new technological design and eco-friendly WEF products. The sustainability of these three inevitable resources for man’s survival is dependent on technological innovations, and this study has shown the major categories of innovations needed, thus establishing a pathway for engineering design.Resource sustainability in the water, energy and food nexus: role of technological innovation
Love Opeyemi David, Nnamdi Ikechi Nwulu, Clinton Ohis Aigbavboa, Omoseni Oyindamola Adepoju
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

This paper aims to examine the role of technological Innovation in ensuring resource sustainability in the water, energy and food (WEF) nexus, as there exists a shortage of statistical research on the extent of the influence of technological Innovation on the WEF nexus.

The study used a quantitative research method, using a well-structured questionnaire to collect data from management staff in the WEF departments in South Africa. The collected data were analyzed by using mean score ranking, exploratory factor analysis (EFA) and confirmatory factor analysis (CFA) for structural equation modelling (SEM).

The findings show that the technological process of technological innovation is significant for resource sustainability. The result also showed that technological innovations directly and statistically significantly affect WEF nexus. The EFA resulted in three components of WEF nexus product innovation, WEF nexus process innovation and WEF nexus novel innovations. Furthermore, the CFA and SEM analysis reveals that six technological innovation indicators influence the sustainability of the nexus: smart water metering technology, smart metering technology, food quality monitoring technology, agricultural technology solutions, new technological design and eco-friendly WEF products.

The sustainability of these three inevitable resources for man’s survival is dependent on technological innovations, and this study has shown the major categories of innovations needed, thus establishing a pathway for engineering design.

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Resource sustainability in the water, energy and food nexus: role of technological innovation10.1108/JEDT-05-2023-0200Journal of Engineering, Design and Technology2023-11-06© 2023 Emerald Publishing LimitedLove Opeyemi DavidNnamdi Ikechi NwuluClinton Ohis AigbavboaOmoseni Oyindamola AdepojuJournal of Engineering, Design and Technologyahead-of-printahead-of-print2023-11-0610.1108/JEDT-05-2023-0200https://www.emerald.com/insight/content/doi/10.1108/JEDT-05-2023-0200/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2023 Emerald Publishing Limited
Decarbonization of construction projects: a review and interpretive structural modelling of carbon reduction drivershttps://www.emerald.com/insight/content/doi/10.1108/JEDT-05-2023-0202/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestExtant studies have discussed numerous carbon reduction drivers, but there is a dearth of holistic review and understanding of the dynamic interrelationships between the drivers from a system perspective. Thus, this study aims to bridge that gap. The study conducted a review using Preferred Reporting Items for Systematic Reviews and Meta-Analyses and adopted interpretive structural modelling (ISM) to analyse and prioritise the drivers. Eighteen drivers were identified and grouped into five, namely, policy instruments, bid-related, cost and risk, education and training, and reward and penalty drivers. The ISM revealed two hierarchical levels of the drivers with only higher cost of electricity/fuel on the higher level, making it the most important driver that could influence others. The study presents an overview of decarbonisation drivers in the literature and would be of benefit to the government and stakeholders towards achieving net zero emissions in the construction industry. The findings of the study present drivers of carbon reduction and prioritise and categorise them for tailored interventions within the construction sector. Also, it could serve as foundational knowledge for further study in the construction process decarbonisation research area.Decarbonization of construction projects: a review and interpretive structural modelling of carbon reduction drivers
Suhaib Arogundade, Mohammed Dulaimi, Saheed Ajayi, Abdullahi Saka, Olusegun Ilori
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

Extant studies have discussed numerous carbon reduction drivers, but there is a dearth of holistic review and understanding of the dynamic interrelationships between the drivers from a system perspective. Thus, this study aims to bridge that gap.

The study conducted a review using Preferred Reporting Items for Systematic Reviews and Meta-Analyses and adopted interpretive structural modelling (ISM) to analyse and prioritise the drivers.

Eighteen drivers were identified and grouped into five, namely, policy instruments, bid-related, cost and risk, education and training, and reward and penalty drivers. The ISM revealed two hierarchical levels of the drivers with only higher cost of electricity/fuel on the higher level, making it the most important driver that could influence others.

The study presents an overview of decarbonisation drivers in the literature and would be of benefit to the government and stakeholders towards achieving net zero emissions in the construction industry.

The findings of the study present drivers of carbon reduction and prioritise and categorise them for tailored interventions within the construction sector. Also, it could serve as foundational knowledge for further study in the construction process decarbonisation research area.

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Decarbonization of construction projects: a review and interpretive structural modelling of carbon reduction drivers10.1108/JEDT-05-2023-0202Journal of Engineering, Design and Technology2023-11-01© 2023 Emerald Publishing LimitedSuhaib ArogundadeMohammed DulaimiSaheed AjayiAbdullahi SakaOlusegun IloriJournal of Engineering, Design and Technologyahead-of-printahead-of-print2023-11-0110.1108/JEDT-05-2023-0202https://www.emerald.com/insight/content/doi/10.1108/JEDT-05-2023-0202/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2023 Emerald Publishing Limited
Delivering an inclusive built environment for physically disabled people in public universities (Jordan as a case study)https://www.emerald.com/insight/content/doi/10.1108/JEDT-06-2022-0281/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestThis study aims to determine the design factors that may affect the design of disabled students. Additionally, this study assesses and compares the reality between the public Jordanian universities’ built environment and international universities based on the Americans with Disabilities Act checklist – version 2.1 – to provide an accessible built environment for physically disabled people. Furthermore, this study examines the satisfaction degree of physically disabled people with the built environment in selected universities. Besides, this study examines the relationships/interrelationships between the students’ demographic factors, design factors and the degree of the disabled students’ satisfaction. This research used different data collection methods to answer the research questions: literature review, observation and questionnaire. Additionally, this study used different analytical and statistical methods, such as comparative analysis between the local cases and the selected international case study based on the Americans with Disabilities Act checklist, version 2.1, descriptive analysis and Pearson r correlational statistics. This research found that the Jordanian public universities did not apply all required design factors to achieve a high degree of the built environment of accessibility and provide all the requirements and needs of physically disabled students like international universities. Additionally, half of the physically disabled students respondents were satisfied with the availability and quality of pathways, ramps, doors and corridors, non-slippery materials, elevators, accessible entrances, entrances doors, methods of openings, adequate spaces for wheelchair students at the configuration of the entrance and the availability of railing. In contrast, they were unsatisfied with the availability of parking and bathrooms for each gender and signage systems. Moreover, this research found no significant differences between gender and educational level and all factors that may impact the students’ satisfaction with campus environmental design. Furthermore, this research found that there was a strong to very strong positive linear association and a significant correlation/intercorrelation between the availability and the design quality of parking, entrances, doors, lobbies and corridors, bathrooms, signage systems and information, ramps, elevators and stairs and the disabled students’ satisfaction degree. This research tends to help disabled students participate entirely and independently in the built environment and all aspects of society, involve them within the community and facilitate their access to universities’ urban space. This research considers guidelines and checklists for architects and policymakers to apply through all design and retrofitting processes to meet disabled students’ requirements. This research provides a vital understanding of the needs of disabled students in educational spaces to create a barrier-free campus environment. Inclusive design is a relatively new architectural concept. It provides means to ensure access and equal participation in the built environment, offers the opportunity to improve and design new equivalent solutions in architecture simultaneously and covers the way for a broad clarification of equality. Applying the concepts of inclusive design is a step toward eliminating the barriers imposed on the built environment in public universities and creating an accessible built environment. In addition, this research can guide future research in other institutions.Delivering an inclusive built environment for physically disabled people in public universities (Jordan as a case study)
Ahmad A. Alhusban, Salwa N. Almshaqbeh
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

This study aims to determine the design factors that may affect the design of disabled students. Additionally, this study assesses and compares the reality between the public Jordanian universities’ built environment and international universities based on the Americans with Disabilities Act checklist – version 2.1 – to provide an accessible built environment for physically disabled people. Furthermore, this study examines the satisfaction degree of physically disabled people with the built environment in selected universities. Besides, this study examines the relationships/interrelationships between the students’ demographic factors, design factors and the degree of the disabled students’ satisfaction.

This research used different data collection methods to answer the research questions: literature review, observation and questionnaire. Additionally, this study used different analytical and statistical methods, such as comparative analysis between the local cases and the selected international case study based on the Americans with Disabilities Act checklist, version 2.1, descriptive analysis and Pearson r correlational statistics.

This research found that the Jordanian public universities did not apply all required design factors to achieve a high degree of the built environment of accessibility and provide all the requirements and needs of physically disabled students like international universities. Additionally, half of the physically disabled students respondents were satisfied with the availability and quality of pathways, ramps, doors and corridors, non-slippery materials, elevators, accessible entrances, entrances doors, methods of openings, adequate spaces for wheelchair students at the configuration of the entrance and the availability of railing. In contrast, they were unsatisfied with the availability of parking and bathrooms for each gender and signage systems. Moreover, this research found no significant differences between gender and educational level and all factors that may impact the students’ satisfaction with campus environmental design. Furthermore, this research found that there was a strong to very strong positive linear association and a significant correlation/intercorrelation between the availability and the design quality of parking, entrances, doors, lobbies and corridors, bathrooms, signage systems and information, ramps, elevators and stairs and the disabled students’ satisfaction degree.

This research tends to help disabled students participate entirely and independently in the built environment and all aspects of society, involve them within the community and facilitate their access to universities’ urban space. This research considers guidelines and checklists for architects and policymakers to apply through all design and retrofitting processes to meet disabled students’ requirements. This research provides a vital understanding of the needs of disabled students in educational spaces to create a barrier-free campus environment.

Inclusive design is a relatively new architectural concept. It provides means to ensure access and equal participation in the built environment, offers the opportunity to improve and design new equivalent solutions in architecture simultaneously and covers the way for a broad clarification of equality. Applying the concepts of inclusive design is a step toward eliminating the barriers imposed on the built environment in public universities and creating an accessible built environment. In addition, this research can guide future research in other institutions.

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Delivering an inclusive built environment for physically disabled people in public universities (Jordan as a case study)10.1108/JEDT-06-2022-0281Journal of Engineering, Design and Technology2023-03-07© 2023 Emerald Publishing LimitedAhmad A. AlhusbanSalwa N. AlmshaqbehJournal of Engineering, Design and Technologyahead-of-printahead-of-print2023-03-0710.1108/JEDT-06-2022-0281https://www.emerald.com/insight/content/doi/10.1108/JEDT-06-2022-0281/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2023 Emerald Publishing Limited
BIM knowledge transfer in construction industry: a partial least square analysishttps://www.emerald.com/insight/content/doi/10.1108/JEDT-06-2022-0287/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestThere are several technologies positively impacting the management of construction projects. Building information modelling (BIM) is one such technology, slowly changing project delivery. However, enhancing knowledge transfer (KT) within the construction industry is crucial because of the characteristic slow uptake of innovation. Therefore, this study aims to establish the effectiveness of the KT mechanism for BIM implementation in construction organisations. This study adopted a quantitative research method where a structured questionnaire was distributed to construction professionals. A partial least square structural equation modeling path analysis was used to test the direct and indirect relationships of computer self-efficacy (CS), perceived ease of use (PEOU), KT and BIM usage. This study found that CS could improve KT, which will, in turn, increase the implementation of BIM within construction organisations. However, in terms of KT, individuals’ confidence and ability to use BIM inspires them to share the knowledge of BIM they had received through training. Furthermore, this study found that the ease of interacting, learning and being skilful with BIM may not necessarily ensure the actual transfer of knowledge. This study provides valuable insights into KTs (BIM implementation) in the construction industry. It will enhance the use of BIM systems and related knowledge through effective training amongst construction practitioners. Other previous studies have focused on challenges and barriers to BIM implementation, this study goes deeper into establishing the effectiveness of the KT mechanism for BIM implementation in construction organisations.BIM knowledge transfer in construction industry: a partial least square analysis
Esther Oluwadamilola Olufemi Rotimi, Funmilayo Ebun Rotimi, C.W. Chathurani Silva, Itohan Esther Aigwi
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

There are several technologies positively impacting the management of construction projects. Building information modelling (BIM) is one such technology, slowly changing project delivery. However, enhancing knowledge transfer (KT) within the construction industry is crucial because of the characteristic slow uptake of innovation. Therefore, this study aims to establish the effectiveness of the KT mechanism for BIM implementation in construction organisations.

This study adopted a quantitative research method where a structured questionnaire was distributed to construction professionals. A partial least square structural equation modeling path analysis was used to test the direct and indirect relationships of computer self-efficacy (CS), perceived ease of use (PEOU), KT and BIM usage.

This study found that CS could improve KT, which will, in turn, increase the implementation of BIM within construction organisations. However, in terms of KT, individuals’ confidence and ability to use BIM inspires them to share the knowledge of BIM they had received through training. Furthermore, this study found that the ease of interacting, learning and being skilful with BIM may not necessarily ensure the actual transfer of knowledge.

This study provides valuable insights into KTs (BIM implementation) in the construction industry. It will enhance the use of BIM systems and related knowledge through effective training amongst construction practitioners. Other previous studies have focused on challenges and barriers to BIM implementation, this study goes deeper into establishing the effectiveness of the KT mechanism for BIM implementation in construction organisations.

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BIM knowledge transfer in construction industry: a partial least square analysis10.1108/JEDT-06-2022-0287Journal of Engineering, Design and Technology2022-11-09© 2022 Emerald Publishing LimitedEsther Oluwadamilola Olufemi RotimiFunmilayo Ebun RotimiC.W. Chathurani SilvaItohan Esther AigwiJournal of Engineering, Design and Technologyahead-of-printahead-of-print2022-11-0910.1108/JEDT-06-2022-0287https://www.emerald.com/insight/content/doi/10.1108/JEDT-06-2022-0287/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2022 Emerald Publishing Limited
Strategies to promote the acceptance of sandbag building technology for sustainable and affordable housing delivery: the South African casehttps://www.emerald.com/insight/content/doi/10.1108/JEDT-06-2022-0290/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestSandbag building technologies (SBTs) have been offered as a cost-effective and sustainable alternative building technology (ABT) capable of accelerating house construction in South Africa, but its acceptance remains low. However, knowledge about how to effectively improve SBT social acceptance is limited. This study aims to develop and prioritise SBT social acceptability strategies towards providing a comprehensive framework for the successful deployment and widespread adoption of sandbag technology. This study used a quantitative research strategy that included a literature review and a structured questionnaire survey of 228 ABT professionals and stakeholders in the South African housing industry. The study statistically analysed 13 strategies for the social acceptance of SBT. The analysis showed that the top three strategies include the availability of sandbag demonstration projects in all provinces, the approval of a sandbag building code and the availability of standard design methods for earthbags. A factor analysis clustered the 13 strategies into Stakeholders integration and policy formation, Effective education and knowledge sharing and Grassroots advocacy and incentives. The current study’s findings provide a broad framework for the effective implementation and wide acceptance of sandbag technology in housing projects. It offered certain best practices that policymakers and practitioners might use to promote ABT and SBT societal acceptability. To the best of the authors’ knowledge, the study represents the first and only attempt to investigate the viewpoints of experts and housing market stakeholders in South Africa regarding sandbag technology social acceptance strategies and contributes to the social acceptance body of knowledge in ABT and SBT.Strategies to promote the acceptance of sandbag building technology for sustainable and affordable housing delivery: the South African case
Johnson Adetooto, Abimbola Windapo, Francesco Pomponi, Fabio Companie, Kehinde Alade, Amanda Mtya
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

Sandbag building technologies (SBTs) have been offered as a cost-effective and sustainable alternative building technology (ABT) capable of accelerating house construction in South Africa, but its acceptance remains low. However, knowledge about how to effectively improve SBT social acceptance is limited. This study aims to develop and prioritise SBT social acceptability strategies towards providing a comprehensive framework for the successful deployment and widespread adoption of sandbag technology.

This study used a quantitative research strategy that included a literature review and a structured questionnaire survey of 228 ABT professionals and stakeholders in the South African housing industry. The study statistically analysed 13 strategies for the social acceptance of SBT.

The analysis showed that the top three strategies include the availability of sandbag demonstration projects in all provinces, the approval of a sandbag building code and the availability of standard design methods for earthbags. A factor analysis clustered the 13 strategies into Stakeholders integration and policy formation, Effective education and knowledge sharing and Grassroots advocacy and incentives.

The current study’s findings provide a broad framework for the effective implementation and wide acceptance of sandbag technology in housing projects. It offered certain best practices that policymakers and practitioners might use to promote ABT and SBT societal acceptability.

To the best of the authors’ knowledge, the study represents the first and only attempt to investigate the viewpoints of experts and housing market stakeholders in South Africa regarding sandbag technology social acceptance strategies and contributes to the social acceptance body of knowledge in ABT and SBT.

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Strategies to promote the acceptance of sandbag building technology for sustainable and affordable housing delivery: the South African case10.1108/JEDT-06-2022-0290Journal of Engineering, Design and Technology2022-10-31© 2022 Johnson Adetooto, Abimbola Windapo, Francesco Pomponi, Fabio Companie, Amanda Mtya and Kehinde AladeJohnson AdetootoAbimbola WindapoFrancesco PomponiFabio CompanieKehinde AladeAmanda MtyaJournal of Engineering, Design and Technologyahead-of-printahead-of-print2022-10-3110.1108/JEDT-06-2022-0290https://www.emerald.com/insight/content/doi/10.1108/JEDT-06-2022-0290/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2022 Johnson Adetooto, Abimbola Windapo, Francesco Pomponi, Fabio Companie, Amanda Mtya and Kehinde Alade
Evaluation of risks affecting international construction joint venture (ICJV) projects in Ghanahttps://www.emerald.com/insight/content/doi/10.1108/JEDT-06-2022-0299/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestThe failure rate of international construction joint venture (ICJV) projects has been noted to be high in developing countries due to the complexity and risky nature of construction projects in the international market. The purpose of this study is to identify and evaluate the risks facing ICJV projects in Ghana. A risk register was developed through a comprehensive literature review. The identified risks were then used in a questionnaire survey involving local and foreign partners in ICJV projects in Ghana. From a total of 74 risks identified, categorized into country-level risks, market-level risks and project-level risks, the “top ten” risks found to be the most critical risks facing ICJV projects in Ghana include unstable currency exchange rates, inflation, design changes, high-interest rate, budget overrun, cash flow problems of the client, economy fluctuation, difficulty in obtaining approval of projects from host government authorities/bureaucracy, potential financial distress of JV partner and bribery and corruption. This study provides a comprehensive list of risks ICJV partners are likely to encounter on their projects in developing countries. Furthermore, this study improves on one of the major limitations of previous ICJV studies by collecting data from both partners of the ICJV, appropriate for cross-cultural examination and comparison.Evaluation of risks affecting international construction joint venture (ICJV) projects in Ghana
Stephen Akunyumu, Frank Fugar, Emmanuel Adinyira
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

The failure rate of international construction joint venture (ICJV) projects has been noted to be high in developing countries due to the complexity and risky nature of construction projects in the international market. The purpose of this study is to identify and evaluate the risks facing ICJV projects in Ghana.

A risk register was developed through a comprehensive literature review. The identified risks were then used in a questionnaire survey involving local and foreign partners in ICJV projects in Ghana.

From a total of 74 risks identified, categorized into country-level risks, market-level risks and project-level risks, the “top ten” risks found to be the most critical risks facing ICJV projects in Ghana include unstable currency exchange rates, inflation, design changes, high-interest rate, budget overrun, cash flow problems of the client, economy fluctuation, difficulty in obtaining approval of projects from host government authorities/bureaucracy, potential financial distress of JV partner and bribery and corruption.

This study provides a comprehensive list of risks ICJV partners are likely to encounter on their projects in developing countries. Furthermore, this study improves on one of the major limitations of previous ICJV studies by collecting data from both partners of the ICJV, appropriate for cross-cultural examination and comparison.

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Evaluation of risks affecting international construction joint venture (ICJV) projects in Ghana10.1108/JEDT-06-2022-0299Journal of Engineering, Design and Technology2023-01-13© 2022 Emerald Publishing LimitedStephen AkunyumuFrank FugarEmmanuel AdinyiraJournal of Engineering, Design and Technologyahead-of-printahead-of-print2023-01-1310.1108/JEDT-06-2022-0299https://www.emerald.com/insight/content/doi/10.1108/JEDT-06-2022-0299/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2022 Emerald Publishing Limited
Factors impeding the implementation of buildability assessment in building construction industryhttps://www.emerald.com/insight/content/doi/10.1108/JEDT-06-2022-0304/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestBuildability assessment is an important tool used in improving buildability of building designs. Its practice has positive impact on construction project such as cost-saving, material waste reduction, labour-saving technologies, increase in efficiency, saving wasteful efforts and quality improvement as well as cost-effective methods of site construction and future maintenance. However, there are several factors hindering building construction industry to implement buildability assessment. In addition, there are few studies that described the factors impeding the implementation of buildability assessment in construction industry. This study aims to determine the factors impeding buildability assessment implementation in the Nigerian building construction industry Quantitative research method was adopted for the study. Questionnaires were administered to purposively selected group of architects, engineers, builders and quantity surveyors. A total of 368 questionnaires were distributed among the sampled participants, out of which a total of 219 representing 60% were sufficiently filled and returned. Data elicited were analysed using inferential and descriptive statistics. The results revealed that “poor co-ordination amongst different design disciplines”, “lack of buildability assessment awareness”, “design review pattern where construction personnel (builders) are invited to assess the building production information”, “unwillingness to invest extra money and effort during the early stage of project” and “designers value aesthetics and functionalities more than buildability in their designs” are the topmost five factors impeding buildability assessment implementation in the Nigerian construction industry. This study highlights factors impeding the implementation of buildability assessment in construction industry. An understanding of these factors can help stakeholders in the construction industry facilitate the development of strategies required to mitigate the factors impeding buildability assessment implementation in the sector.Factors impeding the implementation of buildability assessment in building construction industry
Innocent Chigozie Osuizugbo
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

Buildability assessment is an important tool used in improving buildability of building designs. Its practice has positive impact on construction project such as cost-saving, material waste reduction, labour-saving technologies, increase in efficiency, saving wasteful efforts and quality improvement as well as cost-effective methods of site construction and future maintenance. However, there are several factors hindering building construction industry to implement buildability assessment. In addition, there are few studies that described the factors impeding the implementation of buildability assessment in construction industry. This study aims to determine the factors impeding buildability assessment implementation in the Nigerian building construction industry

Quantitative research method was adopted for the study. Questionnaires were administered to purposively selected group of architects, engineers, builders and quantity surveyors. A total of 368 questionnaires were distributed among the sampled participants, out of which a total of 219 representing 60% were sufficiently filled and returned. Data elicited were analysed using inferential and descriptive statistics.

The results revealed that “poor co-ordination amongst different design disciplines”, “lack of buildability assessment awareness”, “design review pattern where construction personnel (builders) are invited to assess the building production information”, “unwillingness to invest extra money and effort during the early stage of project” and “designers value aesthetics and functionalities more than buildability in their designs” are the topmost five factors impeding buildability assessment implementation in the Nigerian construction industry.

This study highlights factors impeding the implementation of buildability assessment in construction industry. An understanding of these factors can help stakeholders in the construction industry facilitate the development of strategies required to mitigate the factors impeding buildability assessment implementation in the sector.

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Factors impeding the implementation of buildability assessment in building construction industry10.1108/JEDT-06-2022-0304Journal of Engineering, Design and Technology2023-01-10© 2022 Emerald Publishing LimitedInnocent Chigozie OsuizugboJournal of Engineering, Design and Technologyahead-of-printahead-of-print2023-01-1010.1108/JEDT-06-2022-0304https://www.emerald.com/insight/content/doi/10.1108/JEDT-06-2022-0304/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2022 Emerald Publishing Limited
Facilities management strategic roles and services quality performance in Nigeria’s banking sectorhttps://www.emerald.com/insight/content/doi/10.1108/JEDT-06-2022-0313/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestFacilities management (FM) as a strategic management tool has been an attractive research topic among scholars and practitioners alike for decades. The primary purpose of this paper is threefold: to assess the extent of use of FM roles (strategic, tactical and operational); to examine user satisfaction of service quality performance; and to analyse the influence of FM roles on service quality performance using data from Nigeria’s banking sector. Relying on exploratory cross-sectional survey, 350 copies of a structured questionnaire were purposively distributed to senior management staff, bank staff, FM supervisors and bank customers in Lagos, Nigeria. One hundred and forty valid responses were returned to give a response rate of 40%. Data collected were analysed using descriptive, Spearman rank correlation and Kruskal–Wallis tests. It was discovered that strategic facilities planning, IT planning strategy and real estate decisions are the most important FM roles at the strategic level; resource management, data control and planning change at the tactical level; and implementations, building operations and emergencies at the operation level. Findings equally revealed that visual appealing of materials associated with services (tangibles), insisting on error-free records (reliability), willing to help (responsiveness), having the knowledge to answer questions (assurance) and giving individualised attention (empathy) were the most important service quality performance indicators. Furthermore, the study revealed that strategic FM roles significantly influenced tangibles, reliability and responsiveness of staff and the services. Besides, tactical FM roles significantly influenced all service quality indicators except assurance, while operational FM roles had significant influence on tangibles, responsiveness and empathy. To the best of the author’s knowledge, this study has provided first ever insight into the extent of FM strategic roles in the banking sector and influence of FM roles on service quality performance.Facilities management strategic roles and services quality performance in Nigeria’s banking sector
Dubem Isaac Ikediashi
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

Facilities management (FM) as a strategic management tool has been an attractive research topic among scholars and practitioners alike for decades. The primary purpose of this paper is threefold: to assess the extent of use of FM roles (strategic, tactical and operational); to examine user satisfaction of service quality performance; and to analyse the influence of FM roles on service quality performance using data from Nigeria’s banking sector.

Relying on exploratory cross-sectional survey, 350 copies of a structured questionnaire were purposively distributed to senior management staff, bank staff, FM supervisors and bank customers in Lagos, Nigeria. One hundred and forty valid responses were returned to give a response rate of 40%. Data collected were analysed using descriptive, Spearman rank correlation and Kruskal–Wallis tests.

It was discovered that strategic facilities planning, IT planning strategy and real estate decisions are the most important FM roles at the strategic level; resource management, data control and planning change at the tactical level; and implementations, building operations and emergencies at the operation level. Findings equally revealed that visual appealing of materials associated with services (tangibles), insisting on error-free records (reliability), willing to help (responsiveness), having the knowledge to answer questions (assurance) and giving individualised attention (empathy) were the most important service quality performance indicators. Furthermore, the study revealed that strategic FM roles significantly influenced tangibles, reliability and responsiveness of staff and the services. Besides, tactical FM roles significantly influenced all service quality indicators except assurance, while operational FM roles had significant influence on tangibles, responsiveness and empathy.

To the best of the author’s knowledge, this study has provided first ever insight into the extent of FM strategic roles in the banking sector and influence of FM roles on service quality performance.

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Facilities management strategic roles and services quality performance in Nigeria’s banking sector10.1108/JEDT-06-2022-0313Journal of Engineering, Design and Technology2023-02-13© 2023 Emerald Publishing LimitedDubem Isaac IkediashiJournal of Engineering, Design and Technologyahead-of-printahead-of-print2023-02-1310.1108/JEDT-06-2022-0313https://www.emerald.com/insight/content/doi/10.1108/JEDT-06-2022-0313/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2023 Emerald Publishing Limited
Residential satisfaction of vertical urban settlements in Hong Konghttps://www.emerald.com/insight/content/doi/10.1108/JEDT-06-2022-0323/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestVertical urban settlements are becoming the predominant form of contemporary urban design in response to population increase and rapid urbanization. These developments are, however, perceived to be poorly designed and incongruent with the users’ needs. The purpose of this study was to present a resident satisfaction assessment of Hong Kong’s vertical settlements. A review of the literature was conducted on the concept of vertical urbanism, residential satisfaction and postoccupancy evaluation. Fifty performance indicators were classified into three groups including indoor environment, safety and maintenance; furniture, utilities and spaces; and privacy, appearance and city life. These indicators were used to develop a Web-based questionnaire administered to residents in the three administrative regions of Hong Kong. Ninety-eight respondents participated in the study, and the results were analyzed using the resident satisfaction index and the overall satisfaction index. A multilinear regression analysis was also made to develop a model describing the most relevant performance indicators for determining the overall residential satisfaction. The results revealed that residents expressed dissatisfaction with performance indicators, including “level of noise generated from outside the building (neighboring buildings, traffic, noise, etc.),” “variation and stability of indoor temperature,” “sustainable design of the building’s environment (cyclability, walkability, electric charging stations, etc.),” “availability and capacity of car parking,” “size and adequacy of spaces for social interaction” and “considerations for occupants with special needs (disabled, aged people, children, occupants with a medical condition, etc.).” The results also revealed that some indicators such as the maintenance of elevators, adequate interior space and surrounding areas were considered as significantly influencing residential satisfaction. Similarly, the building height and wind-induced motion were not significantly influencing residential satisfaction. The results also revealed that a multilinear Regression model with five variables and an adjusted R2 value of 93% could estimate the overall residential satisfaction. The concept of vertical urban design is the new paradigm in the shaping of future cities. The originality of this study is its adoption of post-occupancy evaluation to assess occupants’ residential satisfaction. As well as the determination of factors that should inform the planning, design and management of vertical urban settlements. Thus, the study has significant implications for research in vertical urban development, as well as the professional practice of building and urban planners, designers and managers.Residential satisfaction of vertical urban settlements in Hong Kong
Muizz Oladapo Sanni-Anibire, Yusuf A. Adenle
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

Vertical urban settlements are becoming the predominant form of contemporary urban design in response to population increase and rapid urbanization. These developments are, however, perceived to be poorly designed and incongruent with the users’ needs. The purpose of this study was to present a resident satisfaction assessment of Hong Kong’s vertical settlements.

A review of the literature was conducted on the concept of vertical urbanism, residential satisfaction and postoccupancy evaluation. Fifty performance indicators were classified into three groups including indoor environment, safety and maintenance; furniture, utilities and spaces; and privacy, appearance and city life. These indicators were used to develop a Web-based questionnaire administered to residents in the three administrative regions of Hong Kong. Ninety-eight respondents participated in the study, and the results were analyzed using the resident satisfaction index and the overall satisfaction index. A multilinear regression analysis was also made to develop a model describing the most relevant performance indicators for determining the overall residential satisfaction.

The results revealed that residents expressed dissatisfaction with performance indicators, including “level of noise generated from outside the building (neighboring buildings, traffic, noise, etc.),” “variation and stability of indoor temperature,” “sustainable design of the building’s environment (cyclability, walkability, electric charging stations, etc.),” “availability and capacity of car parking,” “size and adequacy of spaces for social interaction” and “considerations for occupants with special needs (disabled, aged people, children, occupants with a medical condition, etc.).” The results also revealed that some indicators such as the maintenance of elevators, adequate interior space and surrounding areas were considered as significantly influencing residential satisfaction. Similarly, the building height and wind-induced motion were not significantly influencing residential satisfaction. The results also revealed that a multilinear Regression model with five variables and an adjusted R2 value of 93% could estimate the overall residential satisfaction.

The concept of vertical urban design is the new paradigm in the shaping of future cities. The originality of this study is its adoption of post-occupancy evaluation to assess occupants’ residential satisfaction. As well as the determination of factors that should inform the planning, design and management of vertical urban settlements. Thus, the study has significant implications for research in vertical urban development, as well as the professional practice of building and urban planners, designers and managers.

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Residential satisfaction of vertical urban settlements in Hong Kong10.1108/JEDT-06-2022-0323Journal of Engineering, Design and Technology2022-12-09© 2022 Emerald Publishing LimitedMuizz Oladapo Sanni-AnibireYusuf A. AdenleJournal of Engineering, Design and Technologyahead-of-printahead-of-print2022-12-0910.1108/JEDT-06-2022-0323https://www.emerald.com/insight/content/doi/10.1108/JEDT-06-2022-0323/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2022 Emerald Publishing Limited
Building mechanism of the initial trust motivation of owners toward contractorshttps://www.emerald.com/insight/content/doi/10.1108/JEDT-06-2022-0331/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestThis paper aims to study the initial trust of the owner to the contractor, establish the initial trust mechanism, explore the factors that affect the initial trust of the owner to the contractor and analyze its influence mechanism. Based on this, it is easy for the owners and contractors to take targeted measures to improve the initial trust, which is conducive to the sustainable development of the project. On the basis of reading a large amount of literature, this paper constructs the occurrence mechanism of the owner's initial trust to the contractor from the five factors of trust propensity, trust belief, trustee’s characteristics, institution-based trust, trust motivation and from the perspective of the owner using the structural equation model for questionnaire survey and empirical analysis. The results of this paper show that the institution-based trust, the trustee’s characteristics and the trust belief of the trustor clearly have a positive effect on trust motivation, and the trustee’s characteristics have the most significant effect on the trust motivation. The influence of trust propensity on trust motivation was not significant. This paper studies the occurrence mechanism of the owner's initial trust in the contractor, discusses its influencing factors and analyzes the influence of these factors on the initial trust, which enriches the theoretical system of initial trust research. The results of this study can help owners and contractors to develop targeted measures to build good initial trust.Building mechanism of the initial trust motivation of owners toward contractors
Huimin Li, Mengxuan Liang, Han Han, Wenjuan Zhang
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

This paper aims to study the initial trust of the owner to the contractor, establish the initial trust mechanism, explore the factors that affect the initial trust of the owner to the contractor and analyze its influence mechanism. Based on this, it is easy for the owners and contractors to take targeted measures to improve the initial trust, which is conducive to the sustainable development of the project.

On the basis of reading a large amount of literature, this paper constructs the occurrence mechanism of the owner's initial trust to the contractor from the five factors of trust propensity, trust belief, trustee’s characteristics, institution-based trust, trust motivation and from the perspective of the owner using the structural equation model for questionnaire survey and empirical analysis.

The results of this paper show that the institution-based trust, the trustee’s characteristics and the trust belief of the trustor clearly have a positive effect on trust motivation, and the trustee’s characteristics have the most significant effect on the trust motivation. The influence of trust propensity on trust motivation was not significant.

This paper studies the occurrence mechanism of the owner's initial trust in the contractor, discusses its influencing factors and analyzes the influence of these factors on the initial trust, which enriches the theoretical system of initial trust research. The results of this study can help owners and contractors to develop targeted measures to build good initial trust.

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Building mechanism of the initial trust motivation of owners toward contractors10.1108/JEDT-06-2022-0331Journal of Engineering, Design and Technology2023-06-16© 2023 Emerald Publishing LimitedHuimin LiMengxuan LiangHan HanWenjuan ZhangJournal of Engineering, Design and Technologyahead-of-printahead-of-print2023-06-1610.1108/JEDT-06-2022-0331https://www.emerald.com/insight/content/doi/10.1108/JEDT-06-2022-0331/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2023 Emerald Publishing Limited
Public monitoring of environmental management plan implementation in road construction projects: key performance indicatorshttps://www.emerald.com/insight/content/doi/10.1108/JEDT-06-2023-0225/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestThis study aims to examine the performance indicators (PIs) for assessing environmental management plan (EMP) implementation in road construction projects. The specific objectives are to compare the key PIs between environment auditors and environment officers and among project stakeholders, develop components to categorize interrelated key PIs and evaluate the effectiveness of interrelated key PIs and components. Thirty-nine PIs were identified through a systematic literature review and in-depth interviews with environmental professionals. Subsequently, a questionnaire survey was designed based on this list of PIs and distributed to industry professionals. Sixty-one responses were collected in Malaysia and analyzed using the mean score ranking, normalization, agreement analysis, overlap analysis, factor analysis and fuzzy synthetic evaluation. The analyses identified 18 key PIs: soil erosion, dust appearance, spill of chemical substance, construction waste, clogged drainage, overflowed silt trap, oil/fuel spills, changes in the colour of bodies of water, excessive cut and fill, vegetation depletion, changes in the colour of the runoff water, landslide occurrence, slope failures, irregular flood, public safety, deforestation, open burning and increased of schedule waste. Also, the key PIs can be grouped and ranked into the following four components: geological, pollution, environmental changes and ecological. Finally, the overall importance of the key PIs is between important and very important. This study is a pioneer in quantitively examining the key PIs for EMP implementation in road construction projects. Researchers, industry practitioners and policymakers can use the findings to develop strategies and tools to allow public monitoring of EMP implementation.Public monitoring of environmental management plan implementation in road construction projects: key performance indicators
Nurol Huda Dahalan, Rahimi A. Rahman, Saffuan Wan Ahmad, Che Khairil Izam Che Ibrahim
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

This study aims to examine the performance indicators (PIs) for assessing environmental management plan (EMP) implementation in road construction projects. The specific objectives are to compare the key PIs between environment auditors and environment officers and among project stakeholders, develop components to categorize interrelated key PIs and evaluate the effectiveness of interrelated key PIs and components.

Thirty-nine PIs were identified through a systematic literature review and in-depth interviews with environmental professionals. Subsequently, a questionnaire survey was designed based on this list of PIs and distributed to industry professionals. Sixty-one responses were collected in Malaysia and analyzed using the mean score ranking, normalization, agreement analysis, overlap analysis, factor analysis and fuzzy synthetic evaluation.

The analyses identified 18 key PIs: soil erosion, dust appearance, spill of chemical substance, construction waste, clogged drainage, overflowed silt trap, oil/fuel spills, changes in the colour of bodies of water, excessive cut and fill, vegetation depletion, changes in the colour of the runoff water, landslide occurrence, slope failures, irregular flood, public safety, deforestation, open burning and increased of schedule waste. Also, the key PIs can be grouped and ranked into the following four components: geological, pollution, environmental changes and ecological. Finally, the overall importance of the key PIs is between important and very important.

This study is a pioneer in quantitively examining the key PIs for EMP implementation in road construction projects. Researchers, industry practitioners and policymakers can use the findings to develop strategies and tools to allow public monitoring of EMP implementation.

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Public monitoring of environmental management plan implementation in road construction projects: key performance indicators10.1108/JEDT-06-2023-0225Journal of Engineering, Design and Technology2023-10-19© 2023 Emerald Publishing LimitedNurol Huda DahalanRahimi A. RahmanSaffuan Wan AhmadChe Khairil Izam Che IbrahimJournal of Engineering, Design and Technologyahead-of-printahead-of-print2023-10-1910.1108/JEDT-06-2023-0225https://www.emerald.com/insight/content/doi/10.1108/JEDT-06-2023-0225/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2023 Emerald Publishing Limited
Critical components for successful BIM-based sustainable building design collaboration: structural equation model analysishttps://www.emerald.com/insight/content/doi/10.1108/JEDT-06-2023-0235/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestThe efficient application of building information modeling (BIM) methodology in the sustainable building design process, known as green BIM, provides ideal leverage to significantly enhance multidiscipline team collaboration. However, the practical execution of green BIM is characterized by issues such as duplication of work, information silos and poor cross-party coordination. Besides, there are limited studies on the specific components that are critical to driving green BIM collaborative design. This study aims to establish the critical components of green BIM collaborative design to enable the multidiscipline team to effectively use diverse software to collaboratively exchange accurate information, thus ensuring informed decision-making in the sustainable building design process. Data were obtained by using a questionnaire to survey 360 respondents comprising mainly architects and engineers (civil, mechanical and electrical) in Malaysia. Subsequently, data were analyzed via confirmatory factor analysis. Afterward, a measurement model was established and used to test the 11 hypotheses of this study. A covariance-based structural equation model of the critical components for successful BIM-based sustainable building design collaboration was established. The research findings will guide the multidisciplinary team to collaboratively exchange accurate information in green BIM practices. To the best of the authors’ knowledge, this research is the first attempt in the literature to provide a pragmatic approach for practitioners to combine the established critical components of green BIM to collaboratively exchange heterogeneous sustainability criteria and efficiently design buildings with high sustainability performance, particularly in emerging countries like Malaysia.Critical components for successful BIM-based sustainable building design collaboration: structural equation model analysis
Chukwuka Christian Ohueri, San Chuin Liew, Jibril Adewale Bamgbade, Wallace Imoudu Enegbuma
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

The efficient application of building information modeling (BIM) methodology in the sustainable building design process, known as green BIM, provides ideal leverage to significantly enhance multidiscipline team collaboration. However, the practical execution of green BIM is characterized by issues such as duplication of work, information silos and poor cross-party coordination. Besides, there are limited studies on the specific components that are critical to driving green BIM collaborative design. This study aims to establish the critical components of green BIM collaborative design to enable the multidiscipline team to effectively use diverse software to collaboratively exchange accurate information, thus ensuring informed decision-making in the sustainable building design process.

Data were obtained by using a questionnaire to survey 360 respondents comprising mainly architects and engineers (civil, mechanical and electrical) in Malaysia. Subsequently, data were analyzed via confirmatory factor analysis. Afterward, a measurement model was established and used to test the 11 hypotheses of this study.

A covariance-based structural equation model of the critical components for successful BIM-based sustainable building design collaboration was established.

The research findings will guide the multidisciplinary team to collaboratively exchange accurate information in green BIM practices.

To the best of the authors’ knowledge, this research is the first attempt in the literature to provide a pragmatic approach for practitioners to combine the established critical components of green BIM to collaboratively exchange heterogeneous sustainability criteria and efficiently design buildings with high sustainability performance, particularly in emerging countries like Malaysia.

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Critical components for successful BIM-based sustainable building design collaboration: structural equation model analysis10.1108/JEDT-06-2023-0235Journal of Engineering, Design and Technology2023-10-31© 2023 Emerald Publishing LimitedChukwuka Christian OhueriSan Chuin LiewJibril Adewale BamgbadeWallace Imoudu EnegbumaJournal of Engineering, Design and Technologyahead-of-printahead-of-print2023-10-3110.1108/JEDT-06-2023-0235https://www.emerald.com/insight/content/doi/10.1108/JEDT-06-2023-0235/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2023 Emerald Publishing Limited
Enhancing project manager communication soft skills and risk management practices in Libyan oil and gas construction projects: the role of experiencehttps://www.emerald.com/insight/content/doi/10.1108/JEDT-06-2023-0237/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestAlthough there has been an increase in the application of a variety of robust technologies and systems, the oil and gas sector relies on project managers’ soft skills for success because of their vital role. Therefore, this study aims to explore the profound influence of project managers’ soft communication skills on successful risk management within Libya’s oil and gas projects. A review of relevant literature and a quantitative approach through the administration of a questionnaire were used to determine factors impacting risk management implementation related to managerial communication skills. A total of 246 valid responses were received from the oil and gas companies in Tripoli, Libya. Partial least squares structural equation modelling was used to examine the direct and moderating relationship drawn by the hypotheses. The findings suggest that managerial soft skills may be used to improve continuous risk management processes and intra-project communication. It was found that the experience is strengthening the positive relationship between written communication soft skills and project risk management implementation among Libyan oil and gas construction projects. This study defines project managers’ soft communication skills and analyzes project managers’ soft communication skills with the role of experience as a moderator. This paper presents a valuable contribution by offering original insights tailored explicitly to the Libyan context. The information presented in this paper is relevant to project managers operating within the oil and gas industry. It also offers a novel approach to risk management in the Libyan oil and gas industry that can improve project efficiency and effectiveness.Enhancing project manager communication soft skills and risk management practices in Libyan oil and gas construction projects: the role of experience
Mohamed Elkbuli, Nurhidayah Azmy, Chia Kuang Lee
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

Although there has been an increase in the application of a variety of robust technologies and systems, the oil and gas sector relies on project managers’ soft skills for success because of their vital role. Therefore, this study aims to explore the profound influence of project managers’ soft communication skills on successful risk management within Libya’s oil and gas projects.

A review of relevant literature and a quantitative approach through the administration of a questionnaire were used to determine factors impacting risk management implementation related to managerial communication skills. A total of 246 valid responses were received from the oil and gas companies in Tripoli, Libya. Partial least squares structural equation modelling was used to examine the direct and moderating relationship drawn by the hypotheses.

The findings suggest that managerial soft skills may be used to improve continuous risk management processes and intra-project communication. It was found that the experience is strengthening the positive relationship between written communication soft skills and project risk management implementation among Libyan oil and gas construction projects.

This study defines project managers’ soft communication skills and analyzes project managers’ soft communication skills with the role of experience as a moderator. This paper presents a valuable contribution by offering original insights tailored explicitly to the Libyan context. The information presented in this paper is relevant to project managers operating within the oil and gas industry. It also offers a novel approach to risk management in the Libyan oil and gas industry that can improve project efficiency and effectiveness.

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Enhancing project manager communication soft skills and risk management practices in Libyan oil and gas construction projects: the role of experience10.1108/JEDT-06-2023-0237Journal of Engineering, Design and Technology2024-01-19© 2024 Emerald Publishing LimitedMohamed ElkbuliNurhidayah AzmyChia Kuang LeeJournal of Engineering, Design and Technologyahead-of-printahead-of-print2024-01-1910.1108/JEDT-06-2023-0237https://www.emerald.com/insight/content/doi/10.1108/JEDT-06-2023-0237/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2024 Emerald Publishing Limited
Quantifying BIM investment value: a systematic reviewhttps://www.emerald.com/insight/content/doi/10.1108/JEDT-06-2023-0259/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestPerceived benefits of building information modelling (BIM) have been discussed for some time, but cost–benefit benchmarking has been inconsistent. The purpose of this paper is to investigate BIM feasibility and evaluate investment worth to elucidate and develop the current understanding of BIM merit. The aim of the study is to propose a research agenda towards a more holistic perspective of BIM use incorporating quantifying investment return. An in-depth examination of research patterns has been conducted to identify challenges in the assessment of the investment value and return on investment (ROI) for BIM in the construction industry. A total of 75 research articles were considered for the final literature review. An evaluation of the literature is conducted using a combination of bibliometric analysis and systematic reviews. This study, which analysed 75 articles, unveils key findings in quantifying BIM benefits, primarily through ROI calculation. Two major research gaps are identified: the absence of a standardized BIM ROI method and insufficient exploration of intangible benefits. Research focus varies across phases, emphasizing design and construction integration and exploring post-construction phases. The study categorizes quantifiable factors, including productivity, changes and rework reduction, requests for information reduction, schedule efficiency, safety, environmental sustainability and operations and facility management. These findings offer vital insights for researchers and practitioners, enhancing understanding of ’BIM’s financial benefits and signalling areas for further exploration in construction. The ’study’s outcomes offer the latest insights for researchers and practitioners to create effective approaches for quantifying ’BIM’s financial benefits. Additionally, the proposed research agenda aims to improve the current limited understanding of BIM feasibility and investment worth evaluation. Results of the study could assist practitioners in overcoming limitations associated with BIM investment and economic evaluations in the construction industry.Quantifying BIM investment value: a systematic review
Lina Gharaibeh, Kristina Eriksson, Björn Lantz
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

Perceived benefits of building information modelling (BIM) have been discussed for some time, but cost–benefit benchmarking has been inconsistent. The purpose of this paper is to investigate BIM feasibility and evaluate investment worth to elucidate and develop the current understanding of BIM merit. The aim of the study is to propose a research agenda towards a more holistic perspective of BIM use incorporating quantifying investment return.

An in-depth examination of research patterns has been conducted to identify challenges in the assessment of the investment value and return on investment (ROI) for BIM in the construction industry. A total of 75 research articles were considered for the final literature review. An evaluation of the literature is conducted using a combination of bibliometric analysis and systematic reviews.

This study, which analysed 75 articles, unveils key findings in quantifying BIM benefits, primarily through ROI calculation. Two major research gaps are identified: the absence of a standardized BIM ROI method and insufficient exploration of intangible benefits. Research focus varies across phases, emphasizing design and construction integration and exploring post-construction phases. The study categorizes quantifiable factors, including productivity, changes and rework reduction, requests for information reduction, schedule efficiency, safety, environmental sustainability and operations and facility management. These findings offer vital insights for researchers and practitioners, enhancing understanding of ’BIM’s financial benefits and signalling areas for further exploration in construction.

The ’study’s outcomes offer the latest insights for researchers and practitioners to create effective approaches for quantifying ’BIM’s financial benefits. Additionally, the proposed research agenda aims to improve the current limited understanding of BIM feasibility and investment worth evaluation. Results of the study could assist practitioners in overcoming limitations associated with BIM investment and economic evaluations in the construction industry.

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Quantifying BIM investment value: a systematic review10.1108/JEDT-06-2023-0259Journal of Engineering, Design and Technology2024-03-13© 2024 Lina Gharaibeh, Kristina Eriksson and Björn Lantz.Lina GharaibehKristina ErikssonBjörn LantzJournal of Engineering, Design and Technologyahead-of-printahead-of-print2024-03-1310.1108/JEDT-06-2023-0259https://www.emerald.com/insight/content/doi/10.1108/JEDT-06-2023-0259/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2024 Lina Gharaibeh, Kristina Eriksson and Björn Lantz.http://creativecommons.org/licences/by/4.0/legalcode
Commuting and its relationship with health and engagement of civil construction workershttps://www.emerald.com/insight/content/doi/10.1108/JEDT-06-2023-0263/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestIdentifying factors that impact workers’ health and performance is extremely important for companies and, in particular, for companies in the construction sector. Despite the evidence, knowledge about the relationship between commuting, health and worker performance is still limited. More specifically on the relationship with work engagement, studies focus on work-related aspects, neglecting individual and behavioral factors. This study aims to verify the relationship between the commuting patterns of workers, their health and their work engagement in a civil construction company located in São José dos Campos, Brazil. A structured questionnaire was applied to 43 civil construction workers. The participants’ physical and mental health was evaluated using the 12-item short-form health survey. Employees’ work engagement was assessed through the UWES-17 scale. A descriptive statistical analysis was performed on the relationship between physical and mental health, engagement and commuting to work. The result corroborated the literature showing that the use of active transport positively influenced the mental health of construction workers and negatively affected those who use individual motorized transport. People working from home had the lowest values for total engagement, vigor and dedication. This study provides evidence and a prior understanding of this relationship, serving as a basis for decision-making processes in the area of transport that contribute to the health and better functioning of companies in the construction sector. This work also contributes to the state of the art on the relationship between commuting, health and worker engagement.Commuting and its relationship with health and engagement of civil construction workers
Júlia Barros dos Santos, Paulo Marcelo Macedo Nascimento, Josiane Palma Lima
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

Identifying factors that impact workers’ health and performance is extremely important for companies and, in particular, for companies in the construction sector. Despite the evidence, knowledge about the relationship between commuting, health and worker performance is still limited. More specifically on the relationship with work engagement, studies focus on work-related aspects, neglecting individual and behavioral factors. This study aims to verify the relationship between the commuting patterns of workers, their health and their work engagement in a civil construction company located in São José dos Campos, Brazil.

A structured questionnaire was applied to 43 civil construction workers. The participants’ physical and mental health was evaluated using the 12-item short-form health survey. Employees’ work engagement was assessed through the UWES-17 scale. A descriptive statistical analysis was performed on the relationship between physical and mental health, engagement and commuting to work.

The result corroborated the literature showing that the use of active transport positively influenced the mental health of construction workers and negatively affected those who use individual motorized transport. People working from home had the lowest values for total engagement, vigor and dedication.

This study provides evidence and a prior understanding of this relationship, serving as a basis for decision-making processes in the area of transport that contribute to the health and better functioning of companies in the construction sector. This work also contributes to the state of the art on the relationship between commuting, health and worker engagement.

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Commuting and its relationship with health and engagement of civil construction workers10.1108/JEDT-06-2023-0263Journal of Engineering, Design and Technology2024-02-09© 2024 Emerald Publishing LimitedJúlia Barros dos SantosPaulo Marcelo Macedo NascimentoJosiane Palma LimaJournal of Engineering, Design and Technologyahead-of-printahead-of-print2024-02-0910.1108/JEDT-06-2023-0263https://www.emerald.com/insight/content/doi/10.1108/JEDT-06-2023-0263/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2024 Emerald Publishing Limited
Implementation of work-life balance strategies among construction companies in Lagos, Nigeria: construction workers’ perspectiveshttps://www.emerald.com/insight/content/doi/10.1108/JEDT-06-2023-0264/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestThe construction industry in Nigeria has a complex environment, comprising several combinations of consulting professions, clients, contractual arrangement and investors, with longer working hours than other industries. Work–life balance (WLB) strategies are used to balance professional life and personal life. This study aims to assess the extent of implementation of WLB strategies among construction companies in Lagos, Nigeria. This study adopts a survey research technique. Snowball sampling technique was adopted to identify the targeted respondents for the administration of questionnaire. A total of 156 questionnaires were distributed and a response rate of 66% (103 questionnaires were completely filled and returned) was attained. Data elicited were analysed using descriptive and inferential statistics. Results from this study provides evidence that the level of implementation of WLB strategies among construction companies in Lagos state, Nigeria is on the average. The results also revealed organisational understanding, paternity/maternity leave and flexible working arrangement as the top most three WLB strategies implemented among the construction companies in Lagos, Nigeria. This study contributed to more effective WLB studies by identifying new information on the extent of usage of WLB practices in the Nigerian construction sector as well as offers a fresh perspective on the usage of WLB in a developing country. An understanding of these strategies is significant for companies’ stakeholders, such as management personnel, top construction professionals and policymakers, and for facilitating the adoption and implementation of WLB strategies among construction organisations.Implementation of work-life balance strategies among construction companies in Lagos, Nigeria: construction workers’ perspectives
Innocent Chigozie Osuizugbo, Olalekan Shamsideen Oshodi, Patricia Omega Kukoyi, Hosea Shemang Yohanna, Uche Emmanuel Edike
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

The construction industry in Nigeria has a complex environment, comprising several combinations of consulting professions, clients, contractual arrangement and investors, with longer working hours than other industries. Work–life balance (WLB) strategies are used to balance professional life and personal life. This study aims to assess the extent of implementation of WLB strategies among construction companies in Lagos, Nigeria.

This study adopts a survey research technique. Snowball sampling technique was adopted to identify the targeted respondents for the administration of questionnaire. A total of 156 questionnaires were distributed and a response rate of 66% (103 questionnaires were completely filled and returned) was attained. Data elicited were analysed using descriptive and inferential statistics.

Results from this study provides evidence that the level of implementation of WLB strategies among construction companies in Lagos state, Nigeria is on the average. The results also revealed organisational understanding, paternity/maternity leave and flexible working arrangement as the top most three WLB strategies implemented among the construction companies in Lagos, Nigeria.

This study contributed to more effective WLB studies by identifying new information on the extent of usage of WLB practices in the Nigerian construction sector as well as offers a fresh perspective on the usage of WLB in a developing country. An understanding of these strategies is significant for companies’ stakeholders, such as management personnel, top construction professionals and policymakers, and for facilitating the adoption and implementation of WLB strategies among construction organisations.

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Implementation of work-life balance strategies among construction companies in Lagos, Nigeria: construction workers’ perspectives10.1108/JEDT-06-2023-0264Journal of Engineering, Design and Technology2023-12-25© 2023 Emerald Publishing LimitedInnocent Chigozie OsuizugboOlalekan Shamsideen OshodiPatricia Omega KukoyiHosea Shemang YohannaUche Emmanuel EdikeJournal of Engineering, Design and Technologyahead-of-printahead-of-print2023-12-2510.1108/JEDT-06-2023-0264https://www.emerald.com/insight/content/doi/10.1108/JEDT-06-2023-0264/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2023 Emerald Publishing Limited
Development and validation of a framework for improving health and safety risk management at informal construction sites in Tanzaniahttps://www.emerald.com/insight/content/doi/10.1108/JEDT-06-2023-0268/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestAlthough there are several established frameworks for health and safety in construction, there are inadequate health and safety conditions at informal construction sites, and no framework has been designed to address this problem. The purpose of this paper is to develop a validated framework for health and safety risk management (HSRM) in informal construction sites with the aim of supporting Sustainable Development Goals 3, 8 and 11 of the 2030 Agenda, which are to ensure everyone enjoys a healthy life and to create inclusive, secure, robust and sustainable cities and human settlements, respectively. The study is based on HSRM questionnaire survey and interviews with construction workers working on informal construction sites in Tanzania. A total of 13 health and safety specialists in construction were specifically chosen to validate the proposed framework for HSRM in informal construction to determine its applicability, efficacy and adaptation. The validation results demonstrated that all of the suggested metrics within the framework for HSRM in informal construction scored higher than the test value, proving the framework’s feasibility This research adds to the body of knowledge on the issue in a never-before-seen setting. To the best of the authors’ knowledge, this study is the first empirical study in Tanzania to develop and validate a framework for HSRM in informal construction.Development and validation of a framework for improving health and safety risk management at informal construction sites in Tanzania
Benson Rugalema Mwemezi, Geraldine John Kikwasi, Sarah Phoya
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

Although there are several established frameworks for health and safety in construction, there are inadequate health and safety conditions at informal construction sites, and no framework has been designed to address this problem. The purpose of this paper is to develop a validated framework for health and safety risk management (HSRM) in informal construction sites with the aim of supporting Sustainable Development Goals 3, 8 and 11 of the 2030 Agenda, which are to ensure everyone enjoys a healthy life and to create inclusive, secure, robust and sustainable cities and human settlements, respectively.

The study is based on HSRM questionnaire survey and interviews with construction workers working on informal construction sites in Tanzania. A total of 13 health and safety specialists in construction were specifically chosen to validate the proposed framework for HSRM in informal construction to determine its applicability, efficacy and adaptation.

The validation results demonstrated that all of the suggested metrics within the framework for HSRM in informal construction scored higher than the test value, proving the framework’s feasibility

This research adds to the body of knowledge on the issue in a never-before-seen setting. To the best of the authors’ knowledge, this study is the first empirical study in Tanzania to develop and validate a framework for HSRM in informal construction.

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Development and validation of a framework for improving health and safety risk management at informal construction sites in Tanzania10.1108/JEDT-06-2023-0268Journal of Engineering, Design and Technology2023-11-14© 2023 Emerald Publishing LimitedBenson Rugalema MwemeziGeraldine John KikwasiSarah PhoyaJournal of Engineering, Design and Technologyahead-of-printahead-of-print2023-11-1410.1108/JEDT-06-2023-0268https://www.emerald.com/insight/content/doi/10.1108/JEDT-06-2023-0268/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2023 Emerald Publishing Limited
Supporting management of new product development via a novel conceptual model: an interview driven approachhttps://www.emerald.com/insight/content/doi/10.1108/JEDT-07-2021-0357/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestThis study aims to gain a deeper understanding of the industry practice to guide the formation of support tools with a rigorous theoretical backing. Cross-functional teams are an essential component in new product development (NPD) of complex products to promote comprehensive coverage of product design, marketing, sales, support as well as many other activities of business. Efficient use of teams can allow for greater technical competency coverage, increased creativity, reduced development times and greater consideration of ideas from a variety of stakeholders. While academics continually aspire to propose methods for improved team composition, there exists a gap between research directions and applications found within industry practice. Through interviewing product development managers working across a variety of industries, this paper investigates the common practices of team utilization in an organizational setting. Following these interviews, this paper proposes a conceptual two-dimensional management support model aggregating the primary drivers of team success and providing direction to systematically address features of team management and composition. Based on this work, product managers are recommended to continually address the positioning of members throughout the entire NPD process. In the early stages, individuals are to be placed to work on project components with explicit consideration toward the perceived complexity of tasks and individual competency. Throughout the development process, individuals’ positions vary based on new information while continued emphasis is placed on maintaining a shared understanding. Bridging the gap between theory and application within product development teams is a necessary step toward improved product develop. Industrial settings require practical solutions that can be applied economically and efficiently within their organization. Theoretical reflections postulated by academia support improved team design; however, to achieve true success, they must be applicable when considering product development.Supporting management of new product development via a novel conceptual model: an interview driven approach
Zachary Ball, Jonathan Cagan, Kenneth Kotovsky
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

This study aims to gain a deeper understanding of the industry practice to guide the formation of support tools with a rigorous theoretical backing. Cross-functional teams are an essential component in new product development (NPD) of complex products to promote comprehensive coverage of product design, marketing, sales, support as well as many other activities of business. Efficient use of teams can allow for greater technical competency coverage, increased creativity, reduced development times and greater consideration of ideas from a variety of stakeholders. While academics continually aspire to propose methods for improved team composition, there exists a gap between research directions and applications found within industry practice.

Through interviewing product development managers working across a variety of industries, this paper investigates the common practices of team utilization in an organizational setting. Following these interviews, this paper proposes a conceptual two-dimensional management support model aggregating the primary drivers of team success and providing direction to systematically address features of team management and composition.

Based on this work, product managers are recommended to continually address the positioning of members throughout the entire NPD process. In the early stages, individuals are to be placed to work on project components with explicit consideration toward the perceived complexity of tasks and individual competency. Throughout the development process, individuals’ positions vary based on new information while continued emphasis is placed on maintaining a shared understanding.

Bridging the gap between theory and application within product development teams is a necessary step toward improved product develop. Industrial settings require practical solutions that can be applied economically and efficiently within their organization. Theoretical reflections postulated by academia support improved team design; however, to achieve true success, they must be applicable when considering product development.

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Supporting management of new product development via a novel conceptual model: an interview driven approach10.1108/JEDT-07-2021-0357Journal of Engineering, Design and Technology2022-04-21© 2022 Emerald Publishing LimitedZachary BallJonathan CaganKenneth KotovskyJournal of Engineering, Design and Technologyahead-of-printahead-of-print2022-04-2110.1108/JEDT-07-2021-0357https://www.emerald.com/insight/content/doi/10.1108/JEDT-07-2021-0357/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2022 Emerald Publishing Limited
Adaptive deep learning for deep COVID-19 diagnosishttps://www.emerald.com/insight/content/doi/10.1108/JEDT-07-2021-0383/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestCOVID-19 has occurred in more than 150 countries and causes a huge impact on the health of many people. The main purpose of this work is, COVID-19 has occurred in more than 150 countries and causes a huge impact on the health of many people. The COVID-19 diagnosis is required to detect at the beginning stage and special attention should be given to them. The fastest way to detect the COVID-19 infected patients is detecting through radiology and radiography images. The few early studies describe the particular abnormalities of the infected patients in the chest radiograms. Even though some of the challenges occur in concluding the viral infection traces in X-ray images, the convolutional neural network (CNN) can determine the patterns of data between the normal and infected X-rays that increase the detection rate. Therefore, the researchers are focusing on developing a deep learning-based detection model. The main intention of this proposal is to develop the enhanced lung segmentation and classification of diagnosing the COVID-19. The main processes of the proposed model are image pre-processing, lung segmentation and deep classification. Initially, the image enhancement is performed by contrast enhancement and filtering approaches. Once the image is pre-processed, the optimal lung segmentation is done by the adaptive fuzzy-based region growing (AFRG) technique, in which the constant function for fusion is optimized by the modified deer hunting optimization algorithm (M-DHOA). Further, a well-performing deep learning algorithm termed adaptive CNN (A-CNN) is adopted for performing the classification, in which the hidden neurons are tuned by the proposed DHOA to enhance the detection accuracy. The simulation results illustrate that the proposed model has more possibilities to increase the COVID-19 testing methods on the publicly available data sets. From the experimental analysis, the accuracy of the proposed M-DHOA–CNN was 5.84%, 5.23%, 6.25% and 8.33% superior to recurrent neural network, neural networks, support vector machine and K-nearest neighbor, respectively. Thus, the segmentation and classification performance of the developed COVID-19 diagnosis by AFRG and A-CNN has outperformed the existing techniques. This paper adopts the latest optimization algorithm called M-DHOA to improve the performance of lung segmentation and classification in COVID-19 diagnosis using adaptive K-means with region growing fusion and A-CNN. To the best of the authors’ knowledge, this is the first work that uses M-DHOA for improved segmentation and classification steps for increasing the convergence rate of diagnosis.Adaptive deep learning for deep COVID-19 diagnosis
Elavaar Kuzhali S., Pushpa M.K.
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

COVID-19 has occurred in more than 150 countries and causes a huge impact on the health of many people. The main purpose of this work is, COVID-19 has occurred in more than 150 countries and causes a huge impact on the health of many people. The COVID-19 diagnosis is required to detect at the beginning stage and special attention should be given to them. The fastest way to detect the COVID-19 infected patients is detecting through radiology and radiography images. The few early studies describe the particular abnormalities of the infected patients in the chest radiograms. Even though some of the challenges occur in concluding the viral infection traces in X-ray images, the convolutional neural network (CNN) can determine the patterns of data between the normal and infected X-rays that increase the detection rate. Therefore, the researchers are focusing on developing a deep learning-based detection model.

The main intention of this proposal is to develop the enhanced lung segmentation and classification of diagnosing the COVID-19. The main processes of the proposed model are image pre-processing, lung segmentation and deep classification. Initially, the image enhancement is performed by contrast enhancement and filtering approaches. Once the image is pre-processed, the optimal lung segmentation is done by the adaptive fuzzy-based region growing (AFRG) technique, in which the constant function for fusion is optimized by the modified deer hunting optimization algorithm (M-DHOA). Further, a well-performing deep learning algorithm termed adaptive CNN (A-CNN) is adopted for performing the classification, in which the hidden neurons are tuned by the proposed DHOA to enhance the detection accuracy. The simulation results illustrate that the proposed model has more possibilities to increase the COVID-19 testing methods on the publicly available data sets.

From the experimental analysis, the accuracy of the proposed M-DHOA–CNN was 5.84%, 5.23%, 6.25% and 8.33% superior to recurrent neural network, neural networks, support vector machine and K-nearest neighbor, respectively. Thus, the segmentation and classification performance of the developed COVID-19 diagnosis by AFRG and A-CNN has outperformed the existing techniques.

This paper adopts the latest optimization algorithm called M-DHOA to improve the performance of lung segmentation and classification in COVID-19 diagnosis using adaptive K-means with region growing fusion and A-CNN. To the best of the authors’ knowledge, this is the first work that uses M-DHOA for improved segmentation and classification steps for increasing the convergence rate of diagnosis.

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Adaptive deep learning for deep COVID-19 diagnosis10.1108/JEDT-07-2021-0383Journal of Engineering, Design and Technology2022-03-24© 2022 Emerald Publishing LimitedElavaar Kuzhali S.Pushpa M.K.Journal of Engineering, Design and Technologyahead-of-printahead-of-print2022-03-2410.1108/JEDT-07-2021-0383https://www.emerald.com/insight/content/doi/10.1108/JEDT-07-2021-0383/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2022 Emerald Publishing Limited
System dynamic-based remanufacturing economic analysis model of used automobile engine under two recycling modeshttps://www.emerald.com/insight/content/doi/10.1108/JEDT-07-2022-0333/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestThe purpose of this study is to present a system dynamic (SD)-based remanufacturing economic analysis model of used automobile engine under two recycling modes. The authors will compare the remanufacturing cost, sales profit and sales revenue from time and space dimensions incurred in different recycling modes in the long run. The remanufacturing economic analysis model is based on SD methodology. The authors can simulate the relations of impact factors on automobile engine recycling and remanufacturing and further analyze and compare the cost, sales profit and sales revenue incurred in different recycling modes in the long term. Sinotruk Steyr engine remanufacturing in Shandong province is taken as the research case subject. The revenue, cost and profit under the two recycling modes from 2015 to 2035 are analyzed and compared. The results show that different recycling modes have significant varying influence on the economy of engine remanufacturing. This economic analysis model can provide a method reference to decide the recycling mode for auto components and other product remanufacturing. Moreover, this model can guide and support the sustainable development of remanufacturing industry.System dynamic-based remanufacturing economic analysis model of used automobile engine under two recycling modes
Junli Shi, Zhongchi Lu, Huanhuan Xu, Jipei Cui
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

The purpose of this study is to present a system dynamic (SD)-based remanufacturing economic analysis model of used automobile engine under two recycling modes. The authors will compare the remanufacturing cost, sales profit and sales revenue from time and space dimensions incurred in different recycling modes in the long run.

The remanufacturing economic analysis model is based on SD methodology. The authors can simulate the relations of impact factors on automobile engine recycling and remanufacturing and further analyze and compare the cost, sales profit and sales revenue incurred in different recycling modes in the long term.

Sinotruk Steyr engine remanufacturing in Shandong province is taken as the research case subject. The revenue, cost and profit under the two recycling modes from 2015 to 2035 are analyzed and compared. The results show that different recycling modes have significant varying influence on the economy of engine remanufacturing.

This economic analysis model can provide a method reference to decide the recycling mode for auto components and other product remanufacturing. Moreover, this model can guide and support the sustainable development of remanufacturing industry.

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System dynamic-based remanufacturing economic analysis model of used automobile engine under two recycling modes10.1108/JEDT-07-2022-0333Journal of Engineering, Design and Technology2022-12-22© 2022 Emerald Publishing LimitedJunli ShiZhongchi LuHuanhuan XuJipei CuiJournal of Engineering, Design and Technologyahead-of-printahead-of-print2022-12-2210.1108/JEDT-07-2022-0333https://www.emerald.com/insight/content/doi/10.1108/JEDT-07-2022-0333/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2022 Emerald Publishing Limited
Assessing the competencies of construction supervisors in providing work-based training components for construction labour – Sri Lankan perspectivehttps://www.emerald.com/insight/content/doi/10.1108/JEDT-07-2022-0343/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestStudies highlight that poor labour supervision and inadequate labour training facilities are the primary factors that result in labour skill shortages and productivity-related challenges among construction firms. This study aims to assess the construction supervisors’ abilities in providing work-based training elements and evaluating labour skills in construction. A construction supervisory training programme was newly designed with a set of labour training exercises using comprehensive approaches. A total of 64 construction supervisors were trained to deliver the labour training components for more than 250 labourers working on 23 construction projects in Sri Lanka. The supervisors’ competencies were assessed using a detailed marking guide developed through expert discussions and literature reviews. The results show the detailed cross-section of a wide range of competencies of the construction supervisors in providing labour training elements with the levels of standards/descriptions. The generalisability of the study applications and the reliability of the results were ensured using statistical tests and expert reviews. The findings further describe the impacts of the well-improved competencies of construction supervisors on labour working patterns and work outputs. Though the study findings were limited to the Sri Lankan construction sector, the study applications can have a considerable impact on the current/future practices of the construction sector in developing countries as well as other developing industries. The study outcomes may contribute to a rapid increase in the number of construction supervisors becoming certified assessors of National Vocational Qualifications up to certain levels. This paper describes the further extensive implications and future scopes of the study elaborately. The study adds new characteristics and values to construction supervision practices that can be remarkable in achieving higher levels of performance and productivity in labour operations. Importantly, the study contributes to adorning the job role of construction supervisors with the title of “labour training expert”.Assessing the competencies of construction supervisors in providing work-based training components for construction labour – Sri Lankan perspective
Kesavan Manoharan, Pujitha Dissanayake, Chintha Pathirana, M.M.D.R. Deegahawature, Renuka Silva
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

Studies highlight that poor labour supervision and inadequate labour training facilities are the primary factors that result in labour skill shortages and productivity-related challenges among construction firms. This study aims to assess the construction supervisors’ abilities in providing work-based training elements and evaluating labour skills in construction.

A construction supervisory training programme was newly designed with a set of labour training exercises using comprehensive approaches. A total of 64 construction supervisors were trained to deliver the labour training components for more than 250 labourers working on 23 construction projects in Sri Lanka. The supervisors’ competencies were assessed using a detailed marking guide developed through expert discussions and literature reviews.

The results show the detailed cross-section of a wide range of competencies of the construction supervisors in providing labour training elements with the levels of standards/descriptions. The generalisability of the study applications and the reliability of the results were ensured using statistical tests and expert reviews. The findings further describe the impacts of the well-improved competencies of construction supervisors on labour working patterns and work outputs.

Though the study findings were limited to the Sri Lankan construction sector, the study applications can have a considerable impact on the current/future practices of the construction sector in developing countries as well as other developing industries.

The study outcomes may contribute to a rapid increase in the number of construction supervisors becoming certified assessors of National Vocational Qualifications up to certain levels. This paper describes the further extensive implications and future scopes of the study elaborately.

The study adds new characteristics and values to construction supervision practices that can be remarkable in achieving higher levels of performance and productivity in labour operations. Importantly, the study contributes to adorning the job role of construction supervisors with the title of “labour training expert”.

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Assessing the competencies of construction supervisors in providing work-based training components for construction labour – Sri Lankan perspective10.1108/JEDT-07-2022-0343Journal of Engineering, Design and Technology2022-12-08© 2022 Emerald Publishing LimitedKesavan ManoharanPujitha DissanayakeChintha PathiranaM.M.D.R. DeegahawatureRenuka SilvaJournal of Engineering, Design and Technologyahead-of-printahead-of-print2022-12-0810.1108/JEDT-07-2022-0343https://www.emerald.com/insight/content/doi/10.1108/JEDT-07-2022-0343/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2022 Emerald Publishing Limited
Determining the stationary barriers to the implementation of radio frequency identification (RFID) technology in an emerging construction industryhttps://www.emerald.com/insight/content/doi/10.1108/JEDT-07-2022-0348/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestTo realize full benefits without sacrificing the practicality of such projects, the decision-making process for residential building construction needs to include sustainability principles at every level. Therefore, this paper aims to investigate the applicability of radio frequency identification (RFID) and identify the barriers that impede its successful adoption in construction projects to achieve sustainability. This paper opted for a quantitative approach by using a structured questionnaire survey. A total of 107 responses were collected from Nigerian construction practitioners involved in private and public construction businesses. The results showed the high cost of RFID implementation, with a mean score of 4.42 as the top-ranked barrier, followed by lack of security, maintenance, power availability and inadequate training. This study further deployed Ginni’s mean difference measure of dispersion and revealed that the stationary barrier to adopting RFID technology is the lack of demand. The findings of this research can assist decision-makers in improving the sustainability of all building projects by implementing RFID. The findings of this study will serve as the basis for comprehension and critically evaluate the numerous barriers preventing the widespread adoption of RFID technology.Determining the stationary barriers to the implementation of radio frequency identification (RFID) technology in an emerging construction industry
Ayodeji Emmanuel Oke, Ahmed Farouk Kineber, Oluwaseun Akindele, Damilola Ekundayo
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

To realize full benefits without sacrificing the practicality of such projects, the decision-making process for residential building construction needs to include sustainability principles at every level. Therefore, this paper aims to investigate the applicability of radio frequency identification (RFID) and identify the barriers that impede its successful adoption in construction projects to achieve sustainability.

This paper opted for a quantitative approach by using a structured questionnaire survey. A total of 107 responses were collected from Nigerian construction practitioners involved in private and public construction businesses.

The results showed the high cost of RFID implementation, with a mean score of 4.42 as the top-ranked barrier, followed by lack of security, maintenance, power availability and inadequate training. This study further deployed Ginni’s mean difference measure of dispersion and revealed that the stationary barrier to adopting RFID technology is the lack of demand.

The findings of this research can assist decision-makers in improving the sustainability of all building projects by implementing RFID.

The findings of this study will serve as the basis for comprehension and critically evaluate the numerous barriers preventing the widespread adoption of RFID technology.

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Determining the stationary barriers to the implementation of radio frequency identification (RFID) technology in an emerging construction industry10.1108/JEDT-07-2022-0348Journal of Engineering, Design and Technology2023-03-07© 2023 Emerald Publishing LimitedAyodeji Emmanuel OkeAhmed Farouk KineberOluwaseun AkindeleDamilola EkundayoJournal of Engineering, Design and Technologyahead-of-printahead-of-print2023-03-0710.1108/JEDT-07-2022-0348https://www.emerald.com/insight/content/doi/10.1108/JEDT-07-2022-0348/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2023 Emerald Publishing Limited
Understanding the key factors of operating environment for small and medium contractors in the developing economies: the case of Ethiopiahttps://www.emerald.com/insight/content/doi/10.1108/JEDT-07-2022-0354/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestSmall and medium contractors (SMCs) play a significant role in socioeconomic development. Their strong links with other sectors of the economy have a multiplier effect on any country’s growth. However, the construction business, especially for SMCs, is not an easy business as several roadblocks affect their sustenance. This study aims to examine the factors affecting the sustainable competency of SMCs emerging from the business environment in which the Ethiopian construction industry (CI) operates. A literature review was conducted to identify 39 factors arising from five core sources (i.e. government policies, regulatory frameworks, industry networks, competitive bidding culture and construction technology and innovation). A questionnaire survey was conducted to gather industry stakeholders’ perceptions of the identified factors, and the results were analyzed using descriptive statistics. Findings indicate 37 significant factors affecting sustainable competency arising from five sources, and the top factors from their respective sources were unfavorable financial policy; unfavorable economic regulatory framework; lack of trust between parties in the industry; inability of SMCs to compete with bigger construction companies; and poor linkages between CI and research and development institutions. Furthermore, factor analysis identified 12 components, and the top ones were competition and uncertainties in the supply chain; unsuitable bidding environment; and ineffective industry networks. The findings will contribute to the body of knowledge on the factors affecting the sustainable competency of SMCs in the Ethiopian CI. They also indicate priority areas of competitiveness improvement and have implications for decision-makers.Understanding the key factors of operating environment for small and medium contractors in the developing economies: the case of Ethiopia
Abraham Aboneh, Gangadhar Mahesh
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

Small and medium contractors (SMCs) play a significant role in socioeconomic development. Their strong links with other sectors of the economy have a multiplier effect on any country’s growth. However, the construction business, especially for SMCs, is not an easy business as several roadblocks affect their sustenance. This study aims to examine the factors affecting the sustainable competency of SMCs emerging from the business environment in which the Ethiopian construction industry (CI) operates.

A literature review was conducted to identify 39 factors arising from five core sources (i.e. government policies, regulatory frameworks, industry networks, competitive bidding culture and construction technology and innovation). A questionnaire survey was conducted to gather industry stakeholders’ perceptions of the identified factors, and the results were analyzed using descriptive statistics.

Findings indicate 37 significant factors affecting sustainable competency arising from five sources, and the top factors from their respective sources were unfavorable financial policy; unfavorable economic regulatory framework; lack of trust between parties in the industry; inability of SMCs to compete with bigger construction companies; and poor linkages between CI and research and development institutions. Furthermore, factor analysis identified 12 components, and the top ones were competition and uncertainties in the supply chain; unsuitable bidding environment; and ineffective industry networks.

The findings will contribute to the body of knowledge on the factors affecting the sustainable competency of SMCs in the Ethiopian CI. They also indicate priority areas of competitiveness improvement and have implications for decision-makers.

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Understanding the key factors of operating environment for small and medium contractors in the developing economies: the case of Ethiopia10.1108/JEDT-07-2022-0354Journal of Engineering, Design and Technology2023-05-12© 2023 Emerald Publishing LimitedAbraham AbonehGangadhar MaheshJournal of Engineering, Design and Technologyahead-of-printahead-of-print2023-05-1210.1108/JEDT-07-2022-0354https://www.emerald.com/insight/content/doi/10.1108/JEDT-07-2022-0354/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2023 Emerald Publishing Limited
Profound barriers to value management adoption on construction projects in a developing nationhttps://www.emerald.com/insight/content/doi/10.1108/JEDT-07-2022-0357/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestThe adoption of value management (VM) has been on the rise in the construction industry, especially in the past decade. Identifying the main barriers to VM application for ameliorating poor project outcomes in the construction industry is a critical step to overcoming its implementation. Therefore, this study aims to examine the barriers to the adoption of VM in the Nigerian construction industry (NCI) and identify the critical ones for action by construction stakeholders. This study used two rounds of Delphi surveys with 15 VM experts to identify the challenges to VM adoption. The Delphi team’s data from the two surveys were analysed using descriptive statistics. The mean-mode approach was used to identify ten major barriers to VM adoption based on the consensus reached during the second round of the Delphi poll. Following that, an interrater agreement analysis and a significant level analysis were performed. Of the 17 identified barriers hindering VM adoption on construction projects in the NCI, 10 were found to be profound after statistical analyses of the data. The significant barriers include communication gap between the client and other consultants; delay in design preparation because of VM services; the pretext that VM is being practiced in the construction industry; and the wrong perception of VM by construction professionals, among others. The findings of the analysis suggested that the lack of VM adoption in the NCI was because of inadequate knowledge of VM techniques among construction professionals. Therefore, it is advised that VM training be provided for concerned stakeholders to address the lack of VM expertise among Nigerian construction professionals. This study investigated the barriers to VM adoption on construction projects in the NCI with the opinions of a few construction professionals who can be regarded as VM experts. As against obtaining large survey responses from construction professionals who may not be knowledgeable in the VM process, the limited VM experts’ responses provide a valid basis for drawing inferences and making recommendations to address the paucity of VM applications in the NCI. Through a Delphi survey, the critical barriers to the adoption of VM were identified, along with recommendations to help construction stakeholders overcome the challenges and enjoy the benefits of VM.Profound barriers to value management adoption on construction projects in a developing nation
Lekan Damilola Ojo, Deji Rufus Ogunsemi, Ahmed Elyamany, Ayodeji Emmanuel Oke
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

The adoption of value management (VM) has been on the rise in the construction industry, especially in the past decade. Identifying the main barriers to VM application for ameliorating poor project outcomes in the construction industry is a critical step to overcoming its implementation. Therefore, this study aims to examine the barriers to the adoption of VM in the Nigerian construction industry (NCI) and identify the critical ones for action by construction stakeholders.

This study used two rounds of Delphi surveys with 15 VM experts to identify the challenges to VM adoption. The Delphi team’s data from the two surveys were analysed using descriptive statistics. The mean-mode approach was used to identify ten major barriers to VM adoption based on the consensus reached during the second round of the Delphi poll. Following that, an interrater agreement analysis and a significant level analysis were performed.

Of the 17 identified barriers hindering VM adoption on construction projects in the NCI, 10 were found to be profound after statistical analyses of the data. The significant barriers include communication gap between the client and other consultants; delay in design preparation because of VM services; the pretext that VM is being practiced in the construction industry; and the wrong perception of VM by construction professionals, among others. The findings of the analysis suggested that the lack of VM adoption in the NCI was because of inadequate knowledge of VM techniques among construction professionals. Therefore, it is advised that VM training be provided for concerned stakeholders to address the lack of VM expertise among Nigerian construction professionals.

This study investigated the barriers to VM adoption on construction projects in the NCI with the opinions of a few construction professionals who can be regarded as VM experts. As against obtaining large survey responses from construction professionals who may not be knowledgeable in the VM process, the limited VM experts’ responses provide a valid basis for drawing inferences and making recommendations to address the paucity of VM applications in the NCI.

Through a Delphi survey, the critical barriers to the adoption of VM were identified, along with recommendations to help construction stakeholders overcome the challenges and enjoy the benefits of VM.

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Profound barriers to value management adoption on construction projects in a developing nation10.1108/JEDT-07-2022-0357Journal of Engineering, Design and Technology2023-08-10© 2023 Emerald Publishing LimitedLekan Damilola OjoDeji Rufus OgunsemiAhmed ElyamanyAyodeji Emmanuel OkeJournal of Engineering, Design and Technologyahead-of-printahead-of-print2023-08-1010.1108/JEDT-07-2022-0357https://www.emerald.com/insight/content/doi/10.1108/JEDT-07-2022-0357/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2023 Emerald Publishing Limited
Ensemble of ensembles for fine particulate matter pollution prediction using big data analytics and IoT emission sensorshttps://www.emerald.com/insight/content/doi/10.1108/JEDT-07-2022-0379/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestThe study aims to develop a multilayer high-effective ensemble of ensembles predictive model (stacking ensemble) using several hyperparameter optimized ensemble machine learning (ML) methods (bagging and boosting ensembles) trained with high-volume data points retrieved from Internet of Things (IoT) emission sensors, time-corresponding meteorology and traffic data. For a start, the study experimented big data hypothesis theory by developing sample ensemble predictive models on different data sample sizes and compared their results. Second, it developed a standalone model and several bagging and boosting ensemble models and compared their results. Finally, it used the best performing bagging and boosting predictive models as input estimators to develop a novel multilayer high-effective stacking ensemble predictive model. Results proved data size to be one of the main determinants to ensemble ML predictive power. Second, it proved that, as compared to using a single algorithm, the cumulative result from ensemble ML algorithms is usually always better in terms of predicted accuracy. Finally, it proved stacking ensemble to be a better model for predicting PM2.5 concentration level than bagging and boosting ensemble models. A limitation of this study is the trade-off between performance of this novel model and the computational time required to train it. Whether this gap can be closed remains an open research question. As a result, future research should attempt to close this gap. Also, future studies can integrate this novel model to a personal air quality messaging system to inform public of pollution levels and improve public access to air quality forecast. The outcome of this study will aid the public to proactively identify highly polluted areas thus potentially reducing pollution-associated/ triggered COVID-19 (and other lung diseases) deaths/ complications/ transmission by encouraging avoidance behavior and support informed decision to lock down by government bodies when integrated into an air pollution monitoring system This study fills a gap in literature by providing a justification for selecting appropriate ensemble ML algorithms for PM2.5 concentration level predictive modeling. Second, it contributes to the big data hypothesis theory, which suggests that data size is one of the most important factors of ML predictive capability. Third, it supports the premise that when using ensemble ML algorithms, the cumulative output is usually always better in terms of predicted accuracy than using a single algorithm. Finally developing a novel multilayer high-performant hyperparameter optimized ensemble of ensembles predictive model that can accurately predict PM2.5 concentration levels with improved model interpretability and enhanced generalizability, as well as the provision of a novel databank of historic pollution data from IoT emission sensors that can be purchased for research, consultancy and policymaking.Ensemble of ensembles for fine particulate matter pollution prediction using big data analytics and IoT emission sensors
Christian Nnaemeka Egwim, Hafiz Alaka, Youlu Pan, Habeeb Balogun, Saheed Ajayi, Abdul Hye, Oluwapelumi Oluwaseun Egunjobi
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

The study aims to develop a multilayer high-effective ensemble of ensembles predictive model (stacking ensemble) using several hyperparameter optimized ensemble machine learning (ML) methods (bagging and boosting ensembles) trained with high-volume data points retrieved from Internet of Things (IoT) emission sensors, time-corresponding meteorology and traffic data.

For a start, the study experimented big data hypothesis theory by developing sample ensemble predictive models on different data sample sizes and compared their results. Second, it developed a standalone model and several bagging and boosting ensemble models and compared their results. Finally, it used the best performing bagging and boosting predictive models as input estimators to develop a novel multilayer high-effective stacking ensemble predictive model.

Results proved data size to be one of the main determinants to ensemble ML predictive power. Second, it proved that, as compared to using a single algorithm, the cumulative result from ensemble ML algorithms is usually always better in terms of predicted accuracy. Finally, it proved stacking ensemble to be a better model for predicting PM2.5 concentration level than bagging and boosting ensemble models.

A limitation of this study is the trade-off between performance of this novel model and the computational time required to train it. Whether this gap can be closed remains an open research question. As a result, future research should attempt to close this gap. Also, future studies can integrate this novel model to a personal air quality messaging system to inform public of pollution levels and improve public access to air quality forecast.

The outcome of this study will aid the public to proactively identify highly polluted areas thus potentially reducing pollution-associated/ triggered COVID-19 (and other lung diseases) deaths/ complications/ transmission by encouraging avoidance behavior and support informed decision to lock down by government bodies when integrated into an air pollution monitoring system

This study fills a gap in literature by providing a justification for selecting appropriate ensemble ML algorithms for PM2.5 concentration level predictive modeling. Second, it contributes to the big data hypothesis theory, which suggests that data size is one of the most important factors of ML predictive capability. Third, it supports the premise that when using ensemble ML algorithms, the cumulative output is usually always better in terms of predicted accuracy than using a single algorithm. Finally developing a novel multilayer high-performant hyperparameter optimized ensemble of ensembles predictive model that can accurately predict PM2.5 concentration levels with improved model interpretability and enhanced generalizability, as well as the provision of a novel databank of historic pollution data from IoT emission sensors that can be purchased for research, consultancy and policymaking.

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Ensemble of ensembles for fine particulate matter pollution prediction using big data analytics and IoT emission sensors10.1108/JEDT-07-2022-0379Journal of Engineering, Design and Technology2023-11-07© 2023 Emerald Publishing LimitedChristian Nnaemeka EgwimHafiz AlakaYoulu PanHabeeb BalogunSaheed AjayiAbdul HyeOluwapelumi Oluwaseun EgunjobiJournal of Engineering, Design and Technologyahead-of-printahead-of-print2023-11-0710.1108/JEDT-07-2022-0379https://www.emerald.com/insight/content/doi/10.1108/JEDT-07-2022-0379/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2023 Emerald Publishing Limited
Development and validation of a real-time testbed for renewable energy integration studies: South African grid code case studyhttps://www.emerald.com/insight/content/doi/10.1108/JEDT-07-2022-0380/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestDespite South Africa’s ailing electrical grid, substantial renewable energy (RE) integration is planned for the country. As grid-integrated RE affects all grids differently, this study aims to develop an adaptable grid code-guided renewable power plant (RPP) control real-time simulation testbed, tailored to South African grid code requirements to study grid-integrated RE’s behaviour concerning South Africa’s unique conditions. The testbed is designed using MATLAB’s Simulink and live script environments, to create an adaptable model where grid, RPP and RPP guiding grid codes are tailorable. This model is integrated with OPAL-RT’s RT-LAB and brought to real-time simulation using OPAL-RT’s OP4510 simulator. Voltage, frequency and short-circuit event case studies are performed through which the testbed’s abilities and performance are assessed. Case study results show the following. The testbed accurately represents grid code voltage and frequency requirements. RPP point of connection (POC) conditions are consistently recognized and tracked, according to which the testbed then operates simulated RPPs, validating its design. Short-circuit event simulations show the simulated wind farm supports POC conditions relative to short-circuit intensity by curtailing active power in favour of reactive power, in line with local grid code requirements. To the best of the authors’ knowledge, this is the first design of an adaptable grid code-guided RPP control testbed, tailored to South African grid code requirements in line with which RPP behavioural and grid integration studies can be performed.Development and validation of a real-time testbed for renewable energy integration studies: South African grid code case study
Gideon Daniel Joubert, Atanda Kamoru Raji
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

Despite South Africa’s ailing electrical grid, substantial renewable energy (RE) integration is planned for the country. As grid-integrated RE affects all grids differently, this study aims to develop an adaptable grid code-guided renewable power plant (RPP) control real-time simulation testbed, tailored to South African grid code requirements to study grid-integrated RE’s behaviour concerning South Africa’s unique conditions.

The testbed is designed using MATLAB’s Simulink and live script environments, to create an adaptable model where grid, RPP and RPP guiding grid codes are tailorable. This model is integrated with OPAL-RT’s RT-LAB and brought to real-time simulation using OPAL-RT’s OP4510 simulator. Voltage, frequency and short-circuit event case studies are performed through which the testbed’s abilities and performance are assessed.

Case study results show the following. The testbed accurately represents grid code voltage and frequency requirements. RPP point of connection (POC) conditions are consistently recognized and tracked, according to which the testbed then operates simulated RPPs, validating its design. Short-circuit event simulations show the simulated wind farm supports POC conditions relative to short-circuit intensity by curtailing active power in favour of reactive power, in line with local grid code requirements.

To the best of the authors’ knowledge, this is the first design of an adaptable grid code-guided RPP control testbed, tailored to South African grid code requirements in line with which RPP behavioural and grid integration studies can be performed.

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Development and validation of a real-time testbed for renewable energy integration studies: South African grid code case study10.1108/JEDT-07-2022-0380Journal of Engineering, Design and Technology2023-04-14© 2023 Gideon Daniel Joubert and Atanda Kamoru Raji.Gideon Daniel JoubertAtanda Kamoru RajiJournal of Engineering, Design and Technologyahead-of-printahead-of-print2023-04-1410.1108/JEDT-07-2022-0380https://www.emerald.com/insight/content/doi/10.1108/JEDT-07-2022-0380/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2023 Gideon Daniel Joubert and Atanda Kamoru Raji.http://creativecommons.org/licences/by/4.0/legalcode
Assessing project complexity factors for railway megaprojects: a Delphi-BWM approachhttps://www.emerald.com/insight/content/doi/10.1108/JEDT-07-2022-0398/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestProject complexity (PC) governs project success, but the project management literature primarily focuses on performance measures and rarely examines the complexity factors, especially for megaprojects. This paper aims to determine the most significant complexity factors for the railway megaprojects in India. A mixed approach using the Delphi and best–worst method (BWM) helped to identify, validate and determine the most critical factors that require intervention to diminish variance from project performance. The BWM resulted in stakeholder management, followed by organizational and technological complexity as significant complexity factors, and the varied interests of the stakeholder as the most important among the 40 subfactors. The finding indicates the necessity for strategic, tactical and operational-level interventions to effectively manage the complexity affecting project efficiency because of the varied stakeholders. This paper will guide the project and general managers to prioritize their resources to handle complexity for effective project performance measured in terms of time, cost and quality and help them make strategic decisions. The research findings of this study are expected to help researchers and practitioners in better planning and smoother execution of projects. In addition, this study would help the researchers formulate policies and strategies for better handling of the projects. This study adds significant value to the body of knowledge related to PC in megaprojects in developing countries. The result of the investigation underlined that nine complexity factors and seven unique subfactors, namely, the sustainable environment, timely availability of information, communication in both directions, interdepartmental dependency and coordination, design, statutory norms, site challenges, socioeconomic conditions, the tendency of staff to accept new technology and the frequent changes in the requirements of stakeholders are significant in railway megaprojects. The BWM is applied to rank the complexity factors and subfactors in the case area.Assessing project complexity factors for railway megaprojects: a Delphi-BWM approach
Kavita Bhangale, Kanchan Joshi, Ruchita Gupta, Bhaskar Gardas
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

Project complexity (PC) governs project success, but the project management literature primarily focuses on performance measures and rarely examines the complexity factors, especially for megaprojects. This paper aims to determine the most significant complexity factors for the railway megaprojects in India.

A mixed approach using the Delphi and best–worst method (BWM) helped to identify, validate and determine the most critical factors that require intervention to diminish variance from project performance.

The BWM resulted in stakeholder management, followed by organizational and technological complexity as significant complexity factors, and the varied interests of the stakeholder as the most important among the 40 subfactors.

The finding indicates the necessity for strategic, tactical and operational-level interventions to effectively manage the complexity affecting project efficiency because of the varied stakeholders. This paper will guide the project and general managers to prioritize their resources to handle complexity for effective project performance measured in terms of time, cost and quality and help them make strategic decisions. The research findings of this study are expected to help researchers and practitioners in better planning and smoother execution of projects. In addition, this study would help the researchers formulate policies and strategies for better handling of the projects.

This study adds significant value to the body of knowledge related to PC in megaprojects in developing countries. The result of the investigation underlined that nine complexity factors and seven unique subfactors, namely, the sustainable environment, timely availability of information, communication in both directions, interdepartmental dependency and coordination, design, statutory norms, site challenges, socioeconomic conditions, the tendency of staff to accept new technology and the frequent changes in the requirements of stakeholders are significant in railway megaprojects. The BWM is applied to rank the complexity factors and subfactors in the case area.

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Assessing project complexity factors for railway megaprojects: a Delphi-BWM approach10.1108/JEDT-07-2022-0398Journal of Engineering, Design and Technology2024-01-08© 2023 Emerald Publishing LimitedKavita BhangaleKanchan JoshiRuchita GuptaBhaskar GardasJournal of Engineering, Design and Technologyahead-of-printahead-of-print2024-01-0810.1108/JEDT-07-2022-0398https://www.emerald.com/insight/content/doi/10.1108/JEDT-07-2022-0398/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2023 Emerald Publishing Limited
Influence of emotional intelligence attributes on human resource management practices implementation in the Nigerian construction industryhttps://www.emerald.com/insight/content/doi/10.1108/JEDT-07-2023-0291/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestThe workforce upon which the construction industry relies, known as human resources (HRs), faces challenges such as poor management, inadequate implementation of human resource management practices (HRMPs) and psychosocial issues. This study aims to identify and assess the impact of emotional intelligence (EI) attributes on the implementation of HRMPs in the Nigerian construction industry (NCI) to enhance business performance as well as the performance and productivity of HRs. A mixed-methods research design combining qualitative and quantitative approaches was used to gather expert perspectives on specific EI attributes. Data analysis involved the use of interquartile deviation, median, standard deviation, mean, Cronbach’s alpha and exploratory factor analysis (EFA). The study identified 12 EI attributes that influenced HRMPs implementation, with 1 attribute having a very high impact (9.00–10.00) and 11 scoring high impact (7.00–8.99). Further analysis using EFA resulted in the identification of two major attribute clusters: “team relationship” and “self-management”. These findings have significant implications for construction professionals, HRs and policymakers, as they address the challenges faced by construction stakeholders in terms of physical and mental well-being, which can affect their emotions while carrying out construction activities. Construction organizations should consider incorporating support systems into their policies to influence HRMPs implementation in the workplace. The study provides valuable insights for developing nations such as Nigeria regarding the essential EI attributes for successful HRMPs implementation.Influence of emotional intelligence attributes on human resource management practices implementation in the Nigerian construction industry
Ifedolapo Helen Babalola, Clinton Ohis Aigbavboa, John Aliu, Ayodeji Emmanuel Oke
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

The workforce upon which the construction industry relies, known as human resources (HRs), faces challenges such as poor management, inadequate implementation of human resource management practices (HRMPs) and psychosocial issues. This study aims to identify and assess the impact of emotional intelligence (EI) attributes on the implementation of HRMPs in the Nigerian construction industry (NCI) to enhance business performance as well as the performance and productivity of HRs.

A mixed-methods research design combining qualitative and quantitative approaches was used to gather expert perspectives on specific EI attributes. Data analysis involved the use of interquartile deviation, median, standard deviation, mean, Cronbach’s alpha and exploratory factor analysis (EFA).

The study identified 12 EI attributes that influenced HRMPs implementation, with 1 attribute having a very high impact (9.00–10.00) and 11 scoring high impact (7.00–8.99). Further analysis using EFA resulted in the identification of two major attribute clusters: “team relationship” and “self-management”.

These findings have significant implications for construction professionals, HRs and policymakers, as they address the challenges faced by construction stakeholders in terms of physical and mental well-being, which can affect their emotions while carrying out construction activities. Construction organizations should consider incorporating support systems into their policies to influence HRMPs implementation in the workplace.

The study provides valuable insights for developing nations such as Nigeria regarding the essential EI attributes for successful HRMPs implementation.

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Influence of emotional intelligence attributes on human resource management practices implementation in the Nigerian construction industry10.1108/JEDT-07-2023-0291Journal of Engineering, Design and Technology2023-12-06© 2023 Emerald Publishing LimitedIfedolapo Helen BabalolaClinton Ohis AigbavboaJohn AliuAyodeji Emmanuel OkeJournal of Engineering, Design and Technologyahead-of-printahead-of-print2023-12-0610.1108/JEDT-07-2023-0291https://www.emerald.com/insight/content/doi/10.1108/JEDT-07-2023-0291/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2023 Emerald Publishing Limited
Impact of project risk allocation on PPP housing project delivery in Nigeria: partial least square structural equation modeling approachhttps://www.emerald.com/insight/content/doi/10.1108/JEDT-07-2023-0304/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestThis paper aims to help understand how adopting risk allocation criteria impacts the delivery of public–private partnership (PPP) mass housing in Nigeria with the view of promoting the adoption of PPP housing scheme in Nigeria. The research design adopts the census sampling approach by using well-structured questionnaires distributed to stakeholders involved in PPP-procured mass housing projects, i.e. consultants, in-house professionals, contractors and the organized private sector, registered with PPP departments in the Federal Capital Territory Development Authority, Abuja, Nigeria. Sixty-three risk factors, nine risk allocation criteria and nine project delivery indices were submitted for the respondents to rank on a Likert scale of 7. Two hypotheses were formulated to test whether the risk allocation criteria impacted PPP mass housing delivery or otherwise. The study adopts partial least square-structural equation modeling to model the effect of risk on risk allocation criteria on project delivery indices and risk severity. The finding shows that project risk allocation criteria have less effect on project delivery indices than on risk severity. The study concludes that risk allocation principles do not directly affect the delivery of PPP-procured mass housing projects. This is evident by the path coefficient of 0.724 values, which is not statistically significant at a 5% alpha protection value. The study concludes that allocating critical risk factors influences the performance of PPP-procured mass housing projects, as the path coefficient of 0.360 is also not significantly far from 0 and at a 5% alpha protection value. The study is one of the recent studies conducted in PPP-procured mass housing projects in Nigeria owing to the novelty of procurement option in the sector. It highlights the risk factors that can jeopardize the PPP-procured mass housing project objectives. The study is of immense value to PPP actors in the sector by providing the necessary information required to formulate risk response methods to minimize the impact of the risk factors in PPP mass housing projects.Impact of project risk allocation on PPP housing project delivery in Nigeria: partial least square structural equation modeling approach
Bamidele Temitope Arijeloye
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

This paper aims to help understand how adopting risk allocation criteria impacts the delivery of public–private partnership (PPP) mass housing in Nigeria with the view of promoting the adoption of PPP housing scheme in Nigeria.

The research design adopts the census sampling approach by using well-structured questionnaires distributed to stakeholders involved in PPP-procured mass housing projects, i.e. consultants, in-house professionals, contractors and the organized private sector, registered with PPP departments in the Federal Capital Territory Development Authority, Abuja, Nigeria. Sixty-three risk factors, nine risk allocation criteria and nine project delivery indices were submitted for the respondents to rank on a Likert scale of 7. Two hypotheses were formulated to test whether the risk allocation criteria impacted PPP mass housing delivery or otherwise. The study adopts partial least square-structural equation modeling to model the effect of risk on risk allocation criteria on project delivery indices and risk severity.

The finding shows that project risk allocation criteria have less effect on project delivery indices than on risk severity. The study concludes that risk allocation principles do not directly affect the delivery of PPP-procured mass housing projects. This is evident by the path coefficient of 0.724 values, which is not statistically significant at a 5% alpha protection value. The study concludes that allocating critical risk factors influences the performance of PPP-procured mass housing projects, as the path coefficient of 0.360 is also not significantly far from 0 and at a 5% alpha protection value.

The study is one of the recent studies conducted in PPP-procured mass housing projects in Nigeria owing to the novelty of procurement option in the sector. It highlights the risk factors that can jeopardize the PPP-procured mass housing project objectives. The study is of immense value to PPP actors in the sector by providing the necessary information required to formulate risk response methods to minimize the impact of the risk factors in PPP mass housing projects.

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Impact of project risk allocation on PPP housing project delivery in Nigeria: partial least square structural equation modeling approach10.1108/JEDT-07-2023-0304Journal of Engineering, Design and Technology2023-11-10© 2023 Emerald Publishing LimitedBamidele Temitope ArijeloyeJournal of Engineering, Design and Technologyahead-of-printahead-of-print2023-11-1010.1108/JEDT-07-2023-0304https://www.emerald.com/insight/content/doi/10.1108/JEDT-07-2023-0304/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2023 Emerald Publishing Limited
Re-evaluating falls through skylights in the USA: has anything changed?https://www.emerald.com/insight/content/doi/10.1108/JEDT-07-2023-0308/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestWith proper design and work planning, falls through fragile skylights are preventable. Skylights pose a hazard to workers when their work tasks for operations, maintenance and repair require them to be on roofs. The National Institute of Occupational Health and Safety produced guidelines and special alerts to address the dangers that are present around skylights, and the Occupational Safety and Health Administration regulations have prescriptive requirements for work performed around skylights, and yet incidents still occur. The purpose of this study is to investigate and raise awareness for the causality of the incidents involving skylights in the USA. The authors investigated and analyzed 204 incidents involving skylights recorded by the Bureau of Labor Statistics to characterize their nature and to determine any correlation with the roof environment or the nature of the work performed. Using Google Earth and Google Maps roof geometry, proximity of skylights to roof edge and rooftop mechanical equipment was determined. The majority of falls through skylights occur during roof maintenance and repair activities. Falls through skylights are underreported. Because of a general lack of good design to reduce or eliminate the risk of falling through skylights, facility managers carry the burden to properly assess work and access on roofs where fragile skylights are present. The phenomenon of falling through skylights was made aware on a national level in the USA in 1989; however, little has been done from a design and planning perspective to reduce these incidents. This paper presents a unique perspective on the role of facility managers in understanding the hazards associated with roof maintenance near skylights.Re-evaluating falls through skylights in the USA: has anything changed?
Nicholas Tymvios, Jake Smithwick, Michael Behm
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

With proper design and work planning, falls through fragile skylights are preventable. Skylights pose a hazard to workers when their work tasks for operations, maintenance and repair require them to be on roofs. The National Institute of Occupational Health and Safety produced guidelines and special alerts to address the dangers that are present around skylights, and the Occupational Safety and Health Administration regulations have prescriptive requirements for work performed around skylights, and yet incidents still occur. The purpose of this study is to investigate and raise awareness for the causality of the incidents involving skylights in the USA.

The authors investigated and analyzed 204 incidents involving skylights recorded by the Bureau of Labor Statistics to characterize their nature and to determine any correlation with the roof environment or the nature of the work performed. Using Google Earth and Google Maps roof geometry, proximity of skylights to roof edge and rooftop mechanical equipment was determined.

The majority of falls through skylights occur during roof maintenance and repair activities. Falls through skylights are underreported. Because of a general lack of good design to reduce or eliminate the risk of falling through skylights, facility managers carry the burden to properly assess work and access on roofs where fragile skylights are present.

The phenomenon of falling through skylights was made aware on a national level in the USA in 1989; however, little has been done from a design and planning perspective to reduce these incidents. This paper presents a unique perspective on the role of facility managers in understanding the hazards associated with roof maintenance near skylights.

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Re-evaluating falls through skylights in the USA: has anything changed?10.1108/JEDT-07-2023-0308Journal of Engineering, Design and Technology2023-12-18© 2023 Emerald Publishing LimitedNicholas TymviosJake SmithwickMichael BehmJournal of Engineering, Design and Technologyahead-of-printahead-of-print2023-12-1810.1108/JEDT-07-2023-0308https://www.emerald.com/insight/content/doi/10.1108/JEDT-07-2023-0308/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2023 Emerald Publishing Limited
BIM-based multi-objective optimization framework for volumetric analysis of building projectshttps://www.emerald.com/insight/content/doi/10.1108/JEDT-07-2023-0309/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestThe purpose of this paper is to develop a building information modelling (BIM)-based multi-objective optimization (MOO) framework for volumetric analysis of buildings during early design stages. The objective is to optimize volumetric spaces (3D) instead of 2D spaces to enhance space utilization, thermal comfort, constructability and rental value of buildings The integration of two fundamental concepts – BIM and MOO, forms the basis of proposed framework. In the early design phases of a project, BIM is used to generate precise building volume data. The non-sorting genetic algorithm-II, a MOO algorithm, is then used to optimize extracted volume data from 3D BIM models, considering four objectives: space utilization, thermal comfort, rental value and construction cost. The framework is implemented in context of a school of architecture building project. The findings of case study demonstrate significant improvements resulting from MOO of building volumes. Space utilization increased by 30%, while thermal comfort improved by 20%, and construction costs were reduced by 10%. Furthermore, rental value of the case study building increased by 33%. The proposed framework offers practical implications by enabling project teams to generate optimal building floor layouts during early design stages, thereby avoiding late costly changes during construction phase of project. The integration of BIM and MOO in this study provides a unique approach to optimize building volumes considering multiple factors during early design stages of a projectBIM-based multi-objective optimization framework for volumetric analysis of building projects
S. P. Sreenivas Padala, Prabhanjan M. Skanda
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

The purpose of this paper is to develop a building information modelling (BIM)-based multi-objective optimization (MOO) framework for volumetric analysis of buildings during early design stages. The objective is to optimize volumetric spaces (3D) instead of 2D spaces to enhance space utilization, thermal comfort, constructability and rental value of buildings

The integration of two fundamental concepts – BIM and MOO, forms the basis of proposed framework. In the early design phases of a project, BIM is used to generate precise building volume data. The non-sorting genetic algorithm-II, a MOO algorithm, is then used to optimize extracted volume data from 3D BIM models, considering four objectives: space utilization, thermal comfort, rental value and construction cost. The framework is implemented in context of a school of architecture building project.

The findings of case study demonstrate significant improvements resulting from MOO of building volumes. Space utilization increased by 30%, while thermal comfort improved by 20%, and construction costs were reduced by 10%. Furthermore, rental value of the case study building increased by 33%.

The proposed framework offers practical implications by enabling project teams to generate optimal building floor layouts during early design stages, thereby avoiding late costly changes during construction phase of project.

The integration of BIM and MOO in this study provides a unique approach to optimize building volumes considering multiple factors during early design stages of a project

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BIM-based multi-objective optimization framework for volumetric analysis of building projects10.1108/JEDT-07-2023-0309Journal of Engineering, Design and Technology2024-02-06© 2024 Emerald Publishing LimitedS. P. Sreenivas PadalaPrabhanjan M. SkandaJournal of Engineering, Design and Technologyahead-of-printahead-of-print2024-02-0610.1108/JEDT-07-2023-0309https://www.emerald.com/insight/content/doi/10.1108/JEDT-07-2023-0309/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2024 Emerald Publishing Limited
The role of psychological contract in enhancing safety climate and safety behavior in the construction industryhttps://www.emerald.com/insight/content/doi/10.1108/JEDT-07-2023-0315/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestThis study aims to explore the “psychological contract of safety” (PCS), a key factor in the safety climate (SC), which relies on the behavioral safety actions of workers at construction sites. While numerous factors have been identified in various sectors across different countries, there is a consensus among researchers that there is a dearth of common assessment factors specifically for the Indian construction industry (ICI). Therefore, this study undertakes a systematic review of existing literature to identify the factors that determine PCS in construction and to ascertain the relative importance index (RII) of these variables and their interrelationships using structural equation modelling (SEM). A structured survey was conducted among 420 professionals in the ICI to collect data. This data was then analyzed using descriptive and inferential statistical methods to derive results. The findings of the study indicate that PCS factors have a significant impact on the construction industry (CI). The inferential analysis ranks “Safety System” as the top factor with the highest RII value. The chi-square results highlight two key SC factors that enhance and regulate an organization’s safety performance. The SEM results reveal that SC factors contribute to the improvement of PCS and influence worker safety behavior. The outcomes of this study will be beneficial for stakeholders aiming to improve safety at construction sites and enhance safety performance by fulfilling the mutual safety obligations of employers and employees and by improving safety norms, procedures and policy-making. This paper also provides a theoretical framework for scholars to reassess the results in various contexts.The role of psychological contract in enhancing safety climate and safety behavior in the construction industry
Soundarya Priya M.G., Anandh K.S., Sathyanarayanan Rajendran, Krishna Nirmalya Sen
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

This study aims to explore the “psychological contract of safety” (PCS), a key factor in the safety climate (SC), which relies on the behavioral safety actions of workers at construction sites. While numerous factors have been identified in various sectors across different countries, there is a consensus among researchers that there is a dearth of common assessment factors specifically for the Indian construction industry (ICI). Therefore, this study undertakes a systematic review of existing literature to identify the factors that determine PCS in construction and to ascertain the relative importance index (RII) of these variables and their interrelationships using structural equation modelling (SEM).

A structured survey was conducted among 420 professionals in the ICI to collect data. This data was then analyzed using descriptive and inferential statistical methods to derive results.

The findings of the study indicate that PCS factors have a significant impact on the construction industry (CI). The inferential analysis ranks “Safety System” as the top factor with the highest RII value. The chi-square results highlight two key SC factors that enhance and regulate an organization’s safety performance. The SEM results reveal that SC factors contribute to the improvement of PCS and influence worker safety behavior.

The outcomes of this study will be beneficial for stakeholders aiming to improve safety at construction sites and enhance safety performance by fulfilling the mutual safety obligations of employers and employees and by improving safety norms, procedures and policy-making. This paper also provides a theoretical framework for scholars to reassess the results in various contexts.

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The role of psychological contract in enhancing safety climate and safety behavior in the construction industry10.1108/JEDT-07-2023-0315Journal of Engineering, Design and Technology2024-01-16© 2024 Emerald Publishing LimitedSoundarya Priya M.G.Anandh K.S.Sathyanarayanan RajendranKrishna Nirmalya SenJournal of Engineering, Design and Technologyahead-of-printahead-of-print2024-01-1610.1108/JEDT-07-2023-0315https://www.emerald.com/insight/content/doi/10.1108/JEDT-07-2023-0315/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2024 Emerald Publishing Limited
Methodology for retrospectively developing a BIM model from point cloud scans using ongoing building project as case studyhttps://www.emerald.com/insight/content/doi/10.1108/JEDT-07-2023-0325/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestThe purpose of this study is to explore the suggestions that construction processes could be considerably improved by integrating building information modelling (BIM) with 3D laser scanning technologies. This case study integrated 3D laser point cloud scans with BIM to explore the effects of BIM adoption on ongoing construction project, whilst evaluating the utility of 3D laser scanning technology for producing structural 3D models by converting point cloud data (PCD) into BIM. The primary data acquisition adopted the use of Trimble X7 laser scanning process, which is a set of data points in the scanned space that represent the scanned structure. The implementation of BIM with the 3D PCD to explore the precision and effectiveness of the construction processes as well as the as-built condition of a structure was precisely captured using the 3D laser scanning technology to recreate accurate and exact 3D models capable of being used to find and fix problems during construction. The findings indicate that the integration of BIM and 3D laser scanning technology has the tendency to mitigate issues such as building rework, improved project completion times, reduced project cost, enhanced interdisciplinary communication, cooperation and collaboration amongst the project duty holders, which ultimately enhances the overall efficiency of the construction project. The acquisition of data using 3D laser scanner is usually conducted from the ground. Therefore, certain aspects of the building could potentially disturb data acquisition; for example, the gable and sections of eaves (fascia and soffit) could be left in a blind spot. Data acquisition using 3D laser scanner technology takes time, and the processing of the vast amount of data acquired is laborious, and if not carefully analysed, could result in errors in generated models. Furthermore, because this was an ongoing construction project, material stockpiling and planned construction works obstructed and delayed the seamless capture of scanned data points. These findings highlight the significance of integrating BIM and 3D laser scanning technology in the construction process and emphasise the value of advanced data collection methods for effectively managing construction projects and streamlined workflows.Methodology for retrospectively developing a BIM model from point cloud scans using ongoing building project as case study
Kenneth Lawani, Farhad Sadeghineko, Michael Tong, Mehmethan Bayraktar
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

The purpose of this study is to explore the suggestions that construction processes could be considerably improved by integrating building information modelling (BIM) with 3D laser scanning technologies. This case study integrated 3D laser point cloud scans with BIM to explore the effects of BIM adoption on ongoing construction project, whilst evaluating the utility of 3D laser scanning technology for producing structural 3D models by converting point cloud data (PCD) into BIM.

The primary data acquisition adopted the use of Trimble X7 laser scanning process, which is a set of data points in the scanned space that represent the scanned structure. The implementation of BIM with the 3D PCD to explore the precision and effectiveness of the construction processes as well as the as-built condition of a structure was precisely captured using the 3D laser scanning technology to recreate accurate and exact 3D models capable of being used to find and fix problems during construction.

The findings indicate that the integration of BIM and 3D laser scanning technology has the tendency to mitigate issues such as building rework, improved project completion times, reduced project cost, enhanced interdisciplinary communication, cooperation and collaboration amongst the project duty holders, which ultimately enhances the overall efficiency of the construction project.

The acquisition of data using 3D laser scanner is usually conducted from the ground. Therefore, certain aspects of the building could potentially disturb data acquisition; for example, the gable and sections of eaves (fascia and soffit) could be left in a blind spot. Data acquisition using 3D laser scanner technology takes time, and the processing of the vast amount of data acquired is laborious, and if not carefully analysed, could result in errors in generated models. Furthermore, because this was an ongoing construction project, material stockpiling and planned construction works obstructed and delayed the seamless capture of scanned data points.

These findings highlight the significance of integrating BIM and 3D laser scanning technology in the construction process and emphasise the value of advanced data collection methods for effectively managing construction projects and streamlined workflows.

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Methodology for retrospectively developing a BIM model from point cloud scans using ongoing building project as case study10.1108/JEDT-07-2023-0325Journal of Engineering, Design and Technology2024-01-19© 2024 Emerald Publishing LimitedKenneth LawaniFarhad SadeghinekoMichael TongMehmethan BayraktarJournal of Engineering, Design and Technologyahead-of-printahead-of-print2024-01-1910.1108/JEDT-07-2023-0325https://www.emerald.com/insight/content/doi/10.1108/JEDT-07-2023-0325/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2024 Emerald Publishing Limited
Exploring mental health challenges and implications for construction safetyhttps://www.emerald.com/insight/content/doi/10.1108/JEDT-07-2023-0327/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestOver 2.7 million workers are employed in the UK construction industry and with the fragmented nature of the construction sector; cases of poor mental health of workers are on the increase. This upsurge in the number of workers experiencing poor mental health could directly impact construction safety with significant financial adverse consequences on employers and the UK economy. Studies have identified lapses within the construction sector emphasising the lack of transparency regarding reporting of mental health and well-being of construction workers due to the inadequate engagement from employers and the lack of genuine leadership commitment to tackle mental health. This study adopted a non-probability purposive sampling strategy, using a self-selected sample. A self-administered questionnaire benchmarked against the mental health core and enhanced standards tools by the “Stevenson/Farmer review of mental health and employers” served as the basis for the methodology. A total of 106 industry managers from highways, construction, maritime, utilities, home building, rail and haulage/fleet were involved in this study. The findings indicate that the industry is making good strides towards addressing mental health issues; poor mental health have significant financial burdens on businesses and the economy; some contractors have mental health initiatives and programmes in place; there is inconsistency of support available to employees; some contractors now integrate leadership training; the level of engagement vary based on the strategy and action plan adopted by organisations; different mechanisms are adopted for monitoring mental health issues, and there are cross-industry initiatives. A limitation of this study is the number of participants which is not representative of the entire UK construction workforce. Therefore, the findings from this study as much as it presents some understanding of employee mental health and well-being cannot be overtly generalised across multiple industries, different geographic regions or contexts. Employers should have a clear representation of the mental health of their employees to help them understand what affects worker’s mental well-being and how they can support them. Disregarding the multifaceted causes of mental ill-health due to the perceived financial implications could be more devastating for the industry.Exploring mental health challenges and implications for construction safety
Kenneth Lawani, Billy Hare, Michael Tong, Iain Cameron
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

Over 2.7 million workers are employed in the UK construction industry and with the fragmented nature of the construction sector; cases of poor mental health of workers are on the increase. This upsurge in the number of workers experiencing poor mental health could directly impact construction safety with significant financial adverse consequences on employers and the UK economy. Studies have identified lapses within the construction sector emphasising the lack of transparency regarding reporting of mental health and well-being of construction workers due to the inadequate engagement from employers and the lack of genuine leadership commitment to tackle mental health.

This study adopted a non-probability purposive sampling strategy, using a self-selected sample. A self-administered questionnaire benchmarked against the mental health core and enhanced standards tools by the “Stevenson/Farmer review of mental health and employers” served as the basis for the methodology. A total of 106 industry managers from highways, construction, maritime, utilities, home building, rail and haulage/fleet were involved in this study.

The findings indicate that the industry is making good strides towards addressing mental health issues; poor mental health have significant financial burdens on businesses and the economy; some contractors have mental health initiatives and programmes in place; there is inconsistency of support available to employees; some contractors now integrate leadership training; the level of engagement vary based on the strategy and action plan adopted by organisations; different mechanisms are adopted for monitoring mental health issues, and there are cross-industry initiatives.

A limitation of this study is the number of participants which is not representative of the entire UK construction workforce. Therefore, the findings from this study as much as it presents some understanding of employee mental health and well-being cannot be overtly generalised across multiple industries, different geographic regions or contexts.

Employers should have a clear representation of the mental health of their employees to help them understand what affects worker’s mental well-being and how they can support them. Disregarding the multifaceted causes of mental ill-health due to the perceived financial implications could be more devastating for the industry.

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Exploring mental health challenges and implications for construction safety10.1108/JEDT-07-2023-0327Journal of Engineering, Design and Technology2023-11-21© 2023 Emerald Publishing LimitedKenneth LawaniBilly HareMichael TongIain CameronJournal of Engineering, Design and Technologyahead-of-printahead-of-print2023-11-2110.1108/JEDT-07-2023-0327https://www.emerald.com/insight/content/doi/10.1108/JEDT-07-2023-0327/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2023 Emerald Publishing Limited
Development of workplace well-being indexes at construction siteshttps://www.emerald.com/insight/content/doi/10.1108/JEDT-07-2023-0328/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestThis study aims to develop workplace well-being indexes for construction sites of different project types (infrastructure, high-rise and low-rise). Accordingly, the study objectives are to identify the critical factors that affect workplace well-being at construction sites, compare the critical factors between different project types, categorize the critical factors into subgroups and compute indexes for the critical factors and subgroups. Data from a systematic literature review and semi-structured interviews with construction industry professionals were used to extract 19 potential factors that affect workplace well-being. Then, a structured questionnaire survey was distributed, and 169 valid responses were collected. Finally, the data were analyzed using normalized mean analysis, agreement analysis, factor analysis and fuzzy synthetic evaluation. The study findings revealed that there are 11, 11, 8 and 12 critical factors across overall infrastructure, high-rise and low-rise construction projects. Out of those, six critical factors are overlapping across project types, including “general safety and health monitoring,” “salary package,” “timeline of salary payment,” “working hours,” “communication between workers” and “planning of the project.” Accordingly, the critical factors can be categorized into two subgroups within each project type. Finally, the development of indexes shows that infrastructure construction projects have the greatest index compared to other project types. This study contributes to filling the current knowledge gap by developing workplace well-being indexes at construction sites across different project types. The indexes would assist decision-makers in understanding the current state of workplace well-being. This increases the commitment and recognition of well-being across different construction project types.Development of workplace well-being indexes at construction sites
Mazen M. Omer, Tirivavi Moyo, Ahmad Rizal Alias, Rahimi A. Rahman
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

This study aims to develop workplace well-being indexes for construction sites of different project types (infrastructure, high-rise and low-rise). Accordingly, the study objectives are to identify the critical factors that affect workplace well-being at construction sites, compare the critical factors between different project types, categorize the critical factors into subgroups and compute indexes for the critical factors and subgroups.

Data from a systematic literature review and semi-structured interviews with construction industry professionals were used to extract 19 potential factors that affect workplace well-being. Then, a structured questionnaire survey was distributed, and 169 valid responses were collected. Finally, the data were analyzed using normalized mean analysis, agreement analysis, factor analysis and fuzzy synthetic evaluation.

The study findings revealed that there are 11, 11, 8 and 12 critical factors across overall infrastructure, high-rise and low-rise construction projects. Out of those, six critical factors are overlapping across project types, including “general safety and health monitoring,” “salary package,” “timeline of salary payment,” “working hours,” “communication between workers” and “planning of the project.” Accordingly, the critical factors can be categorized into two subgroups within each project type. Finally, the development of indexes shows that infrastructure construction projects have the greatest index compared to other project types.

This study contributes to filling the current knowledge gap by developing workplace well-being indexes at construction sites across different project types. The indexes would assist decision-makers in understanding the current state of workplace well-being. This increases the commitment and recognition of well-being across different construction project types.

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Development of workplace well-being indexes at construction sites10.1108/JEDT-07-2023-0328Journal of Engineering, Design and Technology2024-01-24© 2024 Emerald Publishing LimitedMazen M. OmerTirivavi MoyoAhmad Rizal AliasRahimi A. RahmanJournal of Engineering, Design and Technologyahead-of-printahead-of-print2024-01-2410.1108/JEDT-07-2023-0328https://www.emerald.com/insight/content/doi/10.1108/JEDT-07-2023-0328/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2024 Emerald Publishing Limited
Impact of empowering leadership on safety behavior and safety climate: mediating and moderating role of safety monitoringhttps://www.emerald.com/insight/content/doi/10.1108/JEDT-08-2021-0407/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestThis paper aims to critically evaluate the impact of empowering leadership on safety behavior and safety climate during safety monitoring at a nuclear power plant (NPP) in the United Arab Emirates (UAE). Data were collected using questionnaires filled out by 500 participants from the UAE nuclear sector. The relationships among the variables were analyzed using structural equation modeling. The results indicated that empowering leadership has a positive impact on safety behavior, and a positive safety climate leads to increased levels of safety behavior (compliance and participation). The results also showed that safety climate partially mediates the relationship between empowering leadership and safety behavior. This study contributes to the existing knowledge regarding empowering leadership, safety monitoring, behavior and climate. Because limited information is available on this topic, this study extends the research on the relationship between empowering leadership and safety research at an NPP. Specifically, it outlines that safety monitoring partially mediates the relationship between empowering leadership and safety behavior. This research enables NPPs worldwide to incorporate empowering leadership to enhance safety monitoring and ensure better safety behavior and climate.Impact of empowering leadership on safety behavior and safety climate: mediating and moderating role of safety monitoring
Hasan AlShemeili, Ross Davidson, Khalizani Khalid
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

This paper aims to critically evaluate the impact of empowering leadership on safety behavior and safety climate during safety monitoring at a nuclear power plant (NPP) in the United Arab Emirates (UAE).

Data were collected using questionnaires filled out by 500 participants from the UAE nuclear sector. The relationships among the variables were analyzed using structural equation modeling.

The results indicated that empowering leadership has a positive impact on safety behavior, and a positive safety climate leads to increased levels of safety behavior (compliance and participation). The results also showed that safety climate partially mediates the relationship between empowering leadership and safety behavior.

This study contributes to the existing knowledge regarding empowering leadership, safety monitoring, behavior and climate. Because limited information is available on this topic, this study extends the research on the relationship between empowering leadership and safety research at an NPP. Specifically, it outlines that safety monitoring partially mediates the relationship between empowering leadership and safety behavior. This research enables NPPs worldwide to incorporate empowering leadership to enhance safety monitoring and ensure better safety behavior and climate.

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Impact of empowering leadership on safety behavior and safety climate: mediating and moderating role of safety monitoring10.1108/JEDT-08-2021-0407Journal of Engineering, Design and Technology2022-07-26© 2022 Emerald Publishing LimitedHasan AlShemeiliRoss DavidsonKhalizani KhalidJournal of Engineering, Design and Technologyahead-of-printahead-of-print2022-07-2610.1108/JEDT-08-2021-0407https://www.emerald.com/insight/content/doi/10.1108/JEDT-08-2021-0407/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2022 Emerald Publishing Limited
Flexural behavior of slabs made of lightweight foamed concrete with basalt powderhttps://www.emerald.com/insight/content/doi/10.1108/JEDT-08-2022-0413/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestCement can be replaced to reduce the energy consumption and the environmental impact of cement. Also, foamed concrete can be used structurally in residential buildings to reduce weight and improve thermal insulation. To achieve these two goals, this paper aims to investigate the effect of basalt powder as a partial replacement of either cement or sand. This paper investigates the effect of basalt powder as a partial replacement of either cement or sand on the mechanical properties of foamed concrete used to cast slabs. First, mechanical properties of foamed concrete are tested with and without replacement of basalt. Then, six slabs of different thicknesses and mixes are investigated. The thicknesses considered are 150- and 200-mm slabs. The three mixes used to construct these slabs are foamed concrete with no basalt powder, foamed concrete with replacement of 20% of cement by basalt powder and foamed concrete with replacement of 20% of sand by basalt powder. The flexural behavior of these slabs is investigated. All the slabs failed in the commonly intended flexural mode. The results show that the basalt powder acted as a strong filler material in the foamed concrete mix based on mechanical properties and flexural behavior. The proposed foamed concrete slabs can be used structurally in residential buildings. A natural waste material that can be used to promote energy efficiency and reduce emission is basalt. In this paper, basalt powder is suggested to be used due to its chemical composition that is similar to cement. Also, basalt powder is low in cost as it is waste, while basalt aggregate is prepared, and it is only used as filler in paved roads. Accordingly, basalt is partially used instead of cement to reduce the emission of carbon dioxide that results from the cement manufacturing. Also, it is used as a partial alternative to sand which can be considered as a new stronger source as filling material used in the production of concrete.Flexural behavior of slabs made of lightweight foamed concrete with basalt powder
Hanadi Al-Zubaidi, Rabab Allouzi
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

Cement can be replaced to reduce the energy consumption and the environmental impact of cement. Also, foamed concrete can be used structurally in residential buildings to reduce weight and improve thermal insulation. To achieve these two goals, this paper aims to investigate the effect of basalt powder as a partial replacement of either cement or sand.

This paper investigates the effect of basalt powder as a partial replacement of either cement or sand on the mechanical properties of foamed concrete used to cast slabs. First, mechanical properties of foamed concrete are tested with and without replacement of basalt. Then, six slabs of different thicknesses and mixes are investigated. The thicknesses considered are 150- and 200-mm slabs. The three mixes used to construct these slabs are foamed concrete with no basalt powder, foamed concrete with replacement of 20% of cement by basalt powder and foamed concrete with replacement of 20% of sand by basalt powder. The flexural behavior of these slabs is investigated.

All the slabs failed in the commonly intended flexural mode. The results show that the basalt powder acted as a strong filler material in the foamed concrete mix based on mechanical properties and flexural behavior. The proposed foamed concrete slabs can be used structurally in residential buildings.

A natural waste material that can be used to promote energy efficiency and reduce emission is basalt. In this paper, basalt powder is suggested to be used due to its chemical composition that is similar to cement. Also, basalt powder is low in cost as it is waste, while basalt aggregate is prepared, and it is only used as filler in paved roads. Accordingly, basalt is partially used instead of cement to reduce the emission of carbon dioxide that results from the cement manufacturing. Also, it is used as a partial alternative to sand which can be considered as a new stronger source as filling material used in the production of concrete.

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Flexural behavior of slabs made of lightweight foamed concrete with basalt powder10.1108/JEDT-08-2022-0413Journal of Engineering, Design and Technology2023-08-11© 2023 Emerald Publishing LimitedHanadi Al-ZubaidiRabab AllouziJournal of Engineering, Design and Technologyahead-of-printahead-of-print2023-08-1110.1108/JEDT-08-2022-0413https://www.emerald.com/insight/content/doi/10.1108/JEDT-08-2022-0413/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2023 Emerald Publishing Limited
Assessment of corporate social responsibility performance for Vietnamese construction organizationshttps://www.emerald.com/insight/content/doi/10.1108/JEDT-08-2022-0417/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestCorporate social responsibility (CSR) performance is critical to address construction activities’ environmental and social impacts. This study aims to evaluate the level of CSR implementation across various categories within the context of the Vietnamese construction industry. The literature review and semi-structured interviews were conducted to determine Vietnamese construction organizations’ most commonly implemented CSR activities. A total of 252 valid responses were then obtained through a questionnaire survey. In addition, the fuzzy synthetic evaluation (FSE) method was used to evaluate the extent to which CSR categories have been implemented in construction companies. The findings revealed 31 commonly implemented CSR activities of the Vietnamese construction firms, which were grouped into four categories. Of the four categories, the FSE analysis showed that stakeholder CSR was the most critical category, followed by ethical CSR, philanthropic CSR and environmental CSR. This research provides valuable CSR activities to construction companies that intend to develop sustainably. Moreover, the proposed prioritization methodology offers practitioners a reliable and easy-to-use evaluation tool that clearly understands CSR performance within their organizations.Assessment of corporate social responsibility performance for Vietnamese construction organizations
Minh Van Nguyen
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

Corporate social responsibility (CSR) performance is critical to address construction activities’ environmental and social impacts. This study aims to evaluate the level of CSR implementation across various categories within the context of the Vietnamese construction industry.

The literature review and semi-structured interviews were conducted to determine Vietnamese construction organizations’ most commonly implemented CSR activities. A total of 252 valid responses were then obtained through a questionnaire survey. In addition, the fuzzy synthetic evaluation (FSE) method was used to evaluate the extent to which CSR categories have been implemented in construction companies.

The findings revealed 31 commonly implemented CSR activities of the Vietnamese construction firms, which were grouped into four categories. Of the four categories, the FSE analysis showed that stakeholder CSR was the most critical category, followed by ethical CSR, philanthropic CSR and environmental CSR.

This research provides valuable CSR activities to construction companies that intend to develop sustainably. Moreover, the proposed prioritization methodology offers practitioners a reliable and easy-to-use evaluation tool that clearly understands CSR performance within their organizations.

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Assessment of corporate social responsibility performance for Vietnamese construction organizations10.1108/JEDT-08-2022-0417Journal of Engineering, Design and Technology2023-07-17© 2023 Emerald Publishing LimitedMinh Van NguyenJournal of Engineering, Design and Technologyahead-of-printahead-of-print2023-07-1710.1108/JEDT-08-2022-0417https://www.emerald.com/insight/content/doi/10.1108/JEDT-08-2022-0417/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2023 Emerald Publishing Limited
Circular building adaptability in adaptive reuse: multiple case studies in the Netherlandshttps://www.emerald.com/insight/content/doi/10.1108/JEDT-08-2022-0428/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestThe application of circular building adaptability (CBA) in adaptive reuse becomes an effective action for resource efficiency, long-lasting usability of the built environment and the sped-up transition to a circular economy (CE). This paper aims to explore to which extent CBA-related strategies are applied in adaptive reuse projects, considering enablers and obstacles. A stepwise theory-practice-oriented approach was followed. Multiple-case studies of five circular adaptive reuse projects in The Netherlands were investigated, using archival research and in-depth interviews. A cross-case analysis of the findings was deductively conducted, to find and replicate common patterns. The study revealed that configuration flexibility, product dismantlability and material reversibility were applied across the case studies, whereas functional convertibility and building maintainability were less applied. Low cost of material reuse, collaboration among team members and organisational motivation were frequently observed enabling factors. Lack of information, technical complexities, lack of circularity expertise and infeasibility of innovative circular solutions were frequently observed obstacles to applying CBA. This paper provides practitioners with a set of CBA strategies that have been applied in the real world, facilitating the application of CBA in future adaptive reuse projects. Moreover, this set of strategies provides policymakers with tools for developing supportive regulations or amending existing regulations for facilitating CE through adaptive reuse. This study provides empirical evidence on the application of CBA in different real-life contexts. It provides scholars and practitioners with a starting point for further developing guiding or decision-making tools for CBA in adaptive reuse.Circular building adaptability in adaptive reuse: multiple case studies in the Netherlands
Mohammad B. Hamida, Hilde Remøy, Vincent Gruis, Tuuli Jylhä
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

The application of circular building adaptability (CBA) in adaptive reuse becomes an effective action for resource efficiency, long-lasting usability of the built environment and the sped-up transition to a circular economy (CE). This paper aims to explore to which extent CBA-related strategies are applied in adaptive reuse projects, considering enablers and obstacles.

A stepwise theory-practice-oriented approach was followed. Multiple-case studies of five circular adaptive reuse projects in The Netherlands were investigated, using archival research and in-depth interviews. A cross-case analysis of the findings was deductively conducted, to find and replicate common patterns.

The study revealed that configuration flexibility, product dismantlability and material reversibility were applied across the case studies, whereas functional convertibility and building maintainability were less applied. Low cost of material reuse, collaboration among team members and organisational motivation were frequently observed enabling factors. Lack of information, technical complexities, lack of circularity expertise and infeasibility of innovative circular solutions were frequently observed obstacles to applying CBA.

This paper provides practitioners with a set of CBA strategies that have been applied in the real world, facilitating the application of CBA in future adaptive reuse projects. Moreover, this set of strategies provides policymakers with tools for developing supportive regulations or amending existing regulations for facilitating CE through adaptive reuse.

This study provides empirical evidence on the application of CBA in different real-life contexts. It provides scholars and practitioners with a starting point for further developing guiding or decision-making tools for CBA in adaptive reuse.

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Circular building adaptability in adaptive reuse: multiple case studies in the Netherlands10.1108/JEDT-08-2022-0428Journal of Engineering, Design and Technology2023-07-28© 2023 Mohammad B. Hamida, Hilde Remøy, Vincent Gruis and Tuuli Jylhä.Mohammad B. HamidaHilde RemøyVincent GruisTuuli JylhäJournal of Engineering, Design and Technologyahead-of-printahead-of-print2023-07-2810.1108/JEDT-08-2022-0428https://www.emerald.com/insight/content/doi/10.1108/JEDT-08-2022-0428/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2023 Mohammad B. Hamida, Hilde Remøy, Vincent Gruis and Tuuli Jylhä.http://creativecommons.org/licences/by/4.0/legalcode
The potential of the empathic ability for the performance of civil engineering projectshttps://www.emerald.com/insight/content/doi/10.1108/JEDT-08-2022-0431/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestThe increasing complexity of civil engineering projects necessitates focusing on new competencies of project participants. Based on the research on team performance and design processes that are more closely linked to the relevance of the project context, it is hypothesised that empathic abilities could play an important role in the performance of civil engineering projects. Therefore, this study aims to investigate whether performance can be improved by focusing on empathic abilities during the integrated design phase. Semi-structured in-depth interviews with experts were conducted to explore the relevance of empathic abilities and their interaction with performance in a real-life infrastructure project. The project team’s empathy level was measured by means of a survey using Davis’ Interpersonal Reactivity Index method. Finally, differences between expected and measured levels of empathy were analysed. The results provide insights into how empathic abilities interact with performance. The measurement indicates that, on average, professionals in the civil engineering industry score relatively low on empathy. In addition, differences were identified between the expected distribution and the measured empathy levels of the team, implying a potential for improvement, in particular by increasing the empathic abilities of the project management and increasing gender diversity. To the best of the authors’ knowledge, this study is the first to investigate a relationship between empathy and the performance of civil engineering projects. The results provide initial insights into the empathic ability of civil engineering project teams and the potential of empathy to improve performance. Furthermore, from an empathy perspective, this study advocates increasing the gender diversity of project teams to improve performance.The potential of the empathic ability for the performance of civil engineering projects
Guus Keusters, Frédérique Batelaan, Froukje SleeswijkVisser, Erik-Jan Houwing, Hans Bakker
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

The increasing complexity of civil engineering projects necessitates focusing on new competencies of project participants. Based on the research on team performance and design processes that are more closely linked to the relevance of the project context, it is hypothesised that empathic abilities could play an important role in the performance of civil engineering projects. Therefore, this study aims to investigate whether performance can be improved by focusing on empathic abilities during the integrated design phase.

Semi-structured in-depth interviews with experts were conducted to explore the relevance of empathic abilities and their interaction with performance in a real-life infrastructure project. The project team’s empathy level was measured by means of a survey using Davis’ Interpersonal Reactivity Index method. Finally, differences between expected and measured levels of empathy were analysed.

The results provide insights into how empathic abilities interact with performance. The measurement indicates that, on average, professionals in the civil engineering industry score relatively low on empathy. In addition, differences were identified between the expected distribution and the measured empathy levels of the team, implying a potential for improvement, in particular by increasing the empathic abilities of the project management and increasing gender diversity.

To the best of the authors’ knowledge, this study is the first to investigate a relationship between empathy and the performance of civil engineering projects. The results provide initial insights into the empathic ability of civil engineering project teams and the potential of empathy to improve performance. Furthermore, from an empathy perspective, this study advocates increasing the gender diversity of project teams to improve performance.

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The potential of the empathic ability for the performance of civil engineering projects10.1108/JEDT-08-2022-0431Journal of Engineering, Design and Technology2023-08-11© 2023 Guus Keusters, Frédérique Batelaan, Froukje SleeswijkVisser, Erik-Jan Houwing and Hans Bakker.Guus KeustersFrédérique BatelaanFroukje SleeswijkVisserErik-Jan HouwingHans BakkerJournal of Engineering, Design and Technologyahead-of-printahead-of-print2023-08-1110.1108/JEDT-08-2022-0431https://www.emerald.com/insight/content/doi/10.1108/JEDT-08-2022-0431/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2023 Guus Keusters, Frédérique Batelaan, Froukje SleeswijkVisser, Erik-Jan Houwing and Hans Bakker.http://creativecommons.org/licences/by/4.0/legalcode
Fuzzy synthetic evaluation of the factors affecting health and safety practices in Malaysia construction industryhttps://www.emerald.com/insight/content/doi/10.1108/JEDT-08-2022-0432/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestThe construction industry has been recording a high number of accidents without any sign of abating, the majority of which have been linked to poor health and safety practices. To reduce this menace, this study aims to evaluate the factors affecting health and safety practices on construction sites to improve health and safety practices. First, this study reviewed previous studies to derive the factors affecting health and safety practices on construction sites, and based on the literature review, the 50 factors identified were used in developing the questionnaire that was administered to construction professionals. The returned questionnaire was then analysed using fuzzy synthetic evaluation (FSE). According to the FSE results, inadequate safety planning has the highest critical value, followed by management failure, inadequate safety promotion, safety ignorance, poor supervision and enforcement, a casual attitude towards safety and insufficient experience. The analysis showed that the overall criticality of the factors to the Malaysian construction industry is high, suggesting that if addressed, the health and safety practices of the industry will be improved. The study provides a holistic approach to the factors affecting health and safety practices in the construction industry using a method that has not been used by previous researchers. The findings will furnish decision makers in the construction industry with practical approaches to adapt and reinforce in the industry to improve health and safety practices.Fuzzy synthetic evaluation of the factors affecting health and safety practices in Malaysia construction industry
Olatoyese Zaccheus Oni, AbdulLateef Olanrewaju, Soo Cheen Khor
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

The construction industry has been recording a high number of accidents without any sign of abating, the majority of which have been linked to poor health and safety practices. To reduce this menace, this study aims to evaluate the factors affecting health and safety practices on construction sites to improve health and safety practices.

First, this study reviewed previous studies to derive the factors affecting health and safety practices on construction sites, and based on the literature review, the 50 factors identified were used in developing the questionnaire that was administered to construction professionals. The returned questionnaire was then analysed using fuzzy synthetic evaluation (FSE).

According to the FSE results, inadequate safety planning has the highest critical value, followed by management failure, inadequate safety promotion, safety ignorance, poor supervision and enforcement, a casual attitude towards safety and insufficient experience. The analysis showed that the overall criticality of the factors to the Malaysian construction industry is high, suggesting that if addressed, the health and safety practices of the industry will be improved.

The study provides a holistic approach to the factors affecting health and safety practices in the construction industry using a method that has not been used by previous researchers. The findings will furnish decision makers in the construction industry with practical approaches to adapt and reinforce in the industry to improve health and safety practices.

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Fuzzy synthetic evaluation of the factors affecting health and safety practices in Malaysia construction industry10.1108/JEDT-08-2022-0432Journal of Engineering, Design and Technology2023-01-05© 2022 Emerald Publishing LimitedOlatoyese Zaccheus OniAbdulLateef OlanrewajuSoo Cheen KhorJournal of Engineering, Design and Technologyahead-of-printahead-of-print2023-01-0510.1108/JEDT-08-2022-0432https://www.emerald.com/insight/content/doi/10.1108/JEDT-08-2022-0432/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2022 Emerald Publishing Limited
An analytical approach for the determination of helical gear tooth geometryhttps://www.emerald.com/insight/content/doi/10.1108/JEDT-08-2022-0446/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestThis paper aims to present an analytical approach for the determination of helical gear tooth geometry and introduces the necessary parameters. Tooth geometry including tooth chamfer, involute curve, root fillet, helix as well as tooth microgeometry can be obtained using the presented approach. The presented analytical approach involves deriving the equivalent equations at the transverse plane rather than the normal plane. Moreover, numerical evaluation of microgeometry modifications is presented for tooth profile, tooth lead and flank twist. An analytical approach is presented and equations are derived and explained in detail for helical gear tooth geometry calculation, including tooth microgeometry. Method 1, which was presented by Lopez and Wheway (1986) for obtaining the root fillet, is examined and it is proven that it does not work accurately for helical gears, but rather it works perfectly in the case of spur gears. Changing the normal plane parameters in Method 1 to the transverse plane ones does not give correct results. Two alternative methods, namely, Methods 2 and 3, are developed in the current research for the calculation of the tooth root fillet of helical gears. The presented methods and also the numerical evaluation presented for microgeometry modification are examined against the geometry obtained from Windows LDP software. The results show very good agreement, and it is feasible to apply the approach using the presented equations. In the gear design process, it is important to model the correct gear tooth geometry and deliver all related dimensions and calculations accurately. However, the determination of helical gear tooth geometry has not been presented adequately by equations to facilitate gear modelling. The detailed helical gear tooth root has been enveloped using software tools that can simulate the cutter motion. Deriving those equations, presented in this article, provides gear design engineers and researchers with the possibility to model helical gears and perform design calculations in a structured, applicable and accurate method.An analytical approach for the determination of helical gear tooth geometry
Omar D. Mohammed
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

This paper aims to present an analytical approach for the determination of helical gear tooth geometry and introduces the necessary parameters. Tooth geometry including tooth chamfer, involute curve, root fillet, helix as well as tooth microgeometry can be obtained using the presented approach.

The presented analytical approach involves deriving the equivalent equations at the transverse plane rather than the normal plane. Moreover, numerical evaluation of microgeometry modifications is presented for tooth profile, tooth lead and flank twist.

An analytical approach is presented and equations are derived and explained in detail for helical gear tooth geometry calculation, including tooth microgeometry. Method 1, which was presented by Lopez and Wheway (1986) for obtaining the root fillet, is examined and it is proven that it does not work accurately for helical gears, but rather it works perfectly in the case of spur gears. Changing the normal plane parameters in Method 1 to the transverse plane ones does not give correct results. Two alternative methods, namely, Methods 2 and 3, are developed in the current research for the calculation of the tooth root fillet of helical gears. The presented methods and also the numerical evaluation presented for microgeometry modification are examined against the geometry obtained from Windows LDP software. The results show very good agreement, and it is feasible to apply the approach using the presented equations.

In the gear design process, it is important to model the correct gear tooth geometry and deliver all related dimensions and calculations accurately. However, the determination of helical gear tooth geometry has not been presented adequately by equations to facilitate gear modelling. The detailed helical gear tooth root has been enveloped using software tools that can simulate the cutter motion. Deriving those equations, presented in this article, provides gear design engineers and researchers with the possibility to model helical gears and perform design calculations in a structured, applicable and accurate method.

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An analytical approach for the determination of helical gear tooth geometry10.1108/JEDT-08-2022-0446Journal of Engineering, Design and Technology2023-03-15© 2023 Emerald Publishing LimitedOmar D. MohammedJournal of Engineering, Design and Technologyahead-of-printahead-of-print2023-03-1510.1108/JEDT-08-2022-0446https://www.emerald.com/insight/content/doi/10.1108/JEDT-08-2022-0446/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2023 Emerald Publishing Limited
Evaluating Construction 4.0 technologies in enhancing safety and health: case study of a national strategic planhttps://www.emerald.com/insight/content/doi/10.1108/JEDT-08-2023-0330/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestPolicymakers are developing national strategic plans to encourage organizations to adopt Construction 4.0 technologies. However, organizations often adopt the recommended technologies without aligning with organizational vision. Furthermore, there is no prioritization on which Construction 4.0 technology should be adopted, including the impact of the technologies on different criteria such as safety and health. Therefore, this study aims to evaluate Construction 4.0 technologies listed in a national strategic plan that targets the enhancement of safety and health. A list of Construction 4.0 technologies from a national strategic plan is evaluated using the fuzzy technique for order preference by similarity to ideal solution (TOPSIS) method. Then, the data are analyzed using reliability, fuzzy TOPSIS, normalization, Pareto, sensitivity, ranking and correlation analyses. The analyses identified six Construction 4.0 technologies that are critical in enhancing safety and health: Internet of Things, autonomous construction, big data and predictive analytics, artificial Intelligence, building information modeling and augmented reality and virtualization. In addition, six pairs of Construction 4.0 technologies illustrate strong relationships. This study contributes to the existing body of knowledge by ranking a list of Construction 4.0 technologies in a national strategic plan that targets the enhancement of safety and health. Decision-makers can use the study findings to prioritize the technologies during the adoption process. Also, to the best of the authors’ knowledge, this study is the first to evaluate the impact of Construction 4.0 technologies listed in a national strategic plan on a specific criterion.Evaluating Construction 4.0 technologies in enhancing safety and health: case study of a national strategic plan
Hazwani Shafei, Rahimi A. Rahman, Yong Siang Lee
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

Policymakers are developing national strategic plans to encourage organizations to adopt Construction 4.0 technologies. However, organizations often adopt the recommended technologies without aligning with organizational vision. Furthermore, there is no prioritization on which Construction 4.0 technology should be adopted, including the impact of the technologies on different criteria such as safety and health. Therefore, this study aims to evaluate Construction 4.0 technologies listed in a national strategic plan that targets the enhancement of safety and health.

A list of Construction 4.0 technologies from a national strategic plan is evaluated using the fuzzy technique for order preference by similarity to ideal solution (TOPSIS) method. Then, the data are analyzed using reliability, fuzzy TOPSIS, normalization, Pareto, sensitivity, ranking and correlation analyses.

The analyses identified six Construction 4.0 technologies that are critical in enhancing safety and health: Internet of Things, autonomous construction, big data and predictive analytics, artificial Intelligence, building information modeling and augmented reality and virtualization. In addition, six pairs of Construction 4.0 technologies illustrate strong relationships.

This study contributes to the existing body of knowledge by ranking a list of Construction 4.0 technologies in a national strategic plan that targets the enhancement of safety and health. Decision-makers can use the study findings to prioritize the technologies during the adoption process. Also, to the best of the authors’ knowledge, this study is the first to evaluate the impact of Construction 4.0 technologies listed in a national strategic plan on a specific criterion.

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Evaluating Construction 4.0 technologies in enhancing safety and health: case study of a national strategic plan10.1108/JEDT-08-2023-0330Journal of Engineering, Design and Technology2024-01-29© 2024 Emerald Publishing LimitedHazwani ShafeiRahimi A. RahmanYong Siang LeeJournal of Engineering, Design and Technologyahead-of-printahead-of-print2024-01-2910.1108/JEDT-08-2023-0330https://www.emerald.com/insight/content/doi/10.1108/JEDT-08-2023-0330/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2024 Emerald Publishing Limited
Assessing critical barriers and success factors of PPP projects in emerging economies: a case of Vietnamhttps://www.emerald.com/insight/content/doi/10.1108/JEDT-08-2023-0340/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestPublic–private partnership (PPP) projects play a pivotal role in fostering infrastructure development in developing countries. This study aims to identify major barriers and critical success factors (CSFs) for PPP projects in Vietnam. The study initially conducted an extensive literature review and interviewed industry experts to compile a comprehensive list of barriers and success factors. Subsequently, a survey involving 250 construction professionals was conducted to assess these identified factors. The research used both ANOVA test and hierarchical regression analysis to explore the relationship between participants’ characteristics and assessments. The results could provide a valuable reference for practitioners by assessing barriers and CSFs in PPP projects. Specifically, the ANOVA analysis indicated a positive correlation between barrier assessment and participants’ experience, while the influence of participants’ sector on the evaluation was minor. Furthermore, the hierarchical regression analysis demonstrated that participants’ sector did not moderate the relationship between barrier assessment and industry experience. This research contributes to the existing literature by offering empirical insights into barriers and CSFs specific to PPP projects in a developing country context. The findings highlight the crucial role of experienced professionals in ensuring PPP project success. Moreover, the study provides construction practitioners with a better understanding of the essential factors and supports the development of effective management strategies for future PPP projects.Assessing critical barriers and success factors of PPP projects in emerging economies: a case of Vietnam
Hung Duy Nguyen, Tuan Anh Nguyen, Vi Vu Doan, Chau Ngoc Dang
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

Public–private partnership (PPP) projects play a pivotal role in fostering infrastructure development in developing countries. This study aims to identify major barriers and critical success factors (CSFs) for PPP projects in Vietnam.

The study initially conducted an extensive literature review and interviewed industry experts to compile a comprehensive list of barriers and success factors. Subsequently, a survey involving 250 construction professionals was conducted to assess these identified factors. The research used both ANOVA test and hierarchical regression analysis to explore the relationship between participants’ characteristics and assessments.

The results could provide a valuable reference for practitioners by assessing barriers and CSFs in PPP projects. Specifically, the ANOVA analysis indicated a positive correlation between barrier assessment and participants’ experience, while the influence of participants’ sector on the evaluation was minor. Furthermore, the hierarchical regression analysis demonstrated that participants’ sector did not moderate the relationship between barrier assessment and industry experience.

This research contributes to the existing literature by offering empirical insights into barriers and CSFs specific to PPP projects in a developing country context. The findings highlight the crucial role of experienced professionals in ensuring PPP project success. Moreover, the study provides construction practitioners with a better understanding of the essential factors and supports the development of effective management strategies for future PPP projects.

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Assessing critical barriers and success factors of PPP projects in emerging economies: a case of Vietnam10.1108/JEDT-08-2023-0340Journal of Engineering, Design and Technology2023-11-02© 2023 Emerald Publishing LimitedHung Duy NguyenTuan Anh NguyenVi Vu DoanChau Ngoc DangJournal of Engineering, Design and Technologyahead-of-printahead-of-print2023-11-0210.1108/JEDT-08-2023-0340https://www.emerald.com/insight/content/doi/10.1108/JEDT-08-2023-0340/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2023 Emerald Publishing Limited
Towards a successful implementation of buildability assessment in construction industry: a conceptual frameworkhttps://www.emerald.com/insight/content/doi/10.1108/JEDT-08-2023-0359/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestThe application of good buildability practices is vital for improving the performance of projects and businesses in the construction sector. Despite the plethora of research into buildability in construction in the previous years, there is little information concerning how buildability practice can be successfully implemented. This paper aims to develop a conceptual framework that explains how buildability practice can be implemented successfully in the construction industry. The paper uses an integrative literature review method to synthesise literature from different domains to describe various themes by which buildability assessment can be successfully implemented in the construction industry. The findings of the review of literature conceptualised a buildability implementation framework at four principal themes: buildability attributes for improving the practice of construction management, factors supporting the implementation of buildability assessment, measures for improving the buildability of building designs and factors impeding the implementation of buildability assessment. The outcome of this study contributes to knowledge in three different ways. First, the framework emerging from this study provides guidance to stakeholders on strategies for the successful implementation of buildability. Second, the information gathered in this study is useful for the development of buildability assessment tool. Finally, the framework has a potential of improving the practice of embedding buildability into designs. The detailed descriptions of the relevant variables at each principal theme advance the understanding of buildability in the construction industry and are fundamental to developing buildability assessment tools for the industry.Towards a successful implementation of buildability assessment in construction industry: a conceptual framework
Innocent Chigozie Osuizugbo, Fidelis Okechukwu Ezeokoli, Kevin Chuks Okolie, Aduragbemi Deborah Olojo
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

The application of good buildability practices is vital for improving the performance of projects and businesses in the construction sector. Despite the plethora of research into buildability in construction in the previous years, there is little information concerning how buildability practice can be successfully implemented. This paper aims to develop a conceptual framework that explains how buildability practice can be implemented successfully in the construction industry.

The paper uses an integrative literature review method to synthesise literature from different domains to describe various themes by which buildability assessment can be successfully implemented in the construction industry.

The findings of the review of literature conceptualised a buildability implementation framework at four principal themes: buildability attributes for improving the practice of construction management, factors supporting the implementation of buildability assessment, measures for improving the buildability of building designs and factors impeding the implementation of buildability assessment.

The outcome of this study contributes to knowledge in three different ways. First, the framework emerging from this study provides guidance to stakeholders on strategies for the successful implementation of buildability. Second, the information gathered in this study is useful for the development of buildability assessment tool. Finally, the framework has a potential of improving the practice of embedding buildability into designs. The detailed descriptions of the relevant variables at each principal theme advance the understanding of buildability in the construction industry and are fundamental to developing buildability assessment tools for the industry.

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Towards a successful implementation of buildability assessment in construction industry: a conceptual framework10.1108/JEDT-08-2023-0359Journal of Engineering, Design and Technology2024-02-01© 2024 Emerald Publishing LimitedInnocent Chigozie OsuizugboFidelis Okechukwu EzeokoliKevin Chuks OkolieAduragbemi Deborah OlojoJournal of Engineering, Design and Technologyahead-of-printahead-of-print2024-02-0110.1108/JEDT-08-2023-0359https://www.emerald.com/insight/content/doi/10.1108/JEDT-08-2023-0359/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2024 Emerald Publishing Limited
Improved black widow-bear smell search algorithm (IBWBSA) for optimal planning and operation of distributed generators in distribution systemhttps://www.emerald.com/insight/content/doi/10.1108/JEDT-09-2020-0362/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestThis paper aims to propose, the multi-objective method for optimal planning and operation of distributed generators (DGs) on distribution system (DS) using hybrid technique is proposed. The proposed hybrid technique denotes hybrid wrapper of black widow optimization algorithm (BWOA) and bear smell search algorithm (BSSA). BWOA accelerates the convergence speed with combination of the search strategy of BSSA; hence, it is named as improved black widow-bear smell search algorithm (IBWBSA) technique. The multiple-objective operation denotes reducing generation cost, power loss, voltage deviation with optimally planning and operating the DS. For setting up the DG units on DS, IBWBSA technique is equipped to simultaneously reconfigure and find the optimal areas. In this planning model, the constraints are power balance, obvious power flow limit, bus voltage, distribution substation’s capacity and cost. Then, proposed multiple-objective hybrid method to plan electrical distribution scheme is executed in the MATLAB/Simulink work site.Improved black widow-bear smell search algorithm (IBWBSA) for optimal planning and operation of distributed generators in distribution system
Sathish K. R., T. Ananthapadmanabha
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

This paper aims to propose, the multi-objective method for optimal planning and operation of distributed generators (DGs) on distribution system (DS) using hybrid technique is proposed.

The proposed hybrid technique denotes hybrid wrapper of black widow optimization algorithm (BWOA) and bear smell search algorithm (BSSA). BWOA accelerates the convergence speed with combination of the search strategy of BSSA; hence, it is named as improved black widow-bear smell search algorithm (IBWBSA) technique.

The multiple-objective operation denotes reducing generation cost, power loss, voltage deviation with optimally planning and operating the DS. For setting up the DG units on DS, IBWBSA technique is equipped to simultaneously reconfigure and find the optimal areas.

In this planning model, the constraints are power balance, obvious power flow limit, bus voltage, distribution substation’s capacity and cost. Then, proposed multiple-objective hybrid method to plan electrical distribution scheme is executed in the MATLAB/Simulink work site.

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Improved black widow-bear smell search algorithm (IBWBSA) for optimal planning and operation of distributed generators in distribution system10.1108/JEDT-09-2020-0362Journal of Engineering, Design and Technology2021-03-22© 2021 Emerald Publishing LimitedSathish K. R.T. AnanthapadmanabhaJournal of Engineering, Design and Technologyahead-of-printahead-of-print2021-03-2210.1108/JEDT-09-2020-0362https://www.emerald.com/insight/content/doi/10.1108/JEDT-09-2020-0362/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2021 Emerald Publishing Limited
Advanced pest detection strategy using hybrid optimization tuned deep convolutional neural networkhttps://www.emerald.com/insight/content/doi/10.1108/JEDT-09-2021-0488/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestAgriculture is the backbone of a country, contributing more than half of the sector of economy throughout the world. The need for precision agriculture is essential in evaluating the conditions of the crops with the aim of determining the proper selection of pesticides. The conventional method of pest detection fails to be stable and provides limited accuracy in the prediction. This paper aims to propose an automatic pest detection module for the accurate detection of pests using the hybrid optimization controlled deep learning model. The paper proposes an advanced pest detection strategy based on deep learning strategy through wireless sensor network (WSN) in the agricultural fields. Initially, the WSN consisting of number of nodes and a sink are clustered as number of clusters. Each cluster comprises a cluster head (CH) and a number of nodes, where the CH involves in the transfer of data to the sink node of the WSN and the CH is selected using the fractional ant bee colony optimization (FABC) algorithm. The routing process is executed using the protruder optimization algorithm that helps in the transfer of image data to the sink node through the optimal CH. The sink node acts as the data aggregator and the collection of image data thus obtained acts as the input database to be processed to find the type of pest in the agricultural field. The image data is pre-processed to remove the artifacts present in the image and the pre-processed image is then subjected to feature extraction process, through which the significant local directional pattern, local binary pattern, local optimal-oriented pattern (LOOP) and local ternary pattern (LTP) features are extracted. The extracted features are then fed to the deep-convolutional neural network (CNN) in such a way to detect the type of pests in the agricultural field. The weights of the deep-CNN are tuned optimally using the proposed MFGHO optimization algorithm that is developed with the combined characteristics of navigating search agents and the swarming search agents. The analysis using insect identification from habitus image Database based on the performance metrics, such as accuracy, specificity and sensitivity, reveals the effectiveness of the proposed MFGHO-based deep-CNN in detecting the pests in crops. The analysis proves that the proposed classifier using the FABC+protruder optimization-based data aggregation strategy obtains an accuracy of 94.3482%, sensitivity of 93.3247% and the specificity of 94.5263%, which is high as compared to the existing methods. The proposed MFGHO optimization-based deep-CNN is used for the detection of pest in the crop fields to ensure the better selection of proper cost-effective pesticides for the crop fields in such a way to increase the production. The proposed MFGHO algorithm is developed with the integrated characteristic features of navigating search agents and the swarming search agents in such a way to facilitate the optimal tuning of the hyperparameters in the deep-CNN classifier for the detection of pests in the crop fields.Advanced pest detection strategy using hybrid optimization tuned deep convolutional neural network
Prajakta Thakare, Ravi Sankar V.
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

Agriculture is the backbone of a country, contributing more than half of the sector of economy throughout the world. The need for precision agriculture is essential in evaluating the conditions of the crops with the aim of determining the proper selection of pesticides. The conventional method of pest detection fails to be stable and provides limited accuracy in the prediction. This paper aims to propose an automatic pest detection module for the accurate detection of pests using the hybrid optimization controlled deep learning model.

The paper proposes an advanced pest detection strategy based on deep learning strategy through wireless sensor network (WSN) in the agricultural fields. Initially, the WSN consisting of number of nodes and a sink are clustered as number of clusters. Each cluster comprises a cluster head (CH) and a number of nodes, where the CH involves in the transfer of data to the sink node of the WSN and the CH is selected using the fractional ant bee colony optimization (FABC) algorithm. The routing process is executed using the protruder optimization algorithm that helps in the transfer of image data to the sink node through the optimal CH. The sink node acts as the data aggregator and the collection of image data thus obtained acts as the input database to be processed to find the type of pest in the agricultural field. The image data is pre-processed to remove the artifacts present in the image and the pre-processed image is then subjected to feature extraction process, through which the significant local directional pattern, local binary pattern, local optimal-oriented pattern (LOOP) and local ternary pattern (LTP) features are extracted. The extracted features are then fed to the deep-convolutional neural network (CNN) in such a way to detect the type of pests in the agricultural field. The weights of the deep-CNN are tuned optimally using the proposed MFGHO optimization algorithm that is developed with the combined characteristics of navigating search agents and the swarming search agents.

The analysis using insect identification from habitus image Database based on the performance metrics, such as accuracy, specificity and sensitivity, reveals the effectiveness of the proposed MFGHO-based deep-CNN in detecting the pests in crops. The analysis proves that the proposed classifier using the FABC+protruder optimization-based data aggregation strategy obtains an accuracy of 94.3482%, sensitivity of 93.3247% and the specificity of 94.5263%, which is high as compared to the existing methods.

The proposed MFGHO optimization-based deep-CNN is used for the detection of pest in the crop fields to ensure the better selection of proper cost-effective pesticides for the crop fields in such a way to increase the production. The proposed MFGHO algorithm is developed with the integrated characteristic features of navigating search agents and the swarming search agents in such a way to facilitate the optimal tuning of the hyperparameters in the deep-CNN classifier for the detection of pests in the crop fields.

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Advanced pest detection strategy using hybrid optimization tuned deep convolutional neural network10.1108/JEDT-09-2021-0488Journal of Engineering, Design and Technology2022-02-17© 2020 Emerald Publishing LimitedPrajakta ThakareRavi Sankar V.Journal of Engineering, Design and Technologyahead-of-printahead-of-print2022-02-1710.1108/JEDT-09-2021-0488https://www.emerald.com/insight/content/doi/10.1108/JEDT-09-2021-0488/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2020 Emerald Publishing Limited
A new solar powered robotic arm guided master–slave electric motors of biomass conveyorhttps://www.emerald.com/insight/content/doi/10.1108/JEDT-09-2021-0496/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestElectric motor heating during biomass recovery and its handling on conveyor is a serious concern for the motor performance. Thus, the purpose of this paper is to design and develop a hardware prototype of master–slave electric motors based biomass conveyor system to use the motors under normal operating conditions without overheating. The hardware prototype of the system used master–slave electric motors for embedded controller operated robotic arm to automatically replace conveyor motors by one another. A mixed signal based embedded controller (C8051F226DK), fully compliant with IEEE 1149.1 specifications, was used to operate the entire system. A precise temperature measurement of motor with the help of negative temperature coefficient sensor was possible due to the utilization of industry standard temperature controller (N76E003AT20). Also, a pulse width modulation based speed control was achieved for master–slave motors of biomass conveyor. As compared to conventional energy based mains supply, the system is self-sufficient to extract more energy from solar supply with an energy increase of 11.38%. With respect to conventional energy based \ of 47.31%, solar energy based higher energy saving of 52.69% was reported. Also, the work achieved higher temperature reduction of 34.26% of the motor as compared to previous cooling options. The proposed technique is free from air, liquid and phase-changing material based cooling materials. As a consequence, the work prevents the wastage of these materials and does not cause the risk of health hazards. Also, the motors are used with their original dimensions without facing any leakage problems.A new solar powered robotic arm guided master–slave electric motors of biomass conveyor
Manish Kumar Ghodki
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

Electric motor heating during biomass recovery and its handling on conveyor is a serious concern for the motor performance. Thus, the purpose of this paper is to design and develop a hardware prototype of master–slave electric motors based biomass conveyor system to use the motors under normal operating conditions without overheating.

The hardware prototype of the system used master–slave electric motors for embedded controller operated robotic arm to automatically replace conveyor motors by one another. A mixed signal based embedded controller (C8051F226DK), fully compliant with IEEE 1149.1 specifications, was used to operate the entire system. A precise temperature measurement of motor with the help of negative temperature coefficient sensor was possible due to the utilization of industry standard temperature controller (N76E003AT20). Also, a pulse width modulation based speed control was achieved for master–slave motors of biomass conveyor.

As compared to conventional energy based mains supply, the system is self-sufficient to extract more energy from solar supply with an energy increase of 11.38%. With respect to conventional energy based \ of 47.31%, solar energy based higher energy saving of 52.69% was reported. Also, the work achieved higher temperature reduction of 34.26% of the motor as compared to previous cooling options.

The proposed technique is free from air, liquid and phase-changing material based cooling materials. As a consequence, the work prevents the wastage of these materials and does not cause the risk of health hazards. Also, the motors are used with their original dimensions without facing any leakage problems.

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A new solar powered robotic arm guided master–slave electric motors of biomass conveyor10.1108/JEDT-09-2021-0496Journal of Engineering, Design and Technology2022-02-17© 2022 Emerald Publishing LimitedManish Kumar GhodkiJournal of Engineering, Design and Technologyahead-of-printahead-of-print2022-02-1710.1108/JEDT-09-2021-0496https://www.emerald.com/insight/content/doi/10.1108/JEDT-09-2021-0496/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2022 Emerald Publishing Limited
Innovation management framework for achieving sustainability through managing risks of innovative solutions during the design processhttps://www.emerald.com/insight/content/doi/10.1108/JEDT-09-2022-0495/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestThis paper aims to develop an innovation management framework for achieving sustainability by managing risks associated with innovative solutions during the design process. To achieve the abovementioned aim, a research methodology was designed to achieve four objectives. Firstly, a literature review was conducted to investigate the concepts of sustainability, innovation, innovation management and innovation and the design process. Secondly, three case studies were selected and analysed to validate the identified risks of innovation and to investigate the role of innovation management towards managing risks of innovation during the design process. Thirdly, a survey questionnaire was carried out with a representative sample of architectural design firms (ADFs) in Egypt to examine their perception and application of innovation management as an approach to managing risks of innovative solutions during the design process. Finally, developing an innovation management framework to achieve sustainability through managing risks associated with innovative solutions during the design process. The literature review revealed that innovation plays a significant role towards achieving sustainability objectives, but integrating innovative solutions during the design process is frequently associated with risks. During the course of this research, 30 risks of innovation were identified and classified into four categories of product, process, person and press. Case studies showed that ADFs that applied innovation management approaches were successful in managing the risks associated with innovative solutions, whereas others that failed to use such approaches failed to meet sustainability objectives. Results of the survey questionnaire revealed that ADFs not only recognised the importance of innovative solutions in developing sustainable projects but also showed a gap between theory and practice. “Project delivery” is the most important type of innovation for ADFs in Egypt, followed by “building technologies” and “organisational culture”. Moreover, there is a misalignment between ADFs’ perceptions and the strategies used to deliver successful innovations. The highest risks of innovation are “unanticipated cost of innovation”, “manufacturing technologies and development issues” and “failing to meet technical criteria”. Because of the conceptual nature of the developed framework, it has to be tested and validated to ensure its capability to achieve sustainability through managing the risks of innovative solutions during the design process which, in this research, adopted the Royal Institute of British Architects plan of work stages. Moreover, the lack of data availability directed this study to present and analyse only three case studies. This research presents a practical solution to achieve sustainability through managing risks of innovation during the design process. It is a structured tool that can be used by ADFs in Egypt towards facilitating the shift in the direction of a more economically viable, environmentally friendly and socially acceptable built environment. Although innovative design solutions are needed in developing sustainable buildings, a practical and systematic framework to manage associated risks during the design process is still lacking. In addition, current studies are business-oriented and need to be reinterpreted to fit with the architectural, engineering and construction disciplines. Thus, this research developed an innovation management framework to achieve sustainability through managing the risks associated with innovative solutions during the design process, which represents a synthesis that is novel and creative in thought and adds value to the knowledge in a manner that has not been previously explored.Innovation management framework for achieving sustainability through managing risks of innovative solutions during the design process
Ayman Ahmed Ezzat Othman, Rawan Medhat Hussein
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

This paper aims to develop an innovation management framework for achieving sustainability by managing risks associated with innovative solutions during the design process.

To achieve the abovementioned aim, a research methodology was designed to achieve four objectives. Firstly, a literature review was conducted to investigate the concepts of sustainability, innovation, innovation management and innovation and the design process. Secondly, three case studies were selected and analysed to validate the identified risks of innovation and to investigate the role of innovation management towards managing risks of innovation during the design process. Thirdly, a survey questionnaire was carried out with a representative sample of architectural design firms (ADFs) in Egypt to examine their perception and application of innovation management as an approach to managing risks of innovative solutions during the design process. Finally, developing an innovation management framework to achieve sustainability through managing risks associated with innovative solutions during the design process.

The literature review revealed that innovation plays a significant role towards achieving sustainability objectives, but integrating innovative solutions during the design process is frequently associated with risks. During the course of this research, 30 risks of innovation were identified and classified into four categories of product, process, person and press. Case studies showed that ADFs that applied innovation management approaches were successful in managing the risks associated with innovative solutions, whereas others that failed to use such approaches failed to meet sustainability objectives. Results of the survey questionnaire revealed that ADFs not only recognised the importance of innovative solutions in developing sustainable projects but also showed a gap between theory and practice. “Project delivery” is the most important type of innovation for ADFs in Egypt, followed by “building technologies” and “organisational culture”. Moreover, there is a misalignment between ADFs’ perceptions and the strategies used to deliver successful innovations. The highest risks of innovation are “unanticipated cost of innovation”, “manufacturing technologies and development issues” and “failing to meet technical criteria”.

Because of the conceptual nature of the developed framework, it has to be tested and validated to ensure its capability to achieve sustainability through managing the risks of innovative solutions during the design process which, in this research, adopted the Royal Institute of British Architects plan of work stages. Moreover, the lack of data availability directed this study to present and analyse only three case studies.

This research presents a practical solution to achieve sustainability through managing risks of innovation during the design process. It is a structured tool that can be used by ADFs in Egypt towards facilitating the shift in the direction of a more economically viable, environmentally friendly and socially acceptable built environment.

Although innovative design solutions are needed in developing sustainable buildings, a practical and systematic framework to manage associated risks during the design process is still lacking. In addition, current studies are business-oriented and need to be reinterpreted to fit with the architectural, engineering and construction disciplines. Thus, this research developed an innovation management framework to achieve sustainability through managing the risks associated with innovative solutions during the design process, which represents a synthesis that is novel and creative in thought and adds value to the knowledge in a manner that has not been previously explored.

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Innovation management framework for achieving sustainability through managing risks of innovative solutions during the design process10.1108/JEDT-09-2022-0495Journal of Engineering, Design and Technology2023-02-03© 2023 Emerald Publishing LimitedAyman Ahmed Ezzat OthmanRawan Medhat HusseinJournal of Engineering, Design and Technologyahead-of-printahead-of-print2023-02-0310.1108/JEDT-09-2022-0495https://www.emerald.com/insight/content/doi/10.1108/JEDT-09-2022-0495/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2023 Emerald Publishing Limited
Job crafting-job embeddedness linkage of construction professionals: moderating effect of career stageshttps://www.emerald.com/insight/content/doi/10.1108/JEDT-09-2022-0498/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestConstruction managers must focus on effective job design to develop and harness employee talent and achieve organizational goals. Because psychological needs and key motivators vary by career stage, a differentiated employee value proposition is crucial for a firm’s retention strategy. This study aims to examine how job crafting (JC) affects job embeddedness (JE) at different career stages. In this investigation, a quantitative methodology was used. In total, 272 construction industry professionals from 25 construction firms in Abu Dhabi, United Arab Emirates, provided the data. Through the use of structural equation modeling, hypotheses were evaluated. The results show that JC enhances construction professionals’ JE (β = 0.60, p < 0.000). Moreover, the relationship between JC and JE is moderated by career stages. The impact of JC on JE is greater among longer tenured (late-career stages, β = 0.61, p < 0.000) than shorter tenured construction professionals (early-career stages, β = 0.60, p < 0.000 and mid-career stages, β = 0.58, p < 0.000). Limited research shows how JC can improve JE. At the time of this research, there was no published work on JC and JE relationship in the construction industry. This research found that JC has a positive impact on JE and JC behavior applies at both individual and team levels. This could imply that construction professionals with longer organizational tenure are more likely to challenge the status quo and identify problems or opportunities for improvement, hence contributes to JE theory.Job crafting-job embeddedness linkage of construction professionals: moderating effect of career stages
Mustafa AlMemari, Khalizani Khalid, Abdullah Osman
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

Construction managers must focus on effective job design to develop and harness employee talent and achieve organizational goals. Because psychological needs and key motivators vary by career stage, a differentiated employee value proposition is crucial for a firm’s retention strategy. This study aims to examine how job crafting (JC) affects job embeddedness (JE) at different career stages.

In this investigation, a quantitative methodology was used. In total, 272 construction industry professionals from 25 construction firms in Abu Dhabi, United Arab Emirates, provided the data. Through the use of structural equation modeling, hypotheses were evaluated.

The results show that JC enhances construction professionals’ JE (β = 0.60, p < 0.000). Moreover, the relationship between JC and JE is moderated by career stages. The impact of JC on JE is greater among longer tenured (late-career stages, β = 0.61, p < 0.000) than shorter tenured construction professionals (early-career stages, β = 0.60, p < 0.000 and mid-career stages, β = 0.58, p < 0.000).

Limited research shows how JC can improve JE. At the time of this research, there was no published work on JC and JE relationship in the construction industry. This research found that JC has a positive impact on JE and JC behavior applies at both individual and team levels. This could imply that construction professionals with longer organizational tenure are more likely to challenge the status quo and identify problems or opportunities for improvement, hence contributes to JE theory.

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Job crafting-job embeddedness linkage of construction professionals: moderating effect of career stages10.1108/JEDT-09-2022-0498Journal of Engineering, Design and Technology2023-06-05© 2023 Emerald Publishing LimitedMustafa AlMemariKhalizani KhalidAbdullah OsmanJournal of Engineering, Design and Technologyahead-of-printahead-of-print2023-06-0510.1108/JEDT-09-2022-0498https://www.emerald.com/insight/content/doi/10.1108/JEDT-09-2022-0498/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2023 Emerald Publishing Limited
Impact of smart city system on the construction industry in Sri Lankahttps://www.emerald.com/insight/content/doi/10.1108/JEDT-09-2022-0500/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestOne prominent force behind sustainable growth is the growth of smart cities. Governments worldwide are beginning to concentrate on the Smart City System (SCS) towards a sustainable future. The construction sector plays a significant role in the development projects for smart cities. Hence, paying attention to research initiatives for smart cities is necessary because of the need for cooperation between the construction industry and SCS in developing countries. The purpose of this study is to explore the impact of the SCS on the construction industry in Sri Lanka. This study used a mixed approach comprising a series of expert interviews and two rounds of a questionnaire survey. Content and statistical analyses were used to analyse and validate the empirical data collected during the study. The five most significant smart city elements affecting the construction industry were identified: technology and information technology infrastructure, environment, people, economy and governance, along with 15 significant enablers and 17 significant barriers of those smart city elements. Further, 18 significant strategies that can be adopted to overcome the barriers and enhance the enablers of those smart city elements were identified. This study’s findings reveal that the synergy between the construction industry and the SCS would be a valuable reference for future studies in similar contexts. The construction industry in Sri Lanka will also benefit from the study findings, as the findings would help to improve the link between construction and smart cities. This study significantly benefits the society by revealing cost-effective ways to accelerate construction processes and develop cities sustainably.Impact of smart city system on the construction industry in Sri Lanka
L.B. Kulasekara, B.A.K.S Perera, H.A.H.P. Perera
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

One prominent force behind sustainable growth is the growth of smart cities. Governments worldwide are beginning to concentrate on the Smart City System (SCS) towards a sustainable future. The construction sector plays a significant role in the development projects for smart cities. Hence, paying attention to research initiatives for smart cities is necessary because of the need for cooperation between the construction industry and SCS in developing countries. The purpose of this study is to explore the impact of the SCS on the construction industry in Sri Lanka.

This study used a mixed approach comprising a series of expert interviews and two rounds of a questionnaire survey. Content and statistical analyses were used to analyse and validate the empirical data collected during the study.

The five most significant smart city elements affecting the construction industry were identified: technology and information technology infrastructure, environment, people, economy and governance, along with 15 significant enablers and 17 significant barriers of those smart city elements. Further, 18 significant strategies that can be adopted to overcome the barriers and enhance the enablers of those smart city elements were identified.

This study’s findings reveal that the synergy between the construction industry and the SCS would be a valuable reference for future studies in similar contexts. The construction industry in Sri Lanka will also benefit from the study findings, as the findings would help to improve the link between construction and smart cities. This study significantly benefits the society by revealing cost-effective ways to accelerate construction processes and develop cities sustainably.

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Impact of smart city system on the construction industry in Sri Lanka10.1108/JEDT-09-2022-0500Journal of Engineering, Design and Technology2023-08-16© 2023 Emerald Publishing LimitedL.B. KulasekaraB.A.K.S PereraH.A.H.P. PereraJournal of Engineering, Design and Technologyahead-of-printahead-of-print2023-08-1610.1108/JEDT-09-2022-0500https://www.emerald.com/insight/content/doi/10.1108/JEDT-09-2022-0500/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2023 Emerald Publishing Limited
A bibliometric and scientometric analysis-based review of environmental health and safety research in the construction industryhttps://www.emerald.com/insight/content/doi/10.1108/JEDT-09-2023-0423/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestThe construction business is widely recognised for its inherent complexity and dynamic nature, which stems from the nature of the job involved. The industry is often regarded as one of the most challenging industries globally in terms of implementing environmental, health and safety (EHS) practices. However, in the absence of EHS, the construction industry cannot be considered sustainable. Therefore, this study aims to identify the trends, knowledge gaps and implications of EHS research to enhance construction activities and knowledge. The study adopted a science mapping approach involving bibliometric and scientometric analysis of 407 construction EHS publications from the Scopus database with the VOSviewer software. The study is based on journal articles from the Scopus database without restriction to any time range. The main focus of construction EHS research identified in the study includes sustainability-related studies, risk-related, environmental issues, EHS management, integrated management systems studies, health and safety related and EHS in the construction process. Some emerging areas also identified include productivity, design, culture, social sustainability and machine learning. The most influential and productive publication sources, countries/regions and EHS publications with the highest impact were also determined. Documents published in the Scopus database were considered for analysis because of the wider coverage of the database. Journal articles written in English language represent the inclusion criteria, whereas other documents were excluded from the analysis. The study also limited the search to articles with the engineering subject area. The research findings will enlighten stakeholders and practitioners on the focal knowledge areas in the EHS research domain, which are vital for enhancing EHS in the industry. To the best of the authors’ knowledge, this review-based study is the first attempt to internationally conduct a science mapping on extant literature in the EHS research domain through bibliometric and scientometric assessments.A bibliometric and scientometric analysis-based review of environmental health and safety research in the construction industry
Juliet Owusu-Boadi, Ernest Kissi, Ivy Maame Abu, Cecilia Dapaah Owusu, Bernard Baiden, Caleb Debrah
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

The construction business is widely recognised for its inherent complexity and dynamic nature, which stems from the nature of the job involved. The industry is often regarded as one of the most challenging industries globally in terms of implementing environmental, health and safety (EHS) practices. However, in the absence of EHS, the construction industry cannot be considered sustainable. Therefore, this study aims to identify the trends, knowledge gaps and implications of EHS research to enhance construction activities and knowledge.

The study adopted a science mapping approach involving bibliometric and scientometric analysis of 407 construction EHS publications from the Scopus database with the VOSviewer software. The study is based on journal articles from the Scopus database without restriction to any time range.

The main focus of construction EHS research identified in the study includes sustainability-related studies, risk-related, environmental issues, EHS management, integrated management systems studies, health and safety related and EHS in the construction process. Some emerging areas also identified include productivity, design, culture, social sustainability and machine learning. The most influential and productive publication sources, countries/regions and EHS publications with the highest impact were also determined.

Documents published in the Scopus database were considered for analysis because of the wider coverage of the database. Journal articles written in English language represent the inclusion criteria, whereas other documents were excluded from the analysis. The study also limited the search to articles with the engineering subject area.

The research findings will enlighten stakeholders and practitioners on the focal knowledge areas in the EHS research domain, which are vital for enhancing EHS in the industry.

To the best of the authors’ knowledge, this review-based study is the first attempt to internationally conduct a science mapping on extant literature in the EHS research domain through bibliometric and scientometric assessments.

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A bibliometric and scientometric analysis-based review of environmental health and safety research in the construction industry10.1108/JEDT-09-2023-0423Journal of Engineering, Design and Technology2024-02-21© 2024 Emerald Publishing LimitedJuliet Owusu-BoadiErnest KissiIvy Maame AbuCecilia Dapaah OwusuBernard BaidenCaleb DebrahJournal of Engineering, Design and Technologyahead-of-printahead-of-print2024-02-2110.1108/JEDT-09-2023-0423https://www.emerald.com/insight/content/doi/10.1108/JEDT-09-2023-0423/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2024 Emerald Publishing Limited
Drivers for the implementation of circular economy in the Nigerian AECO industry: a structural equation modelling approachhttps://www.emerald.com/insight/content/doi/10.1108/JEDT-09-2023-0434/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestThis study aims to investigate the drivers influencing the implementation of circular economy principles in the Nigerian architecture, engineering, construction and operation (AECO) industry across diverse regions of Nigeria. A quantitative research approach was adopted, using a structured questionnaire distributed to AECO professionals across four selected regions (North Central, North West, South-South and South West) in Nigeria. The data were analysed using Kruskal–Wallis test and structural equation modelling (SEM). The study findings show a robust consensus of opinions among the respondents across regions and professions. The SEM analysis establishes the significant influence of the hypothesized drivers, regulatory and institutional, supply chain collaboration, technological advancements, organizational support and business strategies on the successful implementation of circular economy principles in the Nigerian AECO industry. The study is limited to specific regions and professions within Nigeria. Further limitation is the quantitative orientation of this study, which collects data using only a questionnaire. The findings imply that stakeholders can adopt a unified approach to promote circular economy principles in the AECO industry. By recognizing the common understanding of circular economy drivers, collaborative efforts can be streamlined to advance sustainability, resource efficiency and circularity in the industry. This study contributes to the nascent field of circular economy implementation in the Nigerian AECO industry. It offers a unique perspective by exploring variations in stakeholder opinions, providing insights into the nuanced understanding of circular economy drivers.Drivers for the implementation of circular economy in the Nigerian AECO industry: a structural equation modelling approach
Abdulkabir Opeyemi Bello, Rasheed Babatunde Isa, Oladayo Popoola Afolabi, Suhaib Arogundade, Ayaz Ahmad Khan
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

This study aims to investigate the drivers influencing the implementation of circular economy principles in the Nigerian architecture, engineering, construction and operation (AECO) industry across diverse regions of Nigeria.

A quantitative research approach was adopted, using a structured questionnaire distributed to AECO professionals across four selected regions (North Central, North West, South-South and South West) in Nigeria. The data were analysed using Kruskal–Wallis test and structural equation modelling (SEM).

The study findings show a robust consensus of opinions among the respondents across regions and professions. The SEM analysis establishes the significant influence of the hypothesized drivers, regulatory and institutional, supply chain collaboration, technological advancements, organizational support and business strategies on the successful implementation of circular economy principles in the Nigerian AECO industry.

The study is limited to specific regions and professions within Nigeria. Further limitation is the quantitative orientation of this study, which collects data using only a questionnaire.

The findings imply that stakeholders can adopt a unified approach to promote circular economy principles in the AECO industry. By recognizing the common understanding of circular economy drivers, collaborative efforts can be streamlined to advance sustainability, resource efficiency and circularity in the industry.

This study contributes to the nascent field of circular economy implementation in the Nigerian AECO industry. It offers a unique perspective by exploring variations in stakeholder opinions, providing insights into the nuanced understanding of circular economy drivers.

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Drivers for the implementation of circular economy in the Nigerian AECO industry: a structural equation modelling approach10.1108/JEDT-09-2023-0434Journal of Engineering, Design and Technology2023-12-18© 2023 Emerald Publishing LimitedAbdulkabir Opeyemi BelloRasheed Babatunde IsaOladayo Popoola AfolabiSuhaib ArogundadeAyaz Ahmad KhanJournal of Engineering, Design and Technologyahead-of-printahead-of-print2023-12-1810.1108/JEDT-09-2023-0434https://www.emerald.com/insight/content/doi/10.1108/JEDT-09-2023-0434/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2023 Emerald Publishing Limited
Government pandemic response strategies for AEC enterprises: lessons from COVID-19https://www.emerald.com/insight/content/doi/10.1108/JEDT-10-2021-0540/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestPolicymakers are developing government-level pandemic response strategies (GPRS) to assist architecture, engineering and construction (AEC) enterprises. However, the effectiveness of the GPRS has not been assessed. Therefore, this study aims to investigate the interrelationships between GPRS and AEC enterprises. To achieve that aim, the study objectives are to compare GPRS effectiveness between small-medium and large AEC enterprises, develop groupings to categorize interrelated GPRS and evaluate the effectiveness of the GPRS and interrelated constructs. A systematic literature review and semi-structured interviews with 40 AEC industry professionals were carried out, generating 22 GPRS. Then, questionnaire survey data was collected among AEC professionals. In total, 114 valid survey answers were received and analyzed using the Kruskal–Wallis H test, normalized mean analysis, factor analysis and fuzzy synthetic evaluation. Small-medium enterprises have four distinct critical GPRS: “form a special task force to provide support in maneuvering COVID-19,” “provide infrastructure investment budgets to local governments,” “develop employee assistance programs that fit all types of working groups” and “diversify existing supply chain.” Large enterprises have two distinct critical GPRS: “provide help in digitalizing existing construction projects” and “mandate COVID-19 as force majeure.” Eighteen GPRS can be categorized into the following five constructs: “market stability and financial aid,” “enterprise capability management,” “supply chain improvement,” “law and policy resources” and “information and workforce management.” The former two constructs are more effective than other GPRS constructs. This is the first paper that evaluates the effectiveness of GPRS for AEC enterprises, providing new evidence to policymakers for well-informed decision-making in developing pandemic response strategies.Government pandemic response strategies for AEC enterprises: lessons from COVID-19
Salma Husna Zamani, Rahimi A. Rahman, Muhammad Ashraf Fauzi, Liyana Mohamed Yusof
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

Policymakers are developing government-level pandemic response strategies (GPRS) to assist architecture, engineering and construction (AEC) enterprises. However, the effectiveness of the GPRS has not been assessed. Therefore, this study aims to investigate the interrelationships between GPRS and AEC enterprises. To achieve that aim, the study objectives are to compare GPRS effectiveness between small-medium and large AEC enterprises, develop groupings to categorize interrelated GPRS and evaluate the effectiveness of the GPRS and interrelated constructs.

A systematic literature review and semi-structured interviews with 40 AEC industry professionals were carried out, generating 22 GPRS. Then, questionnaire survey data was collected among AEC professionals. In total, 114 valid survey answers were received and analyzed using the Kruskal–Wallis H test, normalized mean analysis, factor analysis and fuzzy synthetic evaluation.

Small-medium enterprises have four distinct critical GPRS: “form a special task force to provide support in maneuvering COVID-19,” “provide infrastructure investment budgets to local governments,” “develop employee assistance programs that fit all types of working groups” and “diversify existing supply chain.” Large enterprises have two distinct critical GPRS: “provide help in digitalizing existing construction projects” and “mandate COVID-19 as force majeure.” Eighteen GPRS can be categorized into the following five constructs: “market stability and financial aid,” “enterprise capability management,” “supply chain improvement,” “law and policy resources” and “information and workforce management.” The former two constructs are more effective than other GPRS constructs.

This is the first paper that evaluates the effectiveness of GPRS for AEC enterprises, providing new evidence to policymakers for well-informed decision-making in developing pandemic response strategies.

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Government pandemic response strategies for AEC enterprises: lessons from COVID-1910.1108/JEDT-10-2021-0540Journal of Engineering, Design and Technology2022-02-14© 2022 Emerald Publishing LimitedSalma Husna ZamaniRahimi A. RahmanMuhammad Ashraf FauziLiyana Mohamed YusofJournal of Engineering, Design and Technologyahead-of-printahead-of-print2022-02-1410.1108/JEDT-10-2021-0540https://www.emerald.com/insight/content/doi/10.1108/JEDT-10-2021-0540/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2022 Emerald Publishing Limited
Effect of traffic data set on various machine-learning algorithms when forecasting air qualityhttps://www.emerald.com/insight/content/doi/10.1108/JEDT-10-2021-0554/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestRoad traffic emissions are generally believed to contribute immensely to air pollution, but the effect of road traffic data sets on air quality (AQ) predictions has not been fully investigated. This paper aims to investigate the effects traffic data set have on the performance of machine learning (ML) predictive models in AQ prediction. To achieve this, the authors have set up an experiment with the control data set having only the AQ data set and meteorological (Met) data set, while the experimental data set is made up of the AQ data set, Met data set and traffic data set. Several ML models (such as extra trees regressor, eXtreme gradient boosting regressor, random forest regressor, K-neighbors regressor and two others) were trained, tested and compared on these individual combinations of data sets to predict the volume of PM2.5, PM10, NO2 and O3 in the atmosphere at various times of the day. The result obtained showed that various ML algorithms react differently to the traffic data set despite generally contributing to the performance improvement of all the ML algorithms considered in this study by at least 20% and an error reduction of at least 18.97%. This research is limited in terms of the study area, and the result cannot be generalized outside of the UK as some of the inherent conditions may not be similar elsewhere. Additionally, only the ML algorithms commonly used in literature are considered in this research, therefore, leaving out a few other ML algorithms. This study reinforces the belief that the traffic data set has a significant effect on improving the performance of air pollution ML prediction models. Hence, there is an indication that ML algorithms behave differently when trained with a form of traffic data set in the development of an AQ prediction model. This implies that developers and researchers in AQ prediction need to identify the ML algorithms that behave in their best interest before implementation. The result of this study will enable researchers to focus more on algorithms of benefit when using traffic data sets in AQ prediction.Effect of traffic data set on various machine-learning algorithms when forecasting air quality
Ismail Abiodun Sulaimon, Hafiz Alaka, Razak Olu-Ajayi, Mubashir Ahmad, Saheed Ajayi, Abdul Hye
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

Road traffic emissions are generally believed to contribute immensely to air pollution, but the effect of road traffic data sets on air quality (AQ) predictions has not been fully investigated. This paper aims to investigate the effects traffic data set have on the performance of machine learning (ML) predictive models in AQ prediction.

To achieve this, the authors have set up an experiment with the control data set having only the AQ data set and meteorological (Met) data set, while the experimental data set is made up of the AQ data set, Met data set and traffic data set. Several ML models (such as extra trees regressor, eXtreme gradient boosting regressor, random forest regressor, K-neighbors regressor and two others) were trained, tested and compared on these individual combinations of data sets to predict the volume of PM2.5, PM10, NO2 and O3 in the atmosphere at various times of the day.

The result obtained showed that various ML algorithms react differently to the traffic data set despite generally contributing to the performance improvement of all the ML algorithms considered in this study by at least 20% and an error reduction of at least 18.97%.

This research is limited in terms of the study area, and the result cannot be generalized outside of the UK as some of the inherent conditions may not be similar elsewhere. Additionally, only the ML algorithms commonly used in literature are considered in this research, therefore, leaving out a few other ML algorithms.

This study reinforces the belief that the traffic data set has a significant effect on improving the performance of air pollution ML prediction models. Hence, there is an indication that ML algorithms behave differently when trained with a form of traffic data set in the development of an AQ prediction model. This implies that developers and researchers in AQ prediction need to identify the ML algorithms that behave in their best interest before implementation.

The result of this study will enable researchers to focus more on algorithms of benefit when using traffic data sets in AQ prediction.

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Effect of traffic data set on various machine-learning algorithms when forecasting air quality10.1108/JEDT-10-2021-0554Journal of Engineering, Design and Technology2022-05-26© 2022 Emerald Publishing LimitedIsmail Abiodun SulaimonHafiz AlakaRazak Olu-AjayiMubashir AhmadSaheed AjayiAbdul HyeJournal of Engineering, Design and Technologyahead-of-printahead-of-print2022-05-2610.1108/JEDT-10-2021-0554https://www.emerald.com/insight/content/doi/10.1108/JEDT-10-2021-0554/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2022 Emerald Publishing Limited
Examining the potential use of augmented reality in construction cost management tools and techniqueshttps://www.emerald.com/insight/content/doi/10.1108/JEDT-10-2022-0512/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestConstruction cost management is one of the important processes that should be achieved effectively and accurately for successful project delivery. Modern-day construction cost management demands a high level of spatial skills. Augmented reality (AR) can potentially increase the stakeholders’ spatial skills as a supportive technology to traditional cost management tools and techniques. AR is a breakthrough technology that could considerably ease execution in various industries, but AR applicability in cost management has not been studied extensively. Thus, this study aims to explore the use of AR in construction cost management tools and techniques. Data were collected using a qualitative approach consisting of two rounds of the Delphi technique. A total of 22 experts in the construction and information technology fields were interviewed using a purposive sampling technique. The manual content analysis helped analyse data. The study identified AR features with the potential to increase the usage of cost management tools and techniques. AR can enable spatial skills (abilities, thinking and tasks) in most cost management tools and techniques. However, technical, cultural and technical and cultural barriers obstruct the use of AR in the construction industry. The usage of AR in construction cost management tools and techniques has not been examined in detail until now. Thus, the study was developed to meet the industry needs and fill the literature gap to investigate the potential use of AR in construction cost management tools and techniques.Examining the potential use of augmented reality in construction cost management tools and techniques
S.M.A.H. Senanayake, Pamal Akila Manamperi Gunawardana, B.A.K.S. Perera, Dilakshan Rajaratnam
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

Construction cost management is one of the important processes that should be achieved effectively and accurately for successful project delivery. Modern-day construction cost management demands a high level of spatial skills. Augmented reality (AR) can potentially increase the stakeholders’ spatial skills as a supportive technology to traditional cost management tools and techniques. AR is a breakthrough technology that could considerably ease execution in various industries, but AR applicability in cost management has not been studied extensively. Thus, this study aims to explore the use of AR in construction cost management tools and techniques.

Data were collected using a qualitative approach consisting of two rounds of the Delphi technique. A total of 22 experts in the construction and information technology fields were interviewed using a purposive sampling technique. The manual content analysis helped analyse data.

The study identified AR features with the potential to increase the usage of cost management tools and techniques. AR can enable spatial skills (abilities, thinking and tasks) in most cost management tools and techniques. However, technical, cultural and technical and cultural barriers obstruct the use of AR in the construction industry.

The usage of AR in construction cost management tools and techniques has not been examined in detail until now. Thus, the study was developed to meet the industry needs and fill the literature gap to investigate the potential use of AR in construction cost management tools and techniques.

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Examining the potential use of augmented reality in construction cost management tools and techniques10.1108/JEDT-10-2022-0512Journal of Engineering, Design and Technology2023-01-27© 2023 Emerald Publishing LimitedS.M.A.H. SenanayakePamal Akila Manamperi GunawardanaB.A.K.S. PereraDilakshan RajaratnamJournal of Engineering, Design and Technologyahead-of-printahead-of-print2023-01-2710.1108/JEDT-10-2022-0512https://www.emerald.com/insight/content/doi/10.1108/JEDT-10-2022-0512/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2023 Emerald Publishing Limited
A thematic analysis of the organisational influences on digitalisation in construction firmshttps://www.emerald.com/insight/content/doi/10.1108/JEDT-10-2022-0513/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestDue to the practical complexity and fragmented nature of the construction industry, digitalisation, like other innovations, is not easily achieved. This study aims to explore organisational influences on digitalisation within construction firms. The study uses structured open-ended questions as a data collection tool for a qualitative investigation. The qualitative approach enabled participants to express their inputs and maximise the diversity of data, offering new insights and discussions that are distinct from previous works. Construction professionals from 22 organisations provided their perspectives on digital transformation and their organisations. Under four constructs – structure, culture, leadership and internal processes, findings uncovered 16 determinants critical to digitalisation in construction firms. The study offers a theoretical perspective supported by empirical data to explore the complex dynamics and internal interactions of organisational influence on the uptake of digitalisation in the construction industry. This paper offers arguments from a theoretical lens by applying the organisational influence model and capturing the variables under each construct in an exploratory manner to highlight the reasoning behind the low digital uptake in construction firms. This research aids academia and practice on the pressure points responsible for enhancing, or undermining, digital uptake in construction firms at an organisational level.A thematic analysis of the organisational influences on digitalisation in construction firms
Sambo Lyson Zulu, Ali Saad, Saheed Ajayi, Maria Unuigbe, Mohammed Dulaimi
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

Due to the practical complexity and fragmented nature of the construction industry, digitalisation, like other innovations, is not easily achieved. This study aims to explore organisational influences on digitalisation within construction firms.

The study uses structured open-ended questions as a data collection tool for a qualitative investigation. The qualitative approach enabled participants to express their inputs and maximise the diversity of data, offering new insights and discussions that are distinct from previous works.

Construction professionals from 22 organisations provided their perspectives on digital transformation and their organisations. Under four constructs – structure, culture, leadership and internal processes, findings uncovered 16 determinants critical to digitalisation in construction firms. The study offers a theoretical perspective supported by empirical data to explore the complex dynamics and internal interactions of organisational influence on the uptake of digitalisation in the construction industry.

This paper offers arguments from a theoretical lens by applying the organisational influence model and capturing the variables under each construct in an exploratory manner to highlight the reasoning behind the low digital uptake in construction firms. This research aids academia and practice on the pressure points responsible for enhancing, or undermining, digital uptake in construction firms at an organisational level.

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A thematic analysis of the organisational influences on digitalisation in construction firms10.1108/JEDT-10-2022-0513Journal of Engineering, Design and Technology2023-03-16© 2023 Emerald Publishing LimitedSambo Lyson ZuluAli SaadSaheed AjayiMaria UnuigbeMohammed DulaimiJournal of Engineering, Design and Technologyahead-of-printahead-of-print2023-03-1610.1108/JEDT-10-2022-0513https://www.emerald.com/insight/content/doi/10.1108/JEDT-10-2022-0513/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2023 Emerald Publishing Limited
Technology and innovation development in Ethiopian construction industry: the challenges and improvement mechanismshttps://www.emerald.com/insight/content/doi/10.1108/JEDT-10-2022-0528/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestThe purpose of this study is to investigate the challenges and potential improvement mechanisms for the development of technology and innovation in the Ethiopian construction industry. In this study both quantitative and qualitative research approaches were adopted. While a structured questionnaire was used for the quantitative data collection, semi-structured interview was used for qualitative data collection. In analyzing the quantitative data, mean score was used to rank the variables and factor analysis was conducted to identify the underlying dimensions of the research constructs. The qualitative data was analyzed thematically focusing on specific objectives of the study; the challenges and improvement mechanisms of technology and innovation development. The findings indicate that the major challenges are nature of the industry and lack of awareness, weak capacity of companies and the regulatory instruments, inadequate tender duration and poor monitoring and controlling practice. The suggested improvement mechanisms are effective coordination of the process and awareness creation, promoting technology and innovation in the procurement process and technology and innovation consideration in construction project registration. Effectiveness of construction industry improvement programmes is affected by inappropriateness of the adopted implementation mechanisms. Understanding the operating environment; the enablers and potential barriers, is important for the success of any envisioned improvement programme. The improvement framework proposed by this study indicates the potential intervention areas and improvement mechanisms to effectively induce and enhance technology and innovation development in the construction industry. Major pillars of the improvement framework are improving regulatory framework, raising awareness and stakeholder engagement and continual monitoring and controlling of the practice.Technology and innovation development in Ethiopian construction industry: the challenges and improvement mechanisms
Desalegn Girma Mengistu, Daniel Alemayehu Ashene, Handebo Ayele Halabo
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

The purpose of this study is to investigate the challenges and potential improvement mechanisms for the development of technology and innovation in the Ethiopian construction industry.

In this study both quantitative and qualitative research approaches were adopted. While a structured questionnaire was used for the quantitative data collection, semi-structured interview was used for qualitative data collection. In analyzing the quantitative data, mean score was used to rank the variables and factor analysis was conducted to identify the underlying dimensions of the research constructs. The qualitative data was analyzed thematically focusing on specific objectives of the study; the challenges and improvement mechanisms of technology and innovation development.

The findings indicate that the major challenges are nature of the industry and lack of awareness, weak capacity of companies and the regulatory instruments, inadequate tender duration and poor monitoring and controlling practice. The suggested improvement mechanisms are effective coordination of the process and awareness creation, promoting technology and innovation in the procurement process and technology and innovation consideration in construction project registration.

Effectiveness of construction industry improvement programmes is affected by inappropriateness of the adopted implementation mechanisms. Understanding the operating environment; the enablers and potential barriers, is important for the success of any envisioned improvement programme. The improvement framework proposed by this study indicates the potential intervention areas and improvement mechanisms to effectively induce and enhance technology and innovation development in the construction industry. Major pillars of the improvement framework are improving regulatory framework, raising awareness and stakeholder engagement and continual monitoring and controlling of the practice.

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Technology and innovation development in Ethiopian construction industry: the challenges and improvement mechanisms10.1108/JEDT-10-2022-0528Journal of Engineering, Design and Technology2023-03-06© 2023 Emerald Publishing LimitedDesalegn Girma MengistuDaniel Alemayehu AsheneHandebo Ayele HalaboJournal of Engineering, Design and Technologyahead-of-printahead-of-print2023-03-0610.1108/JEDT-10-2022-0528https://www.emerald.com/insight/content/doi/10.1108/JEDT-10-2022-0528/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2023 Emerald Publishing Limited
Ascertaining adequacy of fire suppression systems: the perspective of Accra central of Ghanahttps://www.emerald.com/insight/content/doi/10.1108/JEDT-10-2022-0529/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestFire is the fundamental element of most people’s lives, and when not controlled, the same fire can lead to several catastrophes in homes, offices, schools, lives and other public places with severe repercussions. Hence, this study aims to examine the adequacy and extent of the application of fire suppression systems in residential and commercial property in Ghana. This study adopts a sequential mixed-mode design comprising quantitative and qualitative research strategies to analyse factors to produce findings. The target population for this study includes shop occupiers, end users of office buildings, and residents in the Accra Central of Ghana. Systematic random sampling was used for the quantitative research, and a sample size of 385 was obtained using a multi-stage and cluster sampling method. A structured survey and semi-structured interviews were used to collect the primary data. The quantitative data were analysed using descriptive and inferential statistics, whereas the qualitative data were analysed using content analysis. From an empirical literature review and the analysis, the three main factors contributing to fire breakouts are equipment malfunction, improper use of heat sources and human mistakes. According to the respondents, fire suppression systems were also inadequate, as most of the suppression systems prescribed in the building code were unavailable. Regarding the ability to manually operate fire suppression systems, most property occupiers stated that they are generally unaware of these suppression systems. This study will aid policymakers in developing interventions for fire safety enforcement by ensuring that fire safety regulations are consistently followed by design team members and property developers, resulting in a positive effect on public building structures performing their required functions. It is also critical to provide end users with education and training on how to operate the fire suppression system as well as effective handling of firefighting installations in the event of a fire. The findings of this investigation contribute to knowledge and comprehension of the effect of fire suppression systems on building users and may serve as a precursor to the development of a “As Built” certification system for ascertaining the adequacy of fire suppression systems for new and existing residential and commercial property.Ascertaining adequacy of fire suppression systems: the perspective of Accra central of Ghana
Mark Pim-Wusu, Eric Kwame Simpeh, Jeremiah N-Nanajeri Simberi
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

Fire is the fundamental element of most people’s lives, and when not controlled, the same fire can lead to several catastrophes in homes, offices, schools, lives and other public places with severe repercussions. Hence, this study aims to examine the adequacy and extent of the application of fire suppression systems in residential and commercial property in Ghana.

This study adopts a sequential mixed-mode design comprising quantitative and qualitative research strategies to analyse factors to produce findings. The target population for this study includes shop occupiers, end users of office buildings, and residents in the Accra Central of Ghana. Systematic random sampling was used for the quantitative research, and a sample size of 385 was obtained using a multi-stage and cluster sampling method. A structured survey and semi-structured interviews were used to collect the primary data. The quantitative data were analysed using descriptive and inferential statistics, whereas the qualitative data were analysed using content analysis.

From an empirical literature review and the analysis, the three main factors contributing to fire breakouts are equipment malfunction, improper use of heat sources and human mistakes. According to the respondents, fire suppression systems were also inadequate, as most of the suppression systems prescribed in the building code were unavailable. Regarding the ability to manually operate fire suppression systems, most property occupiers stated that they are generally unaware of these suppression systems.

This study will aid policymakers in developing interventions for fire safety enforcement by ensuring that fire safety regulations are consistently followed by design team members and property developers, resulting in a positive effect on public building structures performing their required functions. It is also critical to provide end users with education and training on how to operate the fire suppression system as well as effective handling of firefighting installations in the event of a fire.

The findings of this investigation contribute to knowledge and comprehension of the effect of fire suppression systems on building users and may serve as a precursor to the development of a “As Built” certification system for ascertaining the adequacy of fire suppression systems for new and existing residential and commercial property.

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Ascertaining adequacy of fire suppression systems: the perspective of Accra central of Ghana10.1108/JEDT-10-2022-0529Journal of Engineering, Design and Technology2023-11-30© 2023 Emerald Publishing LimitedMark Pim-WusuEric Kwame SimpehJeremiah N-Nanajeri SimberiJournal of Engineering, Design and Technologyahead-of-printahead-of-print2023-11-3010.1108/JEDT-10-2022-0529https://www.emerald.com/insight/content/doi/10.1108/JEDT-10-2022-0529/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2023 Emerald Publishing Limited
Integrated applications of building information modeling in project cost management: a systematic reviewhttps://www.emerald.com/insight/content/doi/10.1108/JEDT-10-2022-0538/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestImplementing building information modeling (BIM) in construction projects offers many benefits. However, the use of BIM in project cost management is still limited. This study aims to review the current trends in the application of BIM in project cost management. This study systematically reviews the literature on the application of BIM in project cost management. A total of 46 related articles were identified and analyzed using the Preferred Reporting Items for Systematic Reviews and Meta-Analyses method. Eighteen approaches to applying BIM in project cost management were identified. The approaches can be grouped into cost control and cost estimation. Also, BIM can be applied independently or integrated with other techniques. The integrated approaches for cost control include integration with genetic algorithms, Monte Carlo simulation, lean construction, integrated project delivery, neural network and value engineering. On the contrary, integrated approaches for cost estimation include integration with cost-plus pricing, discrepancy analysis, construction progress curves, estimation standards, algorithms, declarative mappings, life cycle sustainability assessment, ontology, Web-based frameworks and structured query language. To the best of the authors’ knowledge, this study is the first to systematically review prior literature on the application of BIM in project cost management. As a result, the study provides a comprehensive understanding of the current state of the art and fills the literature gap. Researchers and industry professionals can use the study findings to increase the benefits of implementing BIM in construction projects.Integrated applications of building information modeling in project cost management: a systematic review
Abdelrahman M. Farouk, Rahimi A. Rahman
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

Implementing building information modeling (BIM) in construction projects offers many benefits. However, the use of BIM in project cost management is still limited. This study aims to review the current trends in the application of BIM in project cost management.

This study systematically reviews the literature on the application of BIM in project cost management. A total of 46 related articles were identified and analyzed using the Preferred Reporting Items for Systematic Reviews and Meta-Analyses method.

Eighteen approaches to applying BIM in project cost management were identified. The approaches can be grouped into cost control and cost estimation. Also, BIM can be applied independently or integrated with other techniques. The integrated approaches for cost control include integration with genetic algorithms, Monte Carlo simulation, lean construction, integrated project delivery, neural network and value engineering. On the contrary, integrated approaches for cost estimation include integration with cost-plus pricing, discrepancy analysis, construction progress curves, estimation standards, algorithms, declarative mappings, life cycle sustainability assessment, ontology, Web-based frameworks and structured query language.

To the best of the authors’ knowledge, this study is the first to systematically review prior literature on the application of BIM in project cost management. As a result, the study provides a comprehensive understanding of the current state of the art and fills the literature gap. Researchers and industry professionals can use the study findings to increase the benefits of implementing BIM in construction projects.

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Integrated applications of building information modeling in project cost management: a systematic review10.1108/JEDT-10-2022-0538Journal of Engineering, Design and Technology2023-06-19© 2023 Emerald Publishing LimitedAbdelrahman M. FaroukRahimi A. RahmanJournal of Engineering, Design and Technologyahead-of-printahead-of-print2023-06-1910.1108/JEDT-10-2022-0538https://www.emerald.com/insight/content/doi/10.1108/JEDT-10-2022-0538/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2023 Emerald Publishing Limited
Mapping out focus for circular economy business models (CEBMs) research in construction sector studies – a bibliometric approachhttps://www.emerald.com/insight/content/doi/10.1108/JEDT-10-2023-0444/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestThe circular economy business models (CEBMs) provide ways for firms operating in the construction industry to move from a linear to a circular approach. Thus, this study aims to explore CEBM research within the construction sector to show the focus area of studies, highlighting new areas that require attention. This study adopted a bibliometric approach, using the Scopus database as the data source. The keywords used for paper extraction from the database were “circular economy business” OR “circular business” AND “model” OR “models” AND “construction industry” OR “building industry”. The VOSviewer software was then used to prepare a co-occurrence and co-authorship map based on the bibliographic data gathered. The study’s findings reveal five research clusters in the construction industry. These clusters include circular construction intelligence, modular business modelling, eco-construction, sustainable construction economics and smart energy-efficient buildings. The two most cited scholars had two publications each, while the top journals are the Journal of Cleaner Production and Sustainable Production and Consumption. This study concludes that there is a need for research within the construction sector to focus on CEBMs’ archetypes and frameworks. This will enable a smooth transition from linear to circular business models in the sector. The information was gathered from a single database, Scopus; hence, using other databases, including Web of Science, Google Scholar and Dimensions, might produce more articles for examination and, consequently, different findings on the subject under investigation. These findings would assist researchers in considering the areas mentioned, which are yet to receive attention, and, by extension, enhance economic development while maintaining environmental sustainability. This paper made a significant contribution to the body of knowledge by identifying scholars and platforms that have been instrumental in advancing CEBM research and highlighting new areas that require attention in the construction sector.Mapping out focus for circular economy business models (CEBMs) research in construction sector studies – a bibliometric approach
Osamudiamen Kenneth Otasowie, Clinton Ohis Aigbavboa, Ayodeji Emmanuel Oke, Peter Adekunle
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

The circular economy business models (CEBMs) provide ways for firms operating in the construction industry to move from a linear to a circular approach. Thus, this study aims to explore CEBM research within the construction sector to show the focus area of studies, highlighting new areas that require attention.

This study adopted a bibliometric approach, using the Scopus database as the data source. The keywords used for paper extraction from the database were “circular economy business” OR “circular business” AND “model” OR “models” AND “construction industry” OR “building industry”. The VOSviewer software was then used to prepare a co-occurrence and co-authorship map based on the bibliographic data gathered.

The study’s findings reveal five research clusters in the construction industry. These clusters include circular construction intelligence, modular business modelling, eco-construction, sustainable construction economics and smart energy-efficient buildings. The two most cited scholars had two publications each, while the top journals are the Journal of Cleaner Production and Sustainable Production and Consumption. This study concludes that there is a need for research within the construction sector to focus on CEBMs’ archetypes and frameworks. This will enable a smooth transition from linear to circular business models in the sector.

The information was gathered from a single database, Scopus; hence, using other databases, including Web of Science, Google Scholar and Dimensions, might produce more articles for examination and, consequently, different findings on the subject under investigation.

These findings would assist researchers in considering the areas mentioned, which are yet to receive attention, and, by extension, enhance economic development while maintaining environmental sustainability.

This paper made a significant contribution to the body of knowledge by identifying scholars and platforms that have been instrumental in advancing CEBM research and highlighting new areas that require attention in the construction sector.

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Mapping out focus for circular economy business models (CEBMs) research in construction sector studies – a bibliometric approach10.1108/JEDT-10-2023-0444Journal of Engineering, Design and Technology2024-03-21© 2024 Osamudiamen Kenneth Otasowie, Clinton Ohis Aigbavboa, Ayodeji Emmanuel Oke and Peter Adekunle.Osamudiamen Kenneth OtasowieClinton Ohis AigbavboaAyodeji Emmanuel OkePeter AdekunleJournal of Engineering, Design and Technologyahead-of-printahead-of-print2024-03-2110.1108/JEDT-10-2023-0444https://www.emerald.com/insight/content/doi/10.1108/JEDT-10-2023-0444/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2024 Osamudiamen Kenneth Otasowie, Clinton Ohis Aigbavboa, Ayodeji Emmanuel Oke and Peter Adekunle.http://creativecommons.org/licences/by/4.0/legalcode
Advanced cuttlefish optimizer-random decision forest (ACORDF) based design of fractional order PID controller for higher-order time-delay systemhttps://www.emerald.com/insight/content/doi/10.1108/JEDT-11-2020-0451/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestThe purpose of this manuscript, a state feedback gain depends on the optimal design of fractional order PID controller to time-delay system is established. In established optimal design known as advanced cuttlefish optimizer and random decision forest that is combined performance of random decision forest algorithm (RDFA) and advanced cuttlefish optimizer (ACFO). The proposed ACFO uses the concept of crossover and mutation operator depend on position upgrading to enhance its search behavior, calculational speed as well as convergence profile at basic cuttlefish optimizer. Fractional order proportional-integrator-derivative (FOPID) controller, apart from as tuning parameters (kp, ki and kd) it consists of two extra tuning parameters λ and µ. In established technology, the increase of FOPID controller is adjusted to reach needed responses that demonstrated using RDFA theory as well as RDF weight matrices is probable to the help of the ACFO method. The uniqueness of the established method is to decrease the failure of the FOPID controller at greater order time delay method with the help of controller maximize restrictions. The objective of the established method is selected to consider parameters set point as well as achieved parameters of time-delay system. In the established technique used to evade large order delays as well as reliability restrictions such as small excesses, time resolution, as well as fixed condition defect. These methods is implemented at MATLAB/Simulink platform as well as outcomes compared to various existing methods such as Ziegler-Nichols fit, curve fit, Wang method, regression and invasive weed optimization and linear-quadratic regression method.Advanced cuttlefish optimizer-random decision forest (ACORDF) based design of fractional order PID controller for higher-order time-delay system
Thomas George, V. Ganesan
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

The purpose of this manuscript, a state feedback gain depends on the optimal design of fractional order PID controller to time-delay system is established. In established optimal design known as advanced cuttlefish optimizer and random decision forest that is combined performance of random decision forest algorithm (RDFA) and advanced cuttlefish optimizer (ACFO).

The proposed ACFO uses the concept of crossover and mutation operator depend on position upgrading to enhance its search behavior, calculational speed as well as convergence profile at basic cuttlefish optimizer.

Fractional order proportional-integrator-derivative (FOPID) controller, apart from as tuning parameters (kp, ki and kd) it consists of two extra tuning parameters λ and µ. In established technology, the increase of FOPID controller is adjusted to reach needed responses that demonstrated using RDFA theory as well as RDF weight matrices is probable to the help of the ACFO method. The uniqueness of the established method is to decrease the failure of the FOPID controller at greater order time delay method with the help of controller maximize restrictions. The objective of the established method is selected to consider parameters set point as well as achieved parameters of time-delay system.

In the established technique used to evade large order delays as well as reliability restrictions such as small excesses, time resolution, as well as fixed condition defect. These methods is implemented at MATLAB/Simulink platform as well as outcomes compared to various existing methods such as Ziegler-Nichols fit, curve fit, Wang method, regression and invasive weed optimization and linear-quadratic regression method.

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Advanced cuttlefish optimizer-random decision forest (ACORDF) based design of fractional order PID controller for higher-order time-delay system10.1108/JEDT-11-2020-0451Journal of Engineering, Design and Technology2021-04-07© 2020 Emerald Publishing LimitedThomas GeorgeV. GanesanJournal of Engineering, Design and Technologyahead-of-printahead-of-print2021-04-0710.1108/JEDT-11-2020-0451https://www.emerald.com/insight/content/doi/10.1108/JEDT-11-2020-0451/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2020 Emerald Publishing Limited
Optimal block search mechanism using deep recurrent neural network for enabling the code-efficiency in HEVChttps://www.emerald.com/insight/content/doi/10.1108/JEDT-11-2020-0468/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestHigh-efficiency video coding (HEVC) is the latest video coding standard that has better coding efficiency than the H.264/advanced video coding (AVC) standard. The purpose of this paper is to design and develop an effective block search mechanism for the video compression-HEVC standard such that the developed compression standard is applied for the communication applications. In the proposed method, an rate-distortion (RD) trade-off, named regressive RD trade-off is used based on the conditional autoregressive value at risk (CaViar) model. The motion estimation (ME) is based on the new block search mechanism, which is developed with the modification in the Ordered Tree-based Hex-Octagon (OrTHO)-search algorithm along with the chronological Salp swarm algorithm (SSA) based on deep recurrent neural network (deepRNN) for optimally deciding the shape of search, search length of the tree and dimension. The chronological SSA is developed by integrating the chronological concept in SSA, which is used for training the deep RNN for ME. The competing methods used for the comparative analysis of the proposed OrTHO-search based RD + chronological-salp swarm algorithm (RD + C-SSA) based deep RNN are support vector machine (SVM), fast encoding framework, wavefront-based high parallel (WHP) and OrTHO-search based RD method. The proposed video compression method obtained a maximum peak signal-to-noise ratio (PSNR) of 42.9180 dB and a maximum structural similarity index measure (SSIM) of 0.9827. In this research, an effective block search mechanism was developed with the modification in the OrTHO-search algorithm along with the chronological SSA based on deepRNN for the video compression-HEVC standard.Optimal block search mechanism using deep recurrent neural network for enabling the code-efficiency in HEVC
Anilkumar Chandrashekhar Korishetti, Virendra S. Malemath
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

High-efficiency video coding (HEVC) is the latest video coding standard that has better coding efficiency than the H.264/advanced video coding (AVC) standard. The purpose of this paper is to design and develop an effective block search mechanism for the video compression-HEVC standard such that the developed compression standard is applied for the communication applications.

In the proposed method, an rate-distortion (RD) trade-off, named regressive RD trade-off is used based on the conditional autoregressive value at risk (CaViar) model. The motion estimation (ME) is based on the new block search mechanism, which is developed with the modification in the Ordered Tree-based Hex-Octagon (OrTHO)-search algorithm along with the chronological Salp swarm algorithm (SSA) based on deep recurrent neural network (deepRNN) for optimally deciding the shape of search, search length of the tree and dimension. The chronological SSA is developed by integrating the chronological concept in SSA, which is used for training the deep RNN for ME.

The competing methods used for the comparative analysis of the proposed OrTHO-search based RD + chronological-salp swarm algorithm (RD + C-SSA) based deep RNN are support vector machine (SVM), fast encoding framework, wavefront-based high parallel (WHP) and OrTHO-search based RD method. The proposed video compression method obtained a maximum peak signal-to-noise ratio (PSNR) of 42.9180 dB and a maximum structural similarity index measure (SSIM) of 0.9827.

In this research, an effective block search mechanism was developed with the modification in the OrTHO-search algorithm along with the chronological SSA based on deepRNN for the video compression-HEVC standard.

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Optimal block search mechanism using deep recurrent neural network for enabling the code-efficiency in HEVC10.1108/JEDT-11-2020-0468Journal of Engineering, Design and Technology2021-10-18© 2021 Emerald Publishing LimitedAnilkumar Chandrashekhar KorishettiVirendra S. MalemathJournal of Engineering, Design and Technologyahead-of-printahead-of-print2021-10-1810.1108/JEDT-11-2020-0468https://www.emerald.com/insight/content/doi/10.1108/JEDT-11-2020-0468/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2021 Emerald Publishing Limited
Design and study on the leveling mechanism of the tractor body in hilly and mountainous areashttps://www.emerald.com/insight/content/doi/10.1108/JEDT-11-2021-0617/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestThis study aims to improve the automatic leveling performance of tractor body in hilly and mountainous areas by designing a kind of controllable and adaptive leveling mechanism of tractor body. The mechanism is mainly composed of longitudinal slope leveling mechanism, transverse slope leveling mechanism and control components. According to the tractor body attitude in operation, the longitudinal slope leveling and lateral slope leveling can coordinate to realize the adaptive adjustment of tractor body. For this mechanism, the support mode of the linear three-point support and plane positioning combining is designed, and the leveling method of electromechanical combination is designed. The servo motor controls the longitudinal slope leveling mechanism through the reducer with self-locking function to realize the longitudinal leveling, and the servo driver controls the expansion and contraction of electric cylinder to realize lateral leveling. The designed mode can realize the relative independence and coordination of leveling in different directions. The performance test results of the leveling mechanism are shown: the mechanism can work normally; the leveling accuracy can reach within 1°; and the leveling accuracy and stability can meet the design requirements. The leveling accuracy and stability of longitudinal slope are higher than that of lateral slope, and the coordination leveling effect of longitudinal slope and lateral slope is better than that of the independent leveling. This study provides a technical reference for the design of leveling device of agricultural machines and tools in hilly and mountainous areas.Design and study on the leveling mechanism of the tractor body in hilly and mountainous areas
X.R. Lü, Z. Liu, X.L. Lü, X. Wang
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

This study aims to improve the automatic leveling performance of tractor body in hilly and mountainous areas by designing a kind of controllable and adaptive leveling mechanism of tractor body.

The mechanism is mainly composed of longitudinal slope leveling mechanism, transverse slope leveling mechanism and control components. According to the tractor body attitude in operation, the longitudinal slope leveling and lateral slope leveling can coordinate to realize the adaptive adjustment of tractor body. For this mechanism, the support mode of the linear three-point support and plane positioning combining is designed, and the leveling method of electromechanical combination is designed. The servo motor controls the longitudinal slope leveling mechanism through the reducer with self-locking function to realize the longitudinal leveling, and the servo driver controls the expansion and contraction of electric cylinder to realize lateral leveling. The designed mode can realize the relative independence and coordination of leveling in different directions.

The performance test results of the leveling mechanism are shown: the mechanism can work normally; the leveling accuracy can reach within 1°; and the leveling accuracy and stability can meet the design requirements. The leveling accuracy and stability of longitudinal slope are higher than that of lateral slope, and the coordination leveling effect of longitudinal slope and lateral slope is better than that of the independent leveling.

This study provides a technical reference for the design of leveling device of agricultural machines and tools in hilly and mountainous areas.

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Design and study on the leveling mechanism of the tractor body in hilly and mountainous areas10.1108/JEDT-11-2021-0617Journal of Engineering, Design and Technology2022-03-10© 2020 Emerald Publishing LimitedX.R. LüZ. LiuX.L. LüX. WangJournal of Engineering, Design and Technologyahead-of-printahead-of-print2022-03-1010.1108/JEDT-11-2021-0617https://www.emerald.com/insight/content/doi/10.1108/JEDT-11-2021-0617/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2020 Emerald Publishing Limited
Conceptual research methodology to investigate the relationship between fees and quality of professional service outputshttps://www.emerald.com/insight/content/doi/10.1108/JEDT-11-2021-0629/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestConstruction projects require a range of documents (e.g. drawings and specifications) prepared by built environment professionals. In recent years, there has been a perception amongst professionals that quality of documentation has declined. “Low” professional fees were cited as one of the reasons for poor quality documentation. However, most studies on the topic contained inappropriate methodologies. Therefore, the purpose of this paper was to develop a conceptual methodology to comprehensively examine the relationship between fees and professional service output quality. A systematic literature review (SLR) was conducted to evaluate the limitations of previous methodologies and identify variables in the relationship between fees and quality of professional service outputs. Findings from the SLR were used to develop a conceptual methodology to investigate the relationship between fees and quality of professional service outputs. Based on a frequency analysis of factors in the construction literature, the three main variables influencing professional service output quality were fees, coordination and amount of time available for project tasks. The SLR and shortcomings in previous studies informed the development of a conceptual methodology to examine the relationship between fees and professional service output quality. The conceptual methodology will assist in comprehensively investigating the effect of fees on the quality of professional service outputs. This is particularly relevant in countries where clients procure built environment professional services based on the lowest fee tendered but are concerned about quality. The methodology can establish how and to what extent “low” fees impact on professional service output quality. Industry professionals can also use variables identified in this paper to mitigate quality-related risks when producing professional service outputs. This paper adds to the body of knowledge by identifying variables in the relationship between fees and professional service output quality. The identified variables can be monitored and controlled by researchers during future investigations. Additionally, a conceptual methodology was proposed to assist researchers to determine the effect of fees on professional service output quality. The flexibility of the conceptual methodology enables it to comprehensively investigate other key variables (apart from fees) impacting on professional service output quality.Conceptual research methodology to investigate the relationship between fees and quality of professional service outputs
Neil Govender, Samuel Laryea, Ron Watermeyer
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

Construction projects require a range of documents (e.g. drawings and specifications) prepared by built environment professionals. In recent years, there has been a perception amongst professionals that quality of documentation has declined. “Low” professional fees were cited as one of the reasons for poor quality documentation. However, most studies on the topic contained inappropriate methodologies. Therefore, the purpose of this paper was to develop a conceptual methodology to comprehensively examine the relationship between fees and professional service output quality.

A systematic literature review (SLR) was conducted to evaluate the limitations of previous methodologies and identify variables in the relationship between fees and quality of professional service outputs. Findings from the SLR were used to develop a conceptual methodology to investigate the relationship between fees and quality of professional service outputs.

Based on a frequency analysis of factors in the construction literature, the three main variables influencing professional service output quality were fees, coordination and amount of time available for project tasks. The SLR and shortcomings in previous studies informed the development of a conceptual methodology to examine the relationship between fees and professional service output quality.

The conceptual methodology will assist in comprehensively investigating the effect of fees on the quality of professional service outputs. This is particularly relevant in countries where clients procure built environment professional services based on the lowest fee tendered but are concerned about quality. The methodology can establish how and to what extent “low” fees impact on professional service output quality. Industry professionals can also use variables identified in this paper to mitigate quality-related risks when producing professional service outputs.

This paper adds to the body of knowledge by identifying variables in the relationship between fees and professional service output quality. The identified variables can be monitored and controlled by researchers during future investigations. Additionally, a conceptual methodology was proposed to assist researchers to determine the effect of fees on professional service output quality. The flexibility of the conceptual methodology enables it to comprehensively investigate other key variables (apart from fees) impacting on professional service output quality.

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Conceptual research methodology to investigate the relationship between fees and quality of professional service outputs10.1108/JEDT-11-2021-0629Journal of Engineering, Design and Technology2022-10-13© 2022 Emerald Publishing LimitedNeil GovenderSamuel LaryeaRon WatermeyerJournal of Engineering, Design and Technologyahead-of-printahead-of-print2022-10-1310.1108/JEDT-11-2021-0629https://www.emerald.com/insight/content/doi/10.1108/JEDT-11-2021-0629/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2022 Emerald Publishing Limited
Reasons for entering into Ghanaian public-private partnership (PPP) power projectshttps://www.emerald.com/insight/content/doi/10.1108/JEDT-11-2021-0631/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestIn comparison to other countries, power generation in Sub-Saharan Africa is poor. The demand for power has surged in recent times and continues to increase at a fast rate. The public–private partnership (PPP) model has been identified as an option to address the challenges in the power sector. The purpose of this research paper is to critically explore the reasons for entering into PPP power projects in Ghana by the public and private parties. Questionnaires were used to elicit responses from respondents using a two-round Delphi survey. From 60 respondents contacted in round one, 48 responses were obtained, and these 48 respondents further took part in round two. Mean score ranking was used to rank the reasons for entering into PPP power projects, while analysis of variance (ANOVA) was run to test significant difference in perceptions among the respondents. From round 2 of the Delphi survey, the significant reasons for public sector entering into PPP power projects were as follows: achieving improved value for money, access to additional capital, increased certainty of projects and greater efficiency of project delivery services. For private sector, most significant reasons were as follows: obtaining of investment support, improvement in private sector’s international image and synergy with public sector. From ANOVA analysis, there were significant different perceptions among some of factors on the respondent profile variables and the reasons for entering into PPP power projects, while other factors did not have significant different perception. Significant reasons for both public and private sectors identified would be incorporated by the government when PPP policy guidelines and laws are reviewed. This will aid in the effective implementation of PPP for power projects.Reasons for entering into Ghanaian public-private partnership (PPP) power projects
Augustine Senanu Komla Kukah, De-Graft Owusu-Manu, Edward Badu, David John Edwards
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

In comparison to other countries, power generation in Sub-Saharan Africa is poor. The demand for power has surged in recent times and continues to increase at a fast rate. The public–private partnership (PPP) model has been identified as an option to address the challenges in the power sector. The purpose of this research paper is to critically explore the reasons for entering into PPP power projects in Ghana by the public and private parties.

Questionnaires were used to elicit responses from respondents using a two-round Delphi survey. From 60 respondents contacted in round one, 48 responses were obtained, and these 48 respondents further took part in round two. Mean score ranking was used to rank the reasons for entering into PPP power projects, while analysis of variance (ANOVA) was run to test significant difference in perceptions among the respondents.

From round 2 of the Delphi survey, the significant reasons for public sector entering into PPP power projects were as follows: achieving improved value for money, access to additional capital, increased certainty of projects and greater efficiency of project delivery services. For private sector, most significant reasons were as follows: obtaining of investment support, improvement in private sector’s international image and synergy with public sector. From ANOVA analysis, there were significant different perceptions among some of factors on the respondent profile variables and the reasons for entering into PPP power projects, while other factors did not have significant different perception.

Significant reasons for both public and private sectors identified would be incorporated by the government when PPP policy guidelines and laws are reviewed. This will aid in the effective implementation of PPP for power projects.

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Reasons for entering into Ghanaian public-private partnership (PPP) power projects10.1108/JEDT-11-2021-0631Journal of Engineering, Design and Technology2022-03-08© 2022 Emerald Publishing LimitedAugustine Senanu Komla KukahDe-Graft Owusu-ManuEdward BaduDavid John EdwardsJournal of Engineering, Design and Technologyahead-of-printahead-of-print2022-03-0810.1108/JEDT-11-2021-0631https://www.emerald.com/insight/content/doi/10.1108/JEDT-11-2021-0631/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2022 Emerald Publishing Limited
Analysing the effect of multicultural workforce/teams on construction productivityhttps://www.emerald.com/insight/content/doi/10.1108/JEDT-11-2021-0636/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestProdigious teamwork is the basis for augmenting the level of productivity on construction projects. Globalisation of the construction market has meant that many practitioners work outside of their geographical spectrum; however, the multicultural dissimilarities of construction workforces within the project management team (and how these may impact upon project productivity performance) have been given scant academic attention. To bridge this knowledge gap, this paper aims to analyse the effects of a multicultural workforce on construction productivity. The epistemological positioning of the research adopted mixed philosophies (consisting of both interpretivism and postpositivism) to undertake a deductive and cross-sectional survey to collate primary quantitative data collected via a closed-ended structured questionnaire. Census sampling and convenience sampling techniques were adopted to target Ghana’s construction workforce and their opinions of the phenomenon under investigation. Out of 96 questionnaires administered, 61 were retrieved. The data obtained were analysed by using mean score ranking, relative important index, one sample t-test and multiple regression. The reliability of the scale was checked by using Cronbach’s alpha coefficient. From the t-test analysis, 11 variables sourced from extant literature, and the null hypothesis for the study was not rejected and all factors (except high cost of training and improper gender diversity management) were affirmed as negative effects of the multicultural workforce on construction productivity. Using multiple regression analysis, six of the independent variables were shown to impact upon productivity. The goodness of fit was verified by collinearity and residual analysis. The model’s validation revealed a relatively high predictive accuracy (R2 = 0. 589), implying that the results could be generalized. In culmination, these findings suggest that the predictors can be used to accurately predict the effects of multicultural workforce on construction productivity performance. The findings indicate that multicultural workforce/teams have a substantial effect on overall construction productivity in the construction sector; consequently, stakeholders must address this issue to enhance productivity across the sector. The current study significantly contributes to our understanding of how multicultural workers/teams affect construction productivity in the construction business perspective and how to respond to the negative menace.Analysing the effect of multicultural workforce/teams on construction productivity
Ewald Kuoribo, Peter Amoah, Ernest Kissi, David John Edwards, Jacob Anim Gyampo, Wellington Didibhuku Thwala
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

Prodigious teamwork is the basis for augmenting the level of productivity on construction projects. Globalisation of the construction market has meant that many practitioners work outside of their geographical spectrum; however, the multicultural dissimilarities of construction workforces within the project management team (and how these may impact upon project productivity performance) have been given scant academic attention. To bridge this knowledge gap, this paper aims to analyse the effects of a multicultural workforce on construction productivity.

The epistemological positioning of the research adopted mixed philosophies (consisting of both interpretivism and postpositivism) to undertake a deductive and cross-sectional survey to collate primary quantitative data collected via a closed-ended structured questionnaire. Census sampling and convenience sampling techniques were adopted to target Ghana’s construction workforce and their opinions of the phenomenon under investigation. Out of 96 questionnaires administered, 61 were retrieved. The data obtained were analysed by using mean score ranking, relative important index, one sample t-test and multiple regression. The reliability of the scale was checked by using Cronbach’s alpha coefficient.

From the t-test analysis, 11 variables sourced from extant literature, and the null hypothesis for the study was not rejected and all factors (except high cost of training and improper gender diversity management) were affirmed as negative effects of the multicultural workforce on construction productivity. Using multiple regression analysis, six of the independent variables were shown to impact upon productivity. The goodness of fit was verified by collinearity and residual analysis. The model’s validation revealed a relatively high predictive accuracy (R2 = 0. 589), implying that the results could be generalized. In culmination, these findings suggest that the predictors can be used to accurately predict the effects of multicultural workforce on construction productivity performance.

The findings indicate that multicultural workforce/teams have a substantial effect on overall construction productivity in the construction sector; consequently, stakeholders must address this issue to enhance productivity across the sector.

The current study significantly contributes to our understanding of how multicultural workers/teams affect construction productivity in the construction business perspective and how to respond to the negative menace.

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Analysing the effect of multicultural workforce/teams on construction productivity10.1108/JEDT-11-2021-0636Journal of Engineering, Design and Technology2022-04-27© 2022 Emerald Publishing LimitedEwald KuoriboPeter AmoahErnest KissiDavid John EdwardsJacob Anim GyampoWellington Didibhuku ThwalaJournal of Engineering, Design and Technologyahead-of-printahead-of-print2022-04-2710.1108/JEDT-11-2021-0636https://www.emerald.com/insight/content/doi/10.1108/JEDT-11-2021-0636/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2022 Emerald Publishing Limited
Sustainable construction in the Nigerian construction industry: unsustainable practices, barriers and strategieshttps://www.emerald.com/insight/content/doi/10.1108/JEDT-11-2021-0639/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestSustainable construction practices are strongly correlated with a profitable and competitive construction industry, improved client satisfaction and efficient use of resources. However, due consideration is not being given to sustainable construction practices in Nigeria. Therefore, this study aims to identify the unsustainable construction practices on construction sites, the barriers to sustainable construction and possible strategies to improve sustainable construction in Nigeria. A questionnaire survey of 50 construction sites was conducted with construction professionals on the sites as the specific target, out of which only 43 construction sites have at least a construction professional present at the site. Forty-three filled questionnaires from the respondents were used for descriptive (mean score, standard deviation and charts) and inferential analysis (t-test and Kruskal–Wallis) in this study. The study shows that a large percentage (75%) of construction professionals in Nigeria are aware of sustainable construction. The descriptive and inferential analysis showed a disparity in the ranking of the 12 unsustainable practices, 14 barriers and 11 strategies among the respondents. Five unsustainable practices (“negative externalities”, “excess energy”, “unsustainable technologies”, “non-management of health and safety of workers” and “material waste”), six barriers to sustainable construction (“absence of historical data and exemplary projects on which construction professionals can build and learn from”, “lack of professional to handle the task”, “poverty and low urban investment”, “lack of urban and construction policy”, “lack of awareness” and “lack of technical know-how”) and three strategies to improve sustainable construction practices in Nigeria (“cooperation, partnership and participation”, “protection of biodiversity and conservation of natural resources” and “sustainability assessment system”) were found to be significant. The study offers significant insights into the construction industry unsustainable practices, barriers to sustainable construction, as well as strategies for improving sustainable construction practices. These insights can be applied to other developing countries with an emphasis on geographical differences. To the best of the authors’ knowledge, this is one of the recent studies in Nigeria that explored the context of sustainable construction in the construction industry by providing insights into the unsustainable construction practices, barriers and strategies to improve sustainable construction in Nigeria.Sustainable construction in the Nigerian construction industry: unsustainable practices, barriers and strategies
Emmanuel Dele Omopariola, Oludolapo Ibrahim Olanrewaju, Idowu Albert, Ayodeji Emmanuel Oke, Sunday Bankayode Ibiyemi
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

Sustainable construction practices are strongly correlated with a profitable and competitive construction industry, improved client satisfaction and efficient use of resources. However, due consideration is not being given to sustainable construction practices in Nigeria. Therefore, this study aims to identify the unsustainable construction practices on construction sites, the barriers to sustainable construction and possible strategies to improve sustainable construction in Nigeria.

A questionnaire survey of 50 construction sites was conducted with construction professionals on the sites as the specific target, out of which only 43 construction sites have at least a construction professional present at the site. Forty-three filled questionnaires from the respondents were used for descriptive (mean score, standard deviation and charts) and inferential analysis (t-test and Kruskal–Wallis) in this study.

The study shows that a large percentage (75%) of construction professionals in Nigeria are aware of sustainable construction. The descriptive and inferential analysis showed a disparity in the ranking of the 12 unsustainable practices, 14 barriers and 11 strategies among the respondents. Five unsustainable practices (“negative externalities”, “excess energy”, “unsustainable technologies”, “non-management of health and safety of workers” and “material waste”), six barriers to sustainable construction (“absence of historical data and exemplary projects on which construction professionals can build and learn from”, “lack of professional to handle the task”, “poverty and low urban investment”, “lack of urban and construction policy”, “lack of awareness” and “lack of technical know-how”) and three strategies to improve sustainable construction practices in Nigeria (“cooperation, partnership and participation”, “protection of biodiversity and conservation of natural resources” and “sustainability assessment system”) were found to be significant.

The study offers significant insights into the construction industry unsustainable practices, barriers to sustainable construction, as well as strategies for improving sustainable construction practices. These insights can be applied to other developing countries with an emphasis on geographical differences.

To the best of the authors’ knowledge, this is one of the recent studies in Nigeria that explored the context of sustainable construction in the construction industry by providing insights into the unsustainable construction practices, barriers and strategies to improve sustainable construction in Nigeria.

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Sustainable construction in the Nigerian construction industry: unsustainable practices, barriers and strategies10.1108/JEDT-11-2021-0639Journal of Engineering, Design and Technology2022-05-26© 2020 Emerald Publishing LimitedEmmanuel Dele OmopariolaOludolapo Ibrahim OlanrewajuIdowu AlbertAyodeji Emmanuel OkeSunday Bankayode IbiyemiJournal of Engineering, Design and Technologyahead-of-printahead-of-print2022-05-2610.1108/JEDT-11-2021-0639https://www.emerald.com/insight/content/doi/10.1108/JEDT-11-2021-0639/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2020 Emerald Publishing Limited
Development of comprehensive energy usage impact and carbon footprint parameters for green building life cycle assessmenthttps://www.emerald.com/insight/content/doi/10.1108/JEDT-11-2021-0655/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestThe purpose of this study is to develop a set of parameters universally acceptable for assessing design and construction strategies for reducing operational energy usage and its associated greenhouse gas (GHG) emission. Also, the parameters are intended to estimate the quantity of energy and its associated GHG emission reduction over the assessment period. This study used five steps framework comprising definition of purpose, selecting the candidate parameters, criteria selection and description, selecting proposed parameters and defining the proposed parameters. The criteria used were the parameter’s prevalence, measurability, preference and feasibility toward adaptability to the relevant stakeholders. This study consolidated 11 parameters. Seven cover designs and construction strategies comprising energy monitoring, natural lighting and ventilation design. Others are building thermal performance, efficient equipments, renewable energy and energy policy. The remaining four consider operational energy consumption, GHG emission quantification and their reduction over time. Providing suitable indicators for assessing direct and indirect GHG emission with easily accessible data is essential for assessing built environment. The consolidated parameters can be used in developing rating systems, monitoring GHG inventories and activities of building related industries. This study was conducted at the CEIES UTHM and used 11 existing rating systems open for research purposes, International Panel for Climate Change reports and GHG protocol report and guides and several other standards.Development of comprehensive energy usage impact and carbon footprint parameters for green building life cycle assessment
Abdullahi Mohammed Usman, Kamil Abdullah
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

The purpose of this study is to develop a set of parameters universally acceptable for assessing design and construction strategies for reducing operational energy usage and its associated greenhouse gas (GHG) emission. Also, the parameters are intended to estimate the quantity of energy and its associated GHG emission reduction over the assessment period.

This study used five steps framework comprising definition of purpose, selecting the candidate parameters, criteria selection and description, selecting proposed parameters and defining the proposed parameters. The criteria used were the parameter’s prevalence, measurability, preference and feasibility toward adaptability to the relevant stakeholders.

This study consolidated 11 parameters. Seven cover designs and construction strategies comprising energy monitoring, natural lighting and ventilation design. Others are building thermal performance, efficient equipments, renewable energy and energy policy. The remaining four consider operational energy consumption, GHG emission quantification and their reduction over time.

Providing suitable indicators for assessing direct and indirect GHG emission with easily accessible data is essential for assessing built environment. The consolidated parameters can be used in developing rating systems, monitoring GHG inventories and activities of building related industries.

This study was conducted at the CEIES UTHM and used 11 existing rating systems open for research purposes, International Panel for Climate Change reports and GHG protocol report and guides and several other standards.

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Development of comprehensive energy usage impact and carbon footprint parameters for green building life cycle assessment10.1108/JEDT-11-2021-0655Journal of Engineering, Design and Technology2022-06-06© 2022 Emerald Publishing LimitedAbdullahi Mohammed UsmanKamil AbdullahJournal of Engineering, Design and Technologyahead-of-printahead-of-print2022-06-0610.1108/JEDT-11-2021-0655https://www.emerald.com/insight/content/doi/10.1108/JEDT-11-2021-0655/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2022 Emerald Publishing Limited
Performance assessment of various seismic resistant systems for a multistory structure in different seismic zones of Bangladeshhttps://www.emerald.com/insight/content/doi/10.1108/JEDT-11-2021-0656/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestThis study aims to present the variations of optimal seismic control of reinforced cement concrete (RCC) structure using different structural systems. Different third-dimensional mathematical models are used to examine the responses of multistory flexibly connected frames subjected to earthquake excitations. This paper examined a G + 50 multi-storied high-rise structure, which is analyzed using different combinations of moment resistant frames, shear walls, seismic outrigger systems and seismic dampers to observe the effectiveness during ground motion against soft soil conditions. The damping coefficients of added dampers, providing both upper and lower levels are taken into consideration. A finite element modeling and analysis is generated. Then the nature of the structure exposed to ground motion is captured with response spectrum analysis, using BNBC-2020 for four different seismic zones in Bangladesh. The response of the structure is investigated according to the amplitude of the displacements, drifts, base shear, stiffness and torsion. The numerical results indicate that adding dampers at the base level can be the most effective against seismic control. However, placing an outrigger bracing system at the middle and top end with shear wall can be the most effective for controlling displacements and drifts. The response of high-rise structures to seismic forces in Bangladesh’s soft soil conditions is examined at various levels in this study. This study is an original research which contributes to the knowledge to build earthquake resisting high-rises in Bangladesh.Performance assessment of various seismic resistant systems for a multistory structure in different seismic zones of Bangladesh
Md. Habibur Rahman Sobuz, Md. Montaseer Meraz, Ayan Saha, Abu Sayed Mohammad Akid, Noor Md. Sadiqul Hasan, Mizanoor Rahman, Md. Abu Safayet
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

This study aims to present the variations of optimal seismic control of reinforced cement concrete (RCC) structure using different structural systems. Different third-dimensional mathematical models are used to examine the responses of multistory flexibly connected frames subjected to earthquake excitations.

This paper examined a G + 50 multi-storied high-rise structure, which is analyzed using different combinations of moment resistant frames, shear walls, seismic outrigger systems and seismic dampers to observe the effectiveness during ground motion against soft soil conditions. The damping coefficients of added dampers, providing both upper and lower levels are taken into consideration. A finite element modeling and analysis is generated. Then the nature of the structure exposed to ground motion is captured with response spectrum analysis, using BNBC-2020 for four different seismic zones in Bangladesh.

The response of the structure is investigated according to the amplitude of the displacements, drifts, base shear, stiffness and torsion. The numerical results indicate that adding dampers at the base level can be the most effective against seismic control. However, placing an outrigger bracing system at the middle and top end with shear wall can be the most effective for controlling displacements and drifts.

The response of high-rise structures to seismic forces in Bangladesh’s soft soil conditions is examined at various levels in this study. This study is an original research which contributes to the knowledge to build earthquake resisting high-rises in Bangladesh.

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Performance assessment of various seismic resistant systems for a multistory structure in different seismic zones of Bangladesh10.1108/JEDT-11-2021-0656Journal of Engineering, Design and Technology2022-02-17© 2022 Emerald Publishing LimitedMd. Habibur Rahman SobuzMd. Montaseer MerazAyan SahaAbu Sayed Mohammad AkidNoor Md. Sadiqul HasanMizanoor RahmanMd. Abu SafayetJournal of Engineering, Design and Technologyahead-of-printahead-of-print2022-02-1710.1108/JEDT-11-2021-0656https://www.emerald.com/insight/content/doi/10.1108/JEDT-11-2021-0656/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2022 Emerald Publishing Limited
Project cost performance factors in the war-affected and conflict-sensitive Afghan construction industryhttps://www.emerald.com/insight/content/doi/10.1108/JEDT-11-2021-0657/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestThe Afghan construction industry faces resource shortages and heavily relies on foreign aid to fund public projects on the path to recovery and reconstruction. While the resource constraints demand cost-efficient delivery of construction projects, many Afghan public projects experience delays and cost overruns. This study aims to evaluate various attributes and factors influencing cost performance in public construction projects in Afghanistan. The literature review and Delphi method identified 30 cost performance attributes relevant to the context of Afghanistan. Next, a questionnaire survey was conducted with construction management professionals working in the public sector in the Afghan construction industry to evaluate these attributes. This study found that the lack of resources, poor project management skills and corruption in procurement are the leading causes behind cost overruns in Afghan public projects. This study also identified five latent factors influencing cost performance in public projects in Afghanistan: competency of the project team, socioeconomic and political support, governance and public procurement, planning and risk management and project characteristics. The exploratory factor analysis did not reveal the relative significance of different cost performance success factors. Moreover, the ranking of cost performance attributes is based on the responses from the public sector construction professionals only. The construction industry in Afghanistan significantly contributes to the country’s social and economic growth and employment. This study’s findings will help researchers, project sponsors, government departments and industry practitioners interested in improving the cost performance in Afghan public projects. Given the scarcity of research in war-affected and conflict-sensitive regions, this study fills a research gap on project cost performance by providing insights into the cost performance success factors in public projects in Afghanistan.Project cost performance factors in the war-affected and conflict-sensitive Afghan construction industry
Ahmad Shah Kakar, Abid Hasan, Kumar Neeraj Jha, Amarjit Singh
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

The Afghan construction industry faces resource shortages and heavily relies on foreign aid to fund public projects on the path to recovery and reconstruction. While the resource constraints demand cost-efficient delivery of construction projects, many Afghan public projects experience delays and cost overruns. This study aims to evaluate various attributes and factors influencing cost performance in public construction projects in Afghanistan.

The literature review and Delphi method identified 30 cost performance attributes relevant to the context of Afghanistan. Next, a questionnaire survey was conducted with construction management professionals working in the public sector in the Afghan construction industry to evaluate these attributes.

This study found that the lack of resources, poor project management skills and corruption in procurement are the leading causes behind cost overruns in Afghan public projects. This study also identified five latent factors influencing cost performance in public projects in Afghanistan: competency of the project team, socioeconomic and political support, governance and public procurement, planning and risk management and project characteristics.

The exploratory factor analysis did not reveal the relative significance of different cost performance success factors. Moreover, the ranking of cost performance attributes is based on the responses from the public sector construction professionals only.

The construction industry in Afghanistan significantly contributes to the country’s social and economic growth and employment. This study’s findings will help researchers, project sponsors, government departments and industry practitioners interested in improving the cost performance in Afghan public projects.

Given the scarcity of research in war-affected and conflict-sensitive regions, this study fills a research gap on project cost performance by providing insights into the cost performance success factors in public projects in Afghanistan.

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Project cost performance factors in the war-affected and conflict-sensitive Afghan construction industry10.1108/JEDT-11-2021-0657Journal of Engineering, Design and Technology2022-11-08© 2022 Emerald Publishing LimitedAhmad Shah KakarAbid HasanKumar Neeraj JhaAmarjit SinghJournal of Engineering, Design and Technologyahead-of-printahead-of-print2022-11-0810.1108/JEDT-11-2021-0657https://www.emerald.com/insight/content/doi/10.1108/JEDT-11-2021-0657/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2022 Emerald Publishing Limited
Occupational health and safety orientation in the oil and gas industry of Ghana: analysis of knowledge and attitudinal influences on compliancehttps://www.emerald.com/insight/content/doi/10.1108/JEDT-11-2021-0664/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestOccupational safety issues among employees remains a contemporary and omnipresent concern. In developing countries, safety-related problems are amplified, resulting in higher incidences of serious accidents and occupational diseases. This study aims to evaluate employees’ knowledge and attitudes toward occupational health and safety, and how these influence overall occupational health and safety compliance. Ghana’s oil and gas industry provides the contextual backdrop for this research, given it is characterized by high rates of injury. A positivist and deductive research strategy was used to quantitatively analyze both primary and secondary data sources. A structured survey was administered to industry employees, and multiple linear regression was used to establish the effects of employee’s knowledge and attitude toward occupational health hazards on overall health and safety compliance. The findings indicate that most employees had both a high level of knowledge and positive attitude toward mitigating occupational health hazards. Moreover, the study reveals that most employees complied with occupational health safety practices. However, the study also reveals that the effect of employees’ knowledge and attitude toward occupational health hazards does not translate into deployment of comprehensive safety practices. Interestingly, female employees were found to be more knowledgeable and compliant with occupational health and safety practices than their male counterparts. Premised upon the findings, the study recommends: implementation of relevant education and training programs encompassing the proper usage of machinery and equipment, tailored hazard safety training appropriate to specific employee job requirements, effective dissemination of risk information and governance initiatives that enforce strict adherence to correct safety procedures. The study uniquely examines the influence of employee’s knowledge of health and safety to overall compliance within the oil and gas industry. Cumulatively, the study’s findings and recommendations contribute to improving the occupational health and safety outcomes within the industry.Occupational health and safety orientation in the oil and gas industry of Ghana: analysis of knowledge and attitudinal influences on compliance
Rhoda Ansah Quaigrain, De-Graft Owusu-Manu, David John Edwards, Mavis Hammond, Mabel Hammond, Igor Martek
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

Occupational safety issues among employees remains a contemporary and omnipresent concern. In developing countries, safety-related problems are amplified, resulting in higher incidences of serious accidents and occupational diseases. This study aims to evaluate employees’ knowledge and attitudes toward occupational health and safety, and how these influence overall occupational health and safety compliance. Ghana’s oil and gas industry provides the contextual backdrop for this research, given it is characterized by high rates of injury.

A positivist and deductive research strategy was used to quantitatively analyze both primary and secondary data sources. A structured survey was administered to industry employees, and multiple linear regression was used to establish the effects of employee’s knowledge and attitude toward occupational health hazards on overall health and safety compliance.

The findings indicate that most employees had both a high level of knowledge and positive attitude toward mitigating occupational health hazards. Moreover, the study reveals that most employees complied with occupational health safety practices. However, the study also reveals that the effect of employees’ knowledge and attitude toward occupational health hazards does not translate into deployment of comprehensive safety practices. Interestingly, female employees were found to be more knowledgeable and compliant with occupational health and safety practices than their male counterparts.

Premised upon the findings, the study recommends: implementation of relevant education and training programs encompassing the proper usage of machinery and equipment, tailored hazard safety training appropriate to specific employee job requirements, effective dissemination of risk information and governance initiatives that enforce strict adherence to correct safety procedures.

The study uniquely examines the influence of employee’s knowledge of health and safety to overall compliance within the oil and gas industry. Cumulatively, the study’s findings and recommendations contribute to improving the occupational health and safety outcomes within the industry.

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Occupational health and safety orientation in the oil and gas industry of Ghana: analysis of knowledge and attitudinal influences on compliance10.1108/JEDT-11-2021-0664Journal of Engineering, Design and Technology2022-03-01© 2020 Emerald Publishing LimitedRhoda Ansah QuaigrainDe-Graft Owusu-ManuDavid John EdwardsMavis HammondMabel HammondIgor MartekJournal of Engineering, Design and Technologyahead-of-printahead-of-print2022-03-0110.1108/JEDT-11-2021-0664https://www.emerald.com/insight/content/doi/10.1108/JEDT-11-2021-0664/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2020 Emerald Publishing Limited
Implementation of design for construction safety (DfS) in the Vietnam context: awareness, attitude and practiceshttps://www.emerald.com/insight/content/doi/10.1108/JEDT-11-2022-0558/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestThis paper aims to inquire into the awareness of Vietnamese architects about design for safety (DfS) and the level of engagement in applying DfS among them to get a generic view of the implementation of DfS in Vietnam. Quantitative research was used, in which a questionnaire was sent to Vietnamese architects to evaluate how they consider and apply DfS in the design process. Inferential and descriptive statistics then analysed the obtained data to identify the role of each factor. The results from the survey conclude that Vietnamese architects have low engagement in applying DfS despite their high awareness and positive attitude towards DfS. Besides, the participants showed the need for further DfS education and training, which is lacking in Vietnamese formal education. In addition, the research also confirms that DfS education and training have positive impacts on the frequency of DfS implementation in Vietnam. This research contributes to the knowledge of DfS implementation in developing countries. In line with this, further studies on the DfS concept in developing countries are needed to draw a more objective overview and give the solution for the low DfS appliance. To the best of the authors’ knowledge, this is the first study inquiring into the implication of DfS in Vietnam, contributing to improving the lack of knowledge in this field in developing countries and Vietnam in particular.Implementation of design for construction safety (DfS) in the Vietnam context: awareness, attitude and practices
Phuong T.C. Phan, Zhipeng Zhou
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

This paper aims to inquire into the awareness of Vietnamese architects about design for safety (DfS) and the level of engagement in applying DfS among them to get a generic view of the implementation of DfS in Vietnam.

Quantitative research was used, in which a questionnaire was sent to Vietnamese architects to evaluate how they consider and apply DfS in the design process. Inferential and descriptive statistics then analysed the obtained data to identify the role of each factor.

The results from the survey conclude that Vietnamese architects have low engagement in applying DfS despite their high awareness and positive attitude towards DfS. Besides, the participants showed the need for further DfS education and training, which is lacking in Vietnamese formal education. In addition, the research also confirms that DfS education and training have positive impacts on the frequency of DfS implementation in Vietnam.

This research contributes to the knowledge of DfS implementation in developing countries. In line with this, further studies on the DfS concept in developing countries are needed to draw a more objective overview and give the solution for the low DfS appliance.

To the best of the authors’ knowledge, this is the first study inquiring into the implication of DfS in Vietnam, contributing to improving the lack of knowledge in this field in developing countries and Vietnam in particular.

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Implementation of design for construction safety (DfS) in the Vietnam context: awareness, attitude and practices10.1108/JEDT-11-2022-0558Journal of Engineering, Design and Technology2023-05-25© 2023 Emerald Publishing LimitedPhuong T.C. PhanZhipeng ZhouJournal of Engineering, Design and Technologyahead-of-printahead-of-print2023-05-2510.1108/JEDT-11-2022-0558https://www.emerald.com/insight/content/doi/10.1108/JEDT-11-2022-0558/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2023 Emerald Publishing Limited
Capabilities required of the conventional project delivery (CPD) approach in producing quality design documentation: the Ghanaian construction industry perspectivehttps://www.emerald.com/insight/content/doi/10.1108/JEDT-11-2022-0559/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestThe conventional project delivery (CPD) approach has been reported in the literature as the most widely used project delivery method in the construction industry globally compared to other delivery methods. However, researchers and practitioners have argued that the approach, specifically during the production of design documentation under the CPD, lacks certain capabilities that ensure quality and enhance project delivery. Therefore, this study aims to use the Ghanaian construction industry to identify the capabilities required of the CPD in practice, particularly during the production of design documentation. The study design follows a pragmatist philosophy and uses mixed methods based on a deductive approach. Data collection involved a questionnaire survey, followed by semi-structured interviews. Quantitative data analysis used descriptive and inferential statistics, whereas qualitative data analysis used content analysis with the assistance of IBM SPSS and QSR Nvivo 12 Pro. Findings indicate that there should be incentives for producing good design documentation quality; mandatory coordination of design documentation; improving collaboration among designers; and allowing contractors to make input during the design stage. The results indicate the need for the identified capabilities to be introduced in the CPD approach to improve design documentation quality. This study offers a significant insight into the specific capabilities that are required of the CPD approach in practice particularly, in the production of design documentationCapabilities required of the conventional project delivery (CPD) approach in producing quality design documentation: the Ghanaian construction industry perspective
Peter Dodzi Kwasi Agbaxode, Ehsan Saghatforoush, Sitsabo Dlamini
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

The conventional project delivery (CPD) approach has been reported in the literature as the most widely used project delivery method in the construction industry globally compared to other delivery methods. However, researchers and practitioners have argued that the approach, specifically during the production of design documentation under the CPD, lacks certain capabilities that ensure quality and enhance project delivery. Therefore, this study aims to use the Ghanaian construction industry to identify the capabilities required of the CPD in practice, particularly during the production of design documentation.

The study design follows a pragmatist philosophy and uses mixed methods based on a deductive approach. Data collection involved a questionnaire survey, followed by semi-structured interviews. Quantitative data analysis used descriptive and inferential statistics, whereas qualitative data analysis used content analysis with the assistance of IBM SPSS and QSR Nvivo 12 Pro.

Findings indicate that there should be incentives for producing good design documentation quality; mandatory coordination of design documentation; improving collaboration among designers; and allowing contractors to make input during the design stage.

The results indicate the need for the identified capabilities to be introduced in the CPD approach to improve design documentation quality.

This study offers a significant insight into the specific capabilities that are required of the CPD approach in practice particularly, in the production of design documentation

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Capabilities required of the conventional project delivery (CPD) approach in producing quality design documentation: the Ghanaian construction industry perspective10.1108/JEDT-11-2022-0559Journal of Engineering, Design and Technology2023-09-14© 2023 Peter Dodzi Kwasi Agbaxode, Ehsan Saghatforoush and Sitsabo Dlamini.Peter Dodzi Kwasi AgbaxodeEhsan SaghatforoushSitsabo DlaminiJournal of Engineering, Design and Technologyahead-of-printahead-of-print2023-09-1410.1108/JEDT-11-2022-0559https://www.emerald.com/insight/content/doi/10.1108/JEDT-11-2022-0559/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2023 Peter Dodzi Kwasi Agbaxode, Ehsan Saghatforoush and Sitsabo Dlamini.http://creativecommons.org/licences/by/4.0/legalcode
Drivers for the implementation of modular construction systems in the AEC industry of developing countrieshttps://www.emerald.com/insight/content/doi/10.1108/JEDT-11-2022-0571/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestThe growing demand for housing and infrastructure, as well as the requirement for affordable housing, has been a significant factor, necessitating investigation for sustainable approaches and implementation of alternative construction innovations. Hence, this study aims to identify and assess the drivers for implementing modular construction systems (MCS) in developing countries. The study adopts a quantitative research approach to seek respondents’ opinions on the factors that can drive the implementation of MCS in developing countries. Accordingly, a structured questionnaire was used as an instrument of data collection based on five Likert scales. The data was analysed using the mean score, one sample t-test, Kruskal–Wallis, factor analysis (FA) and Pearson correlation analysis. Results show that 15 of the 16 major identified drivers were statistically significant towards implementing MCS, which indicates that the drivers are crucial for implementing MCS in developing countries. However, the Kruskal–Wallis test reveals that the respondents have varying opinions on the identified drivers. FA categorised the drivers into four categories, namely, “management and sustainability”, “key performance”, “know-how and logistics” and “regulations and policies”. A strong relationship among the four categories of drivers was established using Pearson correlation, which indicated that all the drivers’ categories are essential for implementing MCS in developing countries. This study identified and assessed the drivers towards implementing MCS in developing countries. The study concludes that the identified drivers are essential for implementing MCS in developing countries. Also, the study considers the government the most placed player in driving the implementation of MCS in developing countries.Drivers for the implementation of modular construction systems in the AEC industry of developing countries
Abdulkabir Opeyemi Bello, Doris Omonogwu Eje, Abdullahi Idris, Mudasiru Abiodun Semiu, Ayaz Ahmad Khan
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

The growing demand for housing and infrastructure, as well as the requirement for affordable housing, has been a significant factor, necessitating investigation for sustainable approaches and implementation of alternative construction innovations. Hence, this study aims to identify and assess the drivers for implementing modular construction systems (MCS) in developing countries.

The study adopts a quantitative research approach to seek respondents’ opinions on the factors that can drive the implementation of MCS in developing countries. Accordingly, a structured questionnaire was used as an instrument of data collection based on five Likert scales. The data was analysed using the mean score, one sample t-test, Kruskal–Wallis, factor analysis (FA) and Pearson correlation analysis.

Results show that 15 of the 16 major identified drivers were statistically significant towards implementing MCS, which indicates that the drivers are crucial for implementing MCS in developing countries. However, the Kruskal–Wallis test reveals that the respondents have varying opinions on the identified drivers. FA categorised the drivers into four categories, namely, “management and sustainability”, “key performance”, “know-how and logistics” and “regulations and policies”. A strong relationship among the four categories of drivers was established using Pearson correlation, which indicated that all the drivers’ categories are essential for implementing MCS in developing countries.

This study identified and assessed the drivers towards implementing MCS in developing countries. The study concludes that the identified drivers are essential for implementing MCS in developing countries. Also, the study considers the government the most placed player in driving the implementation of MCS in developing countries.

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Drivers for the implementation of modular construction systems in the AEC industry of developing countries10.1108/JEDT-11-2022-0571Journal of Engineering, Design and Technology2023-03-20© 2023 Emerald Publishing LimitedAbdulkabir Opeyemi BelloDoris Omonogwu EjeAbdullahi IdrisMudasiru Abiodun SemiuAyaz Ahmad KhanJournal of Engineering, Design and Technologyahead-of-printahead-of-print2023-03-2010.1108/JEDT-11-2022-0571https://www.emerald.com/insight/content/doi/10.1108/JEDT-11-2022-0571/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2023 Emerald Publishing Limited
Benefits of construction data risks management in the construction industryhttps://www.emerald.com/insight/content/doi/10.1108/JEDT-11-2022-0577/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestData represents a critical resource that enables construction companies’ success; thus, its management is very important. The purpose of this study is to assess the benefits of construction data risks management (DRM) in the construction industry (CI). This study adopted a quantitative method and collected data from various South African construction professionals with the aid of an e-questionnaire. These professionals involve electrical engineers, quantity surveyors, architects and mechanical, as well as civil engineers involved under a firm, or organisation within the province of Gauteng, South Africa. Standard deviation, mean item score, non-parametric Kruskal–Wallis H test and exploratory factor analysis were used to analyse the retrieved data. The findings revealed that DRM enhances project and company data availability, promotes confidentiality and enhances integrity, which are the primary benefits of DRM that enable the success of project delivery. The research was carried out only in the province of Gauteng due to COVID-19 travel limitations. The construction companies will have their data permanently in their possession and no interruption will be seen due to data unavailability, which, in turn, will allow long-term and overall pleasant project outcomes. This study seeks to address the benefits of DRM in the CI to give additional knowledge on risk management within the built environment to promote success in every project.Benefits of construction data risks management in the construction industry
Ornella Tanga Tambwe, Clinton Ohis Aigbavboa, Opeoluwa Akinradewo
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

Data represents a critical resource that enables construction companies’ success; thus, its management is very important. The purpose of this study is to assess the benefits of construction data risks management (DRM) in the construction industry (CI).

This study adopted a quantitative method and collected data from various South African construction professionals with the aid of an e-questionnaire. These professionals involve electrical engineers, quantity surveyors, architects and mechanical, as well as civil engineers involved under a firm, or organisation within the province of Gauteng, South Africa. Standard deviation, mean item score, non-parametric Kruskal–Wallis H test and exploratory factor analysis were used to analyse the retrieved data.

The findings revealed that DRM enhances project and company data availability, promotes confidentiality and enhances integrity, which are the primary benefits of DRM that enable the success of project delivery.

The research was carried out only in the province of Gauteng due to COVID-19 travel limitations.

The construction companies will have their data permanently in their possession and no interruption will be seen due to data unavailability, which, in turn, will allow long-term and overall pleasant project outcomes.

This study seeks to address the benefits of DRM in the CI to give additional knowledge on risk management within the built environment to promote success in every project.

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Benefits of construction data risks management in the construction industry10.1108/JEDT-11-2022-0577Journal of Engineering, Design and Technology2023-11-24© 2023 Ornella Tanga Tambwe, Clinton Ohis Aigbavboa and Opeoluwa Akinradewo.Ornella Tanga TambweClinton Ohis AigbavboaOpeoluwa AkinradewoJournal of Engineering, Design and Technologyahead-of-printahead-of-print2023-11-2410.1108/JEDT-11-2022-0577https://www.emerald.com/insight/content/doi/10.1108/JEDT-11-2022-0577/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2023 Ornella Tanga Tambwe, Clinton Ohis Aigbavboa and Opeoluwa Akinradewo.http://creativecommons.org/licences/by/4.0/legalcode
Effect of curing media on the performance of clay bricks partially stabilised with pulverised cow bone ashhttps://www.emerald.com/insight/content/doi/10.1108/JEDT-11-2022-0578/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestThe purpose of this study is to advance the application of pulverised cow bone ash (PCBA) as a partial replacement of cement in soil stabilisation for the production of bricks. The study investigated the impact of PCBA substitution on the characteristic strength of clay bricks under variant curing media. Dried cow bones were pulverised, and an energy-dispersive X-ray fluorescence test was conducted on PCBA samples to determine the chemical constituents and ascertain the pozzolanic characteristics. Ordinary Portland cement (OPC) and PCBA were blended at 100%, 75%, 50%, 25% and 0% of cement substitution by mass to stabilise lateritic clay at 10% total binder content for the production of bricks. The binder-to-lateritic clay matrixes were used to produce clay bricks and cylinders for compressive and splitting tensile strength tests, respectively. The study found that PCBA and OPC have similar chemical compositions. The strength of the clay bricks increased with curing age, and the thermal curing of clay bricks positively impacted the strength development. The study established that PCBA is a suitable substitute for cement, up to 25% for stabilisation in clay brick production. Construction stakeholders can successfully use a PCBA-OPC binder blend of 1:3 to stabilise clay at 10% total binder content for the production of bricks. The stabilised clay bricks should be cured at an elevated temperature of approximately 90°C for 48 h to achieve satisfactory performance. The PCBA-OPC binder blend provides adequate soil stabilisation for the production of clay bricks and curing the clay bricks at elevated temperature. This aspect of the biomass/OPC binder blend has not been explored for brick production, and this is important for the reduction of the environmental impacts of cement production and waste from abattoirs.Effect of curing media on the performance of clay bricks partially stabilised with pulverised cow bone ash
Uche Emmanuel Edike, Olumide Afolarin Adenuga, Daniel Uwumarogie Idusuyi, Abdulkabir Adedamola Oke
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

The purpose of this study is to advance the application of pulverised cow bone ash (PCBA) as a partial replacement of cement in soil stabilisation for the production of bricks. The study investigated the impact of PCBA substitution on the characteristic strength of clay bricks under variant curing media.

Dried cow bones were pulverised, and an energy-dispersive X-ray fluorescence test was conducted on PCBA samples to determine the chemical constituents and ascertain the pozzolanic characteristics. Ordinary Portland cement (OPC) and PCBA were blended at 100%, 75%, 50%, 25% and 0% of cement substitution by mass to stabilise lateritic clay at 10% total binder content for the production of bricks. The binder-to-lateritic clay matrixes were used to produce clay bricks and cylinders for compressive and splitting tensile strength tests, respectively.

The study found that PCBA and OPC have similar chemical compositions. The strength of the clay bricks increased with curing age, and the thermal curing of clay bricks positively impacted the strength development. The study established that PCBA is a suitable substitute for cement, up to 25% for stabilisation in clay brick production.

Construction stakeholders can successfully use a PCBA-OPC binder blend of 1:3 to stabilise clay at 10% total binder content for the production of bricks. The stabilised clay bricks should be cured at an elevated temperature of approximately 90°C for 48 h to achieve satisfactory performance.

The PCBA-OPC binder blend provides adequate soil stabilisation for the production of clay bricks and curing the clay bricks at elevated temperature. This aspect of the biomass/OPC binder blend has not been explored for brick production, and this is important for the reduction of the environmental impacts of cement production and waste from abattoirs.

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Effect of curing media on the performance of clay bricks partially stabilised with pulverised cow bone ash10.1108/JEDT-11-2022-0578Journal of Engineering, Design and Technology2023-08-31© 2023 Emerald Publishing LimitedUche Emmanuel EdikeOlumide Afolarin AdenugaDaniel Uwumarogie IdusuyiAbdulkabir Adedamola OkeJournal of Engineering, Design and Technologyahead-of-printahead-of-print2023-08-3110.1108/JEDT-11-2022-0578https://www.emerald.com/insight/content/doi/10.1108/JEDT-11-2022-0578/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2023 Emerald Publishing Limited
Design for mixed model final assembly line (DfMMFAL): a new tool for assembly interface identification based on assembly process planninghttps://www.emerald.com/insight/content/doi/10.1108/JEDT-11-2022-0582/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestThis paper aims to fulfil a need to identify assembly interfaces from existing products based on their Assembly Process Planning (APP). It proposes a tool to identify assembly interfaces responsible for reused components integration. It is integrated into a design for mixed model final assembly line approach by focusing on the identification of assembly interfaces as a generic tool. It aims to answer the problem of interfaces’ identification from the APP. A tool is developed to identify assembly interfaces responsible for reused component integration. It is based on the use of a rule-based algorithm that analyses an APP and then submits the results to prohibition lists to check their relevance. The tool is then tested using a case study. Finally, the resulting list is subjected to a visual validation step to validate whether the identified interface is a real interface. The results of this study are a tool named ICARRE which identify assembly interfaces using three steps. The tool has been validated by a case study from the helicopter industry. As some interfaces are not contained in the same assembly operations and therefore, may not have been identified by the rule-based algorithm. More research should be done by testing and improving the algorithm with other case studies. The paper includes implications for new product development teams to address the difficulties of integrating reused components into different products. This paper presents a tool for identifying interfaces when sources of knowledge do not allow the use of current methods.Design for mixed model final assembly line (DfMMFAL): a new tool for assembly interface identification based on assembly process planning
M. Boyault Edouard, Jean Camille, Bernier Vincent, Aoussat Améziane
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

This paper aims to fulfil a need to identify assembly interfaces from existing products based on their Assembly Process Planning (APP). It proposes a tool to identify assembly interfaces responsible for reused components integration. It is integrated into a design for mixed model final assembly line approach by focusing on the identification of assembly interfaces as a generic tool. It aims to answer the problem of interfaces’ identification from the APP.

A tool is developed to identify assembly interfaces responsible for reused component integration. It is based on the use of a rule-based algorithm that analyses an APP and then submits the results to prohibition lists to check their relevance. The tool is then tested using a case study. Finally, the resulting list is subjected to a visual validation step to validate whether the identified interface is a real interface.

The results of this study are a tool named ICARRE which identify assembly interfaces using three steps. The tool has been validated by a case study from the helicopter industry.

As some interfaces are not contained in the same assembly operations and therefore, may not have been identified by the rule-based algorithm. More research should be done by testing and improving the algorithm with other case studies.

The paper includes implications for new product development teams to address the difficulties of integrating reused components into different products.

This paper presents a tool for identifying interfaces when sources of knowledge do not allow the use of current methods.

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Design for mixed model final assembly line (DfMMFAL): a new tool for assembly interface identification based on assembly process planning10.1108/JEDT-11-2022-0582Journal of Engineering, Design and Technology2023-07-03© 2023 Emerald Publishing LimitedM. Boyault EdouardJean CamilleBernier VincentAoussat AmézianeJournal of Engineering, Design and Technologyahead-of-printahead-of-print2023-07-0310.1108/JEDT-11-2022-0582https://www.emerald.com/insight/content/doi/10.1108/JEDT-11-2022-0582/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2023 Emerald Publishing Limited
Construction SMEs labour productivity: causal layered analysishttps://www.emerald.com/insight/content/doi/10.1108/JEDT-11-2022-0583/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestSmall and medium-sized contractors are critical to micro and macroeconomic performance. These contractors in South Africa have long been confronted with the problem of business failure because of a plethora of factors, including poor productivity. The purpose of this study is to investigate salient issues undermining the productivity of small and medium-sized contractors in South Africa. This study proposes alternative possibilities to engender productivity improvement. Qualitative data were collected using semi-structured interviews with 15 contractors in Gauteng Province, South Africa. The research data were analysed using content and causal layered analyses. Challenges to contractors’ productivity were associated with inadequately skilled workers, management competence and political factors. Skills development, construction business and political factors were dominant stakeholders’ perceptions. Metaphors for construction labour productivity are presented and reconstructed as alternative directions for productivity improvement. Contractors lose a substantial amount of South African Rand to poor productivity. Alternative directions provided in this study can be leveraged to increase profitability in construction organizations, enhance the social well-being of South Africans and ultimately improve the contribution of contractors to the South African economy. The causal layered analysis (CLA) applied in this study is novel to construction labour productivity research. The four connected layers of CLA, which make a greater depth of inquiry possible, were explored to investigate labour productivity in construction organizations.Construction SMEs labour productivity: causal layered analysis
Oluseyi Julius Adebowale, Justus Ngala Agumba
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

Small and medium-sized contractors are critical to micro and macroeconomic performance. These contractors in South Africa have long been confronted with the problem of business failure because of a plethora of factors, including poor productivity. The purpose of this study is to investigate salient issues undermining the productivity of small and medium-sized contractors in South Africa. This study proposes alternative possibilities to engender productivity improvement.

Qualitative data were collected using semi-structured interviews with 15 contractors in Gauteng Province, South Africa. The research data were analysed using content and causal layered analyses.

Challenges to contractors’ productivity were associated with inadequately skilled workers, management competence and political factors. Skills development, construction business and political factors were dominant stakeholders’ perceptions. Metaphors for construction labour productivity are presented and reconstructed as alternative directions for productivity improvement.

Contractors lose a substantial amount of South African Rand to poor productivity. Alternative directions provided in this study can be leveraged to increase profitability in construction organizations, enhance the social well-being of South Africans and ultimately improve the contribution of contractors to the South African economy.

The causal layered analysis (CLA) applied in this study is novel to construction labour productivity research. The four connected layers of CLA, which make a greater depth of inquiry possible, were explored to investigate labour productivity in construction organizations.

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Construction SMEs labour productivity: causal layered analysis10.1108/JEDT-11-2022-0583Journal of Engineering, Design and Technology2023-08-16© 2023 Emerald Publishing LimitedOluseyi Julius AdebowaleJustus Ngala AgumbaJournal of Engineering, Design and Technologyahead-of-printahead-of-print2023-08-1610.1108/JEDT-11-2022-0583https://www.emerald.com/insight/content/doi/10.1108/JEDT-11-2022-0583/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2023 Emerald Publishing Limited
Adoption of distributed ledger technology for construction projects: a study of the challenges in a developing countryhttps://www.emerald.com/insight/content/doi/10.1108/JEDT-11-2023-0474/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestThe construction industry in Nigeria, like many others worldwide, grapples with increasing demands for enhanced efficiency, transparency and security. While distributed ledger technology (DLT) offers substantial potential in tackling these issues, its implementation faces numerous obstacles. This study aims to investigate the challenges hindering the adoption of DLT within the Nigerian construction sector, capitalizing on a recognized research gap in this field. A comprehensive literature review identified 20 challenges to DLT adoption. A structured questionnaire was developed and distributed to 98 construction professionals selected from a pool of 5,330 members using purposive and snowball sampling. Background information was assessed using frequency and percentage, data normality with the Shapiro–Wilk test and nonparametric data compared using the Kruskal–Wallis H-test. Factor analysis was then used to reduce the challenges into a more coherent set. Findings revealed the top five challenges: power supply issues, data privacy and compliance, an uncertain legal framework, insufficient training and education and a lack of skilled workforce. Further analysis revealed four clusters of challenges, namely, technical and infrastructure barriers, organizational and cultural challenges, financial and economic challenges and regulatory and legal challenges. Through the evaluation of challenges and potential strategies to overcome them, this study aims to lay a foundation that assists construction entities in effectively harnessing the benefits of DLT while navigating the obstacles inherent in its adoption. This study contributes to the existing body of knowledge by offering insights into the challenges surrounding the adoption of DLT, specifically within the Nigerian construction sector. By juxtaposing the findings from this study with existing research conducted in other countries such as India, South Africa and the USA, a more comprehensive understanding of the challenges unique to the Nigerian context can be gained.Adoption of distributed ledger technology for construction projects: a study of the challenges in a developing country
Ayodeji Emmanuel Oke, John Aliu, Lydia Uyi Ehiosun, Ahmed Farouk Kineber, Seyi Segun Stephen
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

The construction industry in Nigeria, like many others worldwide, grapples with increasing demands for enhanced efficiency, transparency and security. While distributed ledger technology (DLT) offers substantial potential in tackling these issues, its implementation faces numerous obstacles. This study aims to investigate the challenges hindering the adoption of DLT within the Nigerian construction sector, capitalizing on a recognized research gap in this field.

A comprehensive literature review identified 20 challenges to DLT adoption. A structured questionnaire was developed and distributed to 98 construction professionals selected from a pool of 5,330 members using purposive and snowball sampling. Background information was assessed using frequency and percentage, data normality with the Shapiro–Wilk test and nonparametric data compared using the Kruskal–Wallis H-test. Factor analysis was then used to reduce the challenges into a more coherent set.

Findings revealed the top five challenges: power supply issues, data privacy and compliance, an uncertain legal framework, insufficient training and education and a lack of skilled workforce. Further analysis revealed four clusters of challenges, namely, technical and infrastructure barriers, organizational and cultural challenges, financial and economic challenges and regulatory and legal challenges.

Through the evaluation of challenges and potential strategies to overcome them, this study aims to lay a foundation that assists construction entities in effectively harnessing the benefits of DLT while navigating the obstacles inherent in its adoption.

This study contributes to the existing body of knowledge by offering insights into the challenges surrounding the adoption of DLT, specifically within the Nigerian construction sector. By juxtaposing the findings from this study with existing research conducted in other countries such as India, South Africa and the USA, a more comprehensive understanding of the challenges unique to the Nigerian context can be gained.

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Adoption of distributed ledger technology for construction projects: a study of the challenges in a developing country10.1108/JEDT-11-2023-0474Journal of Engineering, Design and Technology2024-02-16© 2024 Emerald Publishing LimitedAyodeji Emmanuel OkeJohn AliuLydia Uyi EhiosunAhmed Farouk KineberSeyi Segun StephenJournal of Engineering, Design and Technologyahead-of-printahead-of-print2024-02-1610.1108/JEDT-11-2023-0474https://www.emerald.com/insight/content/doi/10.1108/JEDT-11-2023-0474/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2024 Emerald Publishing Limited
Influences of critical success factors on nonprofit outcomes of ODA education construction projects: a case of Vietnamhttps://www.emerald.com/insight/content/doi/10.1108/JEDT-11-2023-0476/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestOfficial development assistance (ODA) education projects have played a crucial role in improving education and training fields in developing countries, but are often facing several considerable challenges (e.g. long implementation time). Thus, this study aims to identify critical success factors (CSFs) in ODA education projects and investigate the influences of CSFs on ODA project performance measured by 11 nonprofit outcomes (NPOs). A comprehensive literature review and expert interviews were conducted to compile a list of 35 potential success factors for ODA education projects. Using a survey questionnaire, 143 valid responses were collected from practitioners joining ODA projects in Vietnam. Various statistical methods (e.g. mean score method, Spearman rank correlation test, analysis of variance test, factor analysis and regression analysis) were used to analyze the collected data. This research identified seven CSFs for ODA education projects in Vietnam: comprehensive project management competency (C1), clarity and compliance in project execution (C2), transparency and committed funding (C3), external context conditions (C4), well-controlled design and project management procedures (C5), preparations in equipment and complexity insight (C6) and punctual site delivery (C7). Furthermore, the results of regression analysis indicated that comprehensive project management competency (C1) and transparency and committed funding (C3) could significantly affect various NPOs. This study offers significant insights for practitioners (e.g. project managers) to improve ODA projects’ performance and effectiveness in the education and training sector of a developing country context (like Vietnam).Influences of critical success factors on nonprofit outcomes of ODA education construction projects: a case of Vietnam
Duc-Anh Le, Chau Ngoc Dang, Long Le-Hoai, Viet Quoc Hoang
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

Official development assistance (ODA) education projects have played a crucial role in improving education and training fields in developing countries, but are often facing several considerable challenges (e.g. long implementation time). Thus, this study aims to identify critical success factors (CSFs) in ODA education projects and investigate the influences of CSFs on ODA project performance measured by 11 nonprofit outcomes (NPOs).

A comprehensive literature review and expert interviews were conducted to compile a list of 35 potential success factors for ODA education projects. Using a survey questionnaire, 143 valid responses were collected from practitioners joining ODA projects in Vietnam. Various statistical methods (e.g. mean score method, Spearman rank correlation test, analysis of variance test, factor analysis and regression analysis) were used to analyze the collected data.

This research identified seven CSFs for ODA education projects in Vietnam: comprehensive project management competency (C1), clarity and compliance in project execution (C2), transparency and committed funding (C3), external context conditions (C4), well-controlled design and project management procedures (C5), preparations in equipment and complexity insight (C6) and punctual site delivery (C7). Furthermore, the results of regression analysis indicated that comprehensive project management competency (C1) and transparency and committed funding (C3) could significantly affect various NPOs.

This study offers significant insights for practitioners (e.g. project managers) to improve ODA projects’ performance and effectiveness in the education and training sector of a developing country context (like Vietnam).

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Influences of critical success factors on nonprofit outcomes of ODA education construction projects: a case of Vietnam10.1108/JEDT-11-2023-0476Journal of Engineering, Design and Technology2024-03-26© 2024 Emerald Publishing LimitedDuc-Anh LeChau Ngoc DangLong Le-HoaiViet Quoc HoangJournal of Engineering, Design and Technologyahead-of-printahead-of-print2024-03-2610.1108/JEDT-11-2023-0476https://www.emerald.com/insight/content/doi/10.1108/JEDT-11-2023-0476/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2024 Emerald Publishing Limited
An efficient hybrid tunicate swarm algorithm and radial basis function searching technique for maximum power point tracking in wind energy conversion systemhttps://www.emerald.com/insight/content/doi/10.1108/JEDT-12-2020-0494/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestThe purpose of this paper is to track the maximal power of wind energy conversion system (WECS) and enhance the search capability for WECS maximum power point tracking (MPPT). The hybrid technique is the combination of tunicate swarm algorithm (TSA) and radial basis function neural network. TSA gets input parameters from the rectifier outputs such as rectifier direct current (DC) voltage, DC current and time. From the input parameters, it enhances the reduced fault power of rectifier and generates training data set based on the MPPT conditions. The training data set is used in radial basis function. During the execution time, it produces the rectifier reference DC side voltage that is converted to control pulses of inverter switches. Finally, the proposed method is executed in MATLAB/Simulink site, and the performance is compared with different existing methods like particle swarm optimization algorithm and hill climb searching technique. Then the output illustrates the performance of the proposed method and confirms its capability to solve issues.An efficient hybrid tunicate swarm algorithm and radial basis function searching technique for maximum power point tracking in wind energy conversion system
Paulthurai Rajesh, Francis H. Shajin, Kumar Cherukupalli
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

The purpose of this paper is to track the maximal power of wind energy conversion system (WECS) and enhance the search capability for WECS maximum power point tracking (MPPT).

The hybrid technique is the combination of tunicate swarm algorithm (TSA) and radial basis function neural network.

TSA gets input parameters from the rectifier outputs such as rectifier direct current (DC) voltage, DC current and time. From the input parameters, it enhances the reduced fault power of rectifier and generates training data set based on the MPPT conditions. The training data set is used in radial basis function. During the execution time, it produces the rectifier reference DC side voltage that is converted to control pulses of inverter switches.

Finally, the proposed method is executed in MATLAB/Simulink site, and the performance is compared with different existing methods like particle swarm optimization algorithm and hill climb searching technique. Then the output illustrates the performance of the proposed method and confirms its capability to solve issues.

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An efficient hybrid tunicate swarm algorithm and radial basis function searching technique for maximum power point tracking in wind energy conversion system10.1108/JEDT-12-2020-0494Journal of Engineering, Design and Technology2021-10-15© 2021 Emerald Publishing LimitedPaulthurai RajeshFrancis H. ShajinKumar CherukupalliJournal of Engineering, Design and Technologyahead-of-printahead-of-print2021-10-1510.1108/JEDT-12-2020-0494https://www.emerald.com/insight/content/doi/10.1108/JEDT-12-2020-0494/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2021 Emerald Publishing Limited
Risk resources management influence on public–private partnership risk management in construction industry. Confirmatory factor analysis approachhttps://www.emerald.com/insight/content/doi/10.1108/JEDT-12-2021-0699/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestConstruction organisations cannot underestimate the improvement in public–private partnership (PPP) projects’ implementation. At the same time, construction organisations cannot overlook the risk arising from engaging in PPP construction projects. Hence, this study aims to establish the influence of risk resource management (RRM) in managing PPP risk in the construction industry in Ghana. The researchers adopted qualitative and quantitative research methods to achieve the aim of the study, in which Delphi questions and a close-ended questionnaire were developed. A total of 650 construction specialists, including procurement officers, consultants, project managers, quantity surveyors, site engineers and planning officers were chosen using random and purposive sampling techniques. Recovered data were analysed using descriptive statistics and confirmatory factor analysis (CFA). The CFA maximum likelihood estimation extractor compresses 19 variables into 3 pattern matrices. The results of the study revealed three factors that measure RRM in Ghana’s PPP construction industry, including financial resource management which was influenced by communicating the budget to project team members and project partners understanding the budget, and material resource management which was influenced by the provision of materials transportation and provision of delivery programs and labour resource management which was impacted by a commitment to pay social security and taxes and provision of good salaries, to address RRM in PPP construction organisations. To incessantly improve the PPP risk management (RM) in construction through RRM, there should be a strong liaison between the universities, government agencies and the construction industry, and such collaboration will assist the industry to obtain first-hand information regarding the study findings and how they can be implemented to help the development of RM in the construction industry. This study is limited to Ghana and CFA and further study should explore structural equation model to determine the structure and measurement model of the risk resource variables. The study may be valuable to industry stakeholders looking for new approaches to improve RM in their construction activities, particularly in PPP projects. Also, to assist reduce PPP risk, construction companies should use RRM in their organisations.Risk resources management influence on public–private partnership risk management in construction industry. Confirmatory factor analysis approach
Timothy Adu Gyamfi, Clinton Ohis Aigbavboa, Wellington Didibhuku Thwala
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

Construction organisations cannot underestimate the improvement in public–private partnership (PPP) projects’ implementation. At the same time, construction organisations cannot overlook the risk arising from engaging in PPP construction projects. Hence, this study aims to establish the influence of risk resource management (RRM) in managing PPP risk in the construction industry in Ghana.

The researchers adopted qualitative and quantitative research methods to achieve the aim of the study, in which Delphi questions and a close-ended questionnaire were developed. A total of 650 construction specialists, including procurement officers, consultants, project managers, quantity surveyors, site engineers and planning officers were chosen using random and purposive sampling techniques. Recovered data were analysed using descriptive statistics and confirmatory factor analysis (CFA). The CFA maximum likelihood estimation extractor compresses 19 variables into 3 pattern matrices.

The results of the study revealed three factors that measure RRM in Ghana’s PPP construction industry, including financial resource management which was influenced by communicating the budget to project team members and project partners understanding the budget, and material resource management which was influenced by the provision of materials transportation and provision of delivery programs and labour resource management which was impacted by a commitment to pay social security and taxes and provision of good salaries, to address RRM in PPP construction organisations.

To incessantly improve the PPP risk management (RM) in construction through RRM, there should be a strong liaison between the universities, government agencies and the construction industry, and such collaboration will assist the industry to obtain first-hand information regarding the study findings and how they can be implemented to help the development of RM in the construction industry. This study is limited to Ghana and CFA and further study should explore structural equation model to determine the structure and measurement model of the risk resource variables.

The study may be valuable to industry stakeholders looking for new approaches to improve RM in their construction activities, particularly in PPP projects. Also, to assist reduce PPP risk, construction companies should use RRM in their organisations.

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Risk resources management influence on public–private partnership risk management in construction industry. Confirmatory factor analysis approach10.1108/JEDT-12-2021-0699Journal of Engineering, Design and Technology2022-12-08© 2022 Emerald Publishing LimitedTimothy Adu GyamfiClinton Ohis AigbavboaWellington Didibhuku ThwalaJournal of Engineering, Design and Technologyahead-of-printahead-of-print2022-12-0810.1108/JEDT-12-2021-0699https://www.emerald.com/insight/content/doi/10.1108/JEDT-12-2021-0699/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2022 Emerald Publishing Limited
An assessment of users’ satisfaction with a smart building on university campus through post-occupancy evaluationhttps://www.emerald.com/insight/content/doi/10.1108/JEDT-12-2021-0714/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestThis study aims to present the post-occupancy evaluation (POE) of a smart building on a university campus. Literature review was conducted to report on the smart building concept and POE. A total of 49 performance indicators, classified according to the technical, functional and behavioral elements, were investigated. A case study of a smart building in a university campus was selected to assess the users’ satisfaction through POE. A total of 90 users from the academic and administrative staff of the building were contacted through a Web-based questionnaire survey, while 35 usable responses were obtained. The findings revealed that the occupants were satisfied with several aspects of the building performance indicators; however, issues related to ventilation, control of thermostats, amount of natural lighting through low-E windows and privacy were identified. Ultimately, the study reveals that, although the adoption of smart technologies has the potential to provide an excellent and comfortable work environment, the efficient selection and/or maintenance of the adopted technologies is crucial. The concept of smart buildings is perceived to be the future of the industry. Despite this growing need for “smartization,” the performance of a building ultimately depends on how it satisfies the needs of those who use them. The value and implication of this study is inherent in its emphasis on the satisfaction of buildings users in futuristic designs of buildings. The study shows that POEs can be used to assess the satisfaction of users of smart buildings to understand what works, as well as what needs redesign or improvement.An assessment of users’ satisfaction with a smart building on university campus through post-occupancy evaluation
Mohammad A. Hassanain, Muizz Oladapo Sanni-Anibire, Abubakar Sadiq Mahmoud
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

This study aims to present the post-occupancy evaluation (POE) of a smart building on a university campus.

Literature review was conducted to report on the smart building concept and POE. A total of 49 performance indicators, classified according to the technical, functional and behavioral elements, were investigated. A case study of a smart building in a university campus was selected to assess the users’ satisfaction through POE. A total of 90 users from the academic and administrative staff of the building were contacted through a Web-based questionnaire survey, while 35 usable responses were obtained.

The findings revealed that the occupants were satisfied with several aspects of the building performance indicators; however, issues related to ventilation, control of thermostats, amount of natural lighting through low-E windows and privacy were identified. Ultimately, the study reveals that, although the adoption of smart technologies has the potential to provide an excellent and comfortable work environment, the efficient selection and/or maintenance of the adopted technologies is crucial.

The concept of smart buildings is perceived to be the future of the industry. Despite this growing need for “smartization,” the performance of a building ultimately depends on how it satisfies the needs of those who use them. The value and implication of this study is inherent in its emphasis on the satisfaction of buildings users in futuristic designs of buildings. The study shows that POEs can be used to assess the satisfaction of users of smart buildings to understand what works, as well as what needs redesign or improvement.

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An assessment of users’ satisfaction with a smart building on university campus through post-occupancy evaluation10.1108/JEDT-12-2021-0714Journal of Engineering, Design and Technology2022-05-24© 2020 Emerald Publishing LimitedMohammad A. HassanainMuizz Oladapo Sanni-AnibireAbubakar Sadiq MahmoudJournal of Engineering, Design and Technologyahead-of-printahead-of-print2022-05-2410.1108/JEDT-12-2021-0714https://www.emerald.com/insight/content/doi/10.1108/JEDT-12-2021-0714/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2020 Emerald Publishing Limited
What are the influencing factors of government’s trust decision-making on private sector in PPP projects: evidence from China?https://www.emerald.com/insight/content/doi/10.1108/JEDT-12-2021-0715/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestThe purpose of this paper is twofold: first, it explores the influencing factors of the government’s trust decision-making in the private sector; second, it explores how these influencing factors affect the government’s trust decisions. A theoretical model was established, and a questionnaire survey was conducted among 152 professionals. The collected datas were analyzed by the structural equation modeling (SEM) method. The study identified four critical factors that influence the government’s decision to trust the private sector in public-private-partnership (PPP) projects. All the four factors have a positively correlated impact on the government’s trust decision-making. The structural equation path analysis shows that the most important factor affecting the government’s trust decision-making is the trustee’s (private sector) trustworthy characteristics, and the path coefficient is 0.92. The path coefficients of risk perception and the trustor’s trust tendency are 0.83 and 0.74, respectively. The influence of the legal system environment on government trust decision-making is moderate, with a path coefficient of 0.68. This paper contributes to the literature in two aspects. First, the factors influencing decision-making to government trust in the private sector in PPP projects have been identified. Second, a comprehensive view of the mechanism of government trust in the private sector in PPP projects has been theorized by the SEM method.What are the influencing factors of government’s trust decision-making on private sector in PPP projects: evidence from China?
Huimin Li, Chenchen Xu, Yongchao Cao, Chengyi Zhang
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

The purpose of this paper is twofold: first, it explores the influencing factors of the government’s trust decision-making in the private sector; second, it explores how these influencing factors affect the government’s trust decisions.

A theoretical model was established, and a questionnaire survey was conducted among 152 professionals. The collected datas were analyzed by the structural equation modeling (SEM) method.

The study identified four critical factors that influence the government’s decision to trust the private sector in public-private-partnership (PPP) projects. All the four factors have a positively correlated impact on the government’s trust decision-making. The structural equation path analysis shows that the most important factor affecting the government’s trust decision-making is the trustee’s (private sector) trustworthy characteristics, and the path coefficient is 0.92. The path coefficients of risk perception and the trustor’s trust tendency are 0.83 and 0.74, respectively. The influence of the legal system environment on government trust decision-making is moderate, with a path coefficient of 0.68.

This paper contributes to the literature in two aspects. First, the factors influencing decision-making to government trust in the private sector in PPP projects have been identified. Second, a comprehensive view of the mechanism of government trust in the private sector in PPP projects has been theorized by the SEM method.

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What are the influencing factors of government’s trust decision-making on private sector in PPP projects: evidence from China?10.1108/JEDT-12-2021-0715Journal of Engineering, Design and Technology2022-03-10© 2022 Emerald Publishing LimitedHuimin LiChenchen XuYongchao CaoChengyi ZhangJournal of Engineering, Design and Technologyahead-of-printahead-of-print2022-03-1010.1108/JEDT-12-2021-0715https://www.emerald.com/insight/content/doi/10.1108/JEDT-12-2021-0715/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2022 Emerald Publishing Limited
Stimulation strategies to promote green building uptake in developing countries: the case of Ghanahttps://www.emerald.com/insight/content/doi/10.1108/JEDT-12-2021-0719/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestThe purpose of this paper is to ascertain the significant stimulating measures/enablers relating to the existing building regulations for promoting the adoption and overcoming the barriers to the uptake and implementation of the green building concept (GBC) in developing countries using Ghana as a case. The quantitative research approach was used to attain the study’s goal. Purposive and snowball sampling techniques were found to be suitable for collecting data from 292 relevant stakeholders in Ghana’s construction industry. The mean score ranking technique, in conjunction with the relative importance index, was used to establish the relative ranking of, among other things, the stimulus measures for increasing green building uptake in Ghana. An exploratory factor analysis was also used to classify the most significant stimulation strategies for improving green building uptake. “Educational programmes relevant to GBTs for developers, contractors, and policymakers,” “sufficient information on the cost and benefits of GBTs” and “mandated green building codes and regulations” were the top three listed stimulating measures to promote increasing use of green building technologies (GBTs). The enablers were classified as follows: government regulations and policies; commitment and GB research; education and publicity; and incentives and support. The study was conducted in Ghana, a developing nation, and thus the findings and implications are peculiar to Ghana. However, the study’s findings have important practical implications for the adoption and marketing of GBCs and GBTs in other developing nations. Prioritizing major stimulation initiatives may be beneficial in terms of overcoming the constraints to the adoption of GBCs and GBTs in developing countries.Stimulation strategies to promote green building uptake in developing countries: the case of Ghana
Lee Felix Anzagira, Daniel Duah, Edward Badu, Eric Kwame Simpeh, Alexander B. Marful
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

The purpose of this paper is to ascertain the significant stimulating measures/enablers relating to the existing building regulations for promoting the adoption and overcoming the barriers to the uptake and implementation of the green building concept (GBC) in developing countries using Ghana as a case.

The quantitative research approach was used to attain the study’s goal. Purposive and snowball sampling techniques were found to be suitable for collecting data from 292 relevant stakeholders in Ghana’s construction industry. The mean score ranking technique, in conjunction with the relative importance index, was used to establish the relative ranking of, among other things, the stimulus measures for increasing green building uptake in Ghana. An exploratory factor analysis was also used to classify the most significant stimulation strategies for improving green building uptake.

“Educational programmes relevant to GBTs for developers, contractors, and policymakers,” “sufficient information on the cost and benefits of GBTs” and “mandated green building codes and regulations” were the top three listed stimulating measures to promote increasing use of green building technologies (GBTs). The enablers were classified as follows: government regulations and policies; commitment and GB research; education and publicity; and incentives and support.

The study was conducted in Ghana, a developing nation, and thus the findings and implications are peculiar to Ghana. However, the study’s findings have important practical implications for the adoption and marketing of GBCs and GBTs in other developing nations.

Prioritizing major stimulation initiatives may be beneficial in terms of overcoming the constraints to the adoption of GBCs and GBTs in developing countries.

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Stimulation strategies to promote green building uptake in developing countries: the case of Ghana10.1108/JEDT-12-2021-0719Journal of Engineering, Design and Technology2022-05-25© 2022 Emerald Publishing LimitedLee Felix AnzagiraDaniel DuahEdward BaduEric Kwame SimpehAlexander B. MarfulJournal of Engineering, Design and Technologyahead-of-printahead-of-print2022-05-2510.1108/JEDT-12-2021-0719https://www.emerald.com/insight/content/doi/10.1108/JEDT-12-2021-0719/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2022 Emerald Publishing Limited
Development of pavement roughness regression models based on smartphone measurementshttps://www.emerald.com/insight/content/doi/10.1108/JEDT-12-2021-0723/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestThe purpose of this paper was to study the possibility of using smartphone roughness measurements for developing pavement roughness regression models as a function of pavement age, traffic loading and traffic volume variables. Also, the effects of patching and pavement distresses on pavement roughness were investigated. The work focused on establishing pavement roughness prediction models and applying these models to pavement management systems (PMS) to help decision-makers choose the best maintenance and rehabilitation (M&R) options by using cost-effective methods. Signal processing techniques including filtering and processing techniques were used to obtain the International Roughness Index (IRI) from raw acceleration data collected from smartphone accelerometer sensors. The obtained IRI values were inputted as a dependent variable in analytical regression models as well as several independent variables with proper transformations. According to the study results, several regression models were developed with a big variation in the coefficients of determination (R2). However, the best models included pavement age, accumulated traffic volume (∑TV) and construction quality factor (CQF) with R2 equal to 0.63. It was also found that the effects of pavement distresses and patching was significant at a-level < 0.05. The patching effect on pavement roughness was found higher than the effect of other pavement distresses. The presented results and methods in this paper could be used in the future predictions of pavement roughness and help the decision-makers to estimate M&R needs. The work focused on establishing IRI prediction models and applying these models to the PMS to help decision-makers choose the best M & R options. To develop sound pavement roughness models, it is essential to collect roughness data using automated procedures. However, applying these procedures in developing countries faces several difficulties such as the high price and operation costs of roughness equipment and lack of technical experience. The advantage of using IRI values taken from smartphones is that the roughness evaluation survey may be expanded to cover the full road network at a cheaper cost than with automated instruments. Therefore, if the roughness survey covers more roads, the prediction model’s accuracy will be improved.Development of pavement roughness regression models based on smartphone measurements
Turki I. Al-Suleiman (Obaidat), Yazan Ibrahim Alatoom
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

The purpose of this paper was to study the possibility of using smartphone roughness measurements for developing pavement roughness regression models as a function of pavement age, traffic loading and traffic volume variables. Also, the effects of patching and pavement distresses on pavement roughness were investigated. The work focused on establishing pavement roughness prediction models and applying these models to pavement management systems (PMS) to help decision-makers choose the best maintenance and rehabilitation (M&R) options by using cost-effective methods.

Signal processing techniques including filtering and processing techniques were used to obtain the International Roughness Index (IRI) from raw acceleration data collected from smartphone accelerometer sensors. The obtained IRI values were inputted as a dependent variable in analytical regression models as well as several independent variables with proper transformations.

According to the study results, several regression models were developed with a big variation in the coefficients of determination (R2). However, the best models included pavement age, accumulated traffic volume (∑TV) and construction quality factor (CQF) with R2 equal to 0.63. It was also found that the effects of pavement distresses and patching was significant at a-level < 0.05. The patching effect on pavement roughness was found higher than the effect of other pavement distresses.

The presented results and methods in this paper could be used in the future predictions of pavement roughness and help the decision-makers to estimate M&R needs. The work focused on establishing IRI prediction models and applying these models to the PMS to help decision-makers choose the best M & R options.

To develop sound pavement roughness models, it is essential to collect roughness data using automated procedures. However, applying these procedures in developing countries faces several difficulties such as the high price and operation costs of roughness equipment and lack of technical experience. The advantage of using IRI values taken from smartphones is that the roughness evaluation survey may be expanded to cover the full road network at a cheaper cost than with automated instruments. Therefore, if the roughness survey covers more roads, the prediction model’s accuracy will be improved.

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Development of pavement roughness regression models based on smartphone measurements10.1108/JEDT-12-2021-0723Journal of Engineering, Design and Technology2022-05-24© 2022 Emerald Publishing LimitedTurki I. Al-Suleiman (Obaidat)Yazan Ibrahim AlatoomJournal of Engineering, Design and Technologyahead-of-printahead-of-print2022-05-2410.1108/JEDT-12-2021-0723https://www.emerald.com/insight/content/doi/10.1108/JEDT-12-2021-0723/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2022 Emerald Publishing Limited
The unsolicited proposal and performance of private participation infrastructure projects in developing countrieshttps://www.emerald.com/insight/content/doi/10.1108/JEDT-12-2021-0730/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestThe primary purpose of this study is to explore the relationship between the unsolicited proposal (USP) and the performance of private participation infrastructure (PPI) projects in developing countries. The main data set for this study was collected from the World Bank database consisting of 8,951 PPI projects that occurred in developing countries from 1996 to 2020. Hierarchical logistic regression was applied for investigating the effects of USPs on project success. Three moderators, namely, control of corruption, presence of local sponsor and project size were also included in the model to test the impact of their interactions with the USP on the performance of PPI projects. Further, to assess the impact of the effect of USPs, the average marginal effect was calculated. The framework used in this study consists of 18 control variables, three moderators and one noncontrolled independent variable (the USP). The results of hierarchical logistic regression indicate that USPs have a significant and negative effect on the success of PPI projects occurring in developing countries. The negative effect of a USP weakens with the presence of local sponsors and stronger control of corruption in the host country. However, contrary to the authors’ expectations, the results show that project size does not significantly affect the association between USPs and the success of PPI projects. Moreover, the results of average marginal effects show that the negative impact of USP on the success of PPI projects ranges between 2.4% and 3.8%. This study quantifies the negative impact of USP on the success of PPI projects in developing countries, which will be helpful for the practitioners to understand the associated risk with USP projects. Furthermore, it also identifies the moderating roles of control of corruption and the presence of local sponsors on the relationship between USP and the success of PPI projects.The unsolicited proposal and performance of private participation infrastructure projects in developing countries
Muhammad Ayat, Azmat Ullah, Changwook Kang
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

The primary purpose of this study is to explore the relationship between the unsolicited proposal (USP) and the performance of private participation infrastructure (PPI) projects in developing countries.

The main data set for this study was collected from the World Bank database consisting of 8,951 PPI projects that occurred in developing countries from 1996 to 2020. Hierarchical logistic regression was applied for investigating the effects of USPs on project success. Three moderators, namely, control of corruption, presence of local sponsor and project size were also included in the model to test the impact of their interactions with the USP on the performance of PPI projects. Further, to assess the impact of the effect of USPs, the average marginal effect was calculated. The framework used in this study consists of 18 control variables, three moderators and one noncontrolled independent variable (the USP).

The results of hierarchical logistic regression indicate that USPs have a significant and negative effect on the success of PPI projects occurring in developing countries. The negative effect of a USP weakens with the presence of local sponsors and stronger control of corruption in the host country. However, contrary to the authors’ expectations, the results show that project size does not significantly affect the association between USPs and the success of PPI projects. Moreover, the results of average marginal effects show that the negative impact of USP on the success of PPI projects ranges between 2.4% and 3.8%.

This study quantifies the negative impact of USP on the success of PPI projects in developing countries, which will be helpful for the practitioners to understand the associated risk with USP projects. Furthermore, it also identifies the moderating roles of control of corruption and the presence of local sponsors on the relationship between USP and the success of PPI projects.

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The unsolicited proposal and performance of private participation infrastructure projects in developing countries10.1108/JEDT-12-2021-0730Journal of Engineering, Design and Technology2022-03-28© 2022 Emerald Publishing LimitedMuhammad AyatAzmat UllahChangwook KangJournal of Engineering, Design and Technologyahead-of-printahead-of-print2022-03-2810.1108/JEDT-12-2021-0730https://www.emerald.com/insight/content/doi/10.1108/JEDT-12-2021-0730/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2022 Emerald Publishing Limited
Factors supporting the implementation of buildability assessment as a tool for buildability improvementhttps://www.emerald.com/insight/content/doi/10.1108/JEDT-12-2021-0738/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestImproving buildability of building designs with the aid of buildability assessment is essential because of the effect of designs on construction. Despite the plethora of research into buildability reported over the years, a review of the literature shown a dearth of research into the factors supporting the implementation of buildability assessment. Because buildability assessment has been confirmed to be highly beneficial to construction business, this study aims to investigate the factors supporting the implementation of buildability assessment as a tool for buildability improvement using Nigeria as a representative case. Survey research method was adopted for the study. Questionnaires were administered to a purposively selected group of architects, engineers, builders and quantity surveyors involved in construction project delivery within client, consulting and contracting organisations in Nigeria. A total of 368 questionnaires were distributed among the sampled participants, out of which, a total of 219 representing 60% were sufficiently filled and returned. Data collected were analysed using inferential and descriptive statistics. The results revealed owner’s commitment, clients’ awareness of the benefits of conducting buildability assessment on building design, unity amongst different professionals in the construction industry, designers consider buildability important, adequate coordination amongst different design disciplines, adequate channel for co-ordination and communication between designers and constructors at the design stage and adequate support from the government as the top most seven factors supporting buildability assessment implementation in construction sector of Nigeria. Secondly, the results from the research revealed that there is no statistically significant difference in factors supporting buildability assessment implementation in construction between clients and consulting and contracting construction organisations in Nigeria. The findings provide in-depth insight of the factors supporting the implementation of buildability assessment in construction that can help principal stakeholders in construction to facilitate development of strategies required in supporting the adoption and implementation of buildability assessment tool for buildability improvement.Factors supporting the implementation of buildability assessment as a tool for buildability improvement
Innocent Chigozie Osuizugbo, Kevin Chuks Okolie, Olalekan Shamsideen Oshodi
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

Improving buildability of building designs with the aid of buildability assessment is essential because of the effect of designs on construction. Despite the plethora of research into buildability reported over the years, a review of the literature shown a dearth of research into the factors supporting the implementation of buildability assessment. Because buildability assessment has been confirmed to be highly beneficial to construction business, this study aims to investigate the factors supporting the implementation of buildability assessment as a tool for buildability improvement using Nigeria as a representative case.

Survey research method was adopted for the study. Questionnaires were administered to a purposively selected group of architects, engineers, builders and quantity surveyors involved in construction project delivery within client, consulting and contracting organisations in Nigeria. A total of 368 questionnaires were distributed among the sampled participants, out of which, a total of 219 representing 60% were sufficiently filled and returned. Data collected were analysed using inferential and descriptive statistics.

The results revealed owner’s commitment, clients’ awareness of the benefits of conducting buildability assessment on building design, unity amongst different professionals in the construction industry, designers consider buildability important, adequate coordination amongst different design disciplines, adequate channel for co-ordination and communication between designers and constructors at the design stage and adequate support from the government as the top most seven factors supporting buildability assessment implementation in construction sector of Nigeria. Secondly, the results from the research revealed that there is no statistically significant difference in factors supporting buildability assessment implementation in construction between clients and consulting and contracting construction organisations in Nigeria.

The findings provide in-depth insight of the factors supporting the implementation of buildability assessment in construction that can help principal stakeholders in construction to facilitate development of strategies required in supporting the adoption and implementation of buildability assessment tool for buildability improvement.

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Factors supporting the implementation of buildability assessment as a tool for buildability improvement10.1108/JEDT-12-2021-0738Journal of Engineering, Design and Technology2022-03-25© 2022 Emerald Publishing LimitedInnocent Chigozie OsuizugboKevin Chuks OkolieOlalekan Shamsideen OshodiJournal of Engineering, Design and Technologyahead-of-printahead-of-print2022-03-2510.1108/JEDT-12-2021-0738https://www.emerald.com/insight/content/doi/10.1108/JEDT-12-2021-0738/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2022 Emerald Publishing Limited
Identification of critical factors for big data analytics implementation in sustainable supply chain in emerging economieshttps://www.emerald.com/insight/content/doi/10.1108/JEDT-12-2021-0739/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestThe advancements in internet technologies and the use of sophisticated digital devices in supply chain operations incessantly generate enormous amounts of data, which is termed as big data (BD). The BD technologies have brought about a paradigm shift in the supply chain decision-making towards profitability and sustainability. The aim of this work is to address the issue of implementation of the big data analytics (BDA) in sustainable supply chain management (SSCM) by identifying the relevant factors and developing a structural model for this purpose. Through a comprehensive literature review and experts’ opinion, the crucial factors are found using the PESTEL framework, which covers political, economic, social, technological, environmental and legal factors. The structural model is developed based on the results of the total interpretive structural modelling (TISM) procedure and MICMAC analysis. The policy support regarding IT, culture of data-based decision-making, inappropriate selection of BDA technologies and the laws related to data security and privacy are found to affect most of the other factors. Also, the company’s vision towards environmental performance and willingness for material and energy optimization are found to be crucial for the environmental and social sustainability of the supply chain. The study is focused on the manufacturing supply chain in emerging economies. It may be extended to other industry sectors and geographical areas. Also, additional factors may be included to make the model more robust. The proposed model imparts an understanding of the relative importance and interrelationship of factors. This may be useful to managers to assess their strengths and weaknesses and ascertain their priorities in the context of their organization for developing a suitable investment plan. The study establishes the importance of BDA for conservation and management of energy and material. This is crucial to develop strategies for enhancing eco-efficiency of the supply chain, which in turn enhances the economic returns for the society. This study addresses the implementation of BDA in SSCM in the context of emerging economies. It uses the PESTEL framework for identifying the factors, which is a comprehensive framework for strategic planning and decision-making. This study makes use of the TISM methodology for model development and deliberates on the social and environmental implications too, apart from theoretical and managerial implications.Identification of critical factors for big data analytics implementation in sustainable supply chain in emerging economies
Prashant Jain, Dhanraj P. Tambuskar, Vaibhav Narwane
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

The advancements in internet technologies and the use of sophisticated digital devices in supply chain operations incessantly generate enormous amounts of data, which is termed as big data (BD). The BD technologies have brought about a paradigm shift in the supply chain decision-making towards profitability and sustainability. The aim of this work is to address the issue of implementation of the big data analytics (BDA) in sustainable supply chain management (SSCM) by identifying the relevant factors and developing a structural model for this purpose.

Through a comprehensive literature review and experts’ opinion, the crucial factors are found using the PESTEL framework, which covers political, economic, social, technological, environmental and legal factors. The structural model is developed based on the results of the total interpretive structural modelling (TISM) procedure and MICMAC analysis.

The policy support regarding IT, culture of data-based decision-making, inappropriate selection of BDA technologies and the laws related to data security and privacy are found to affect most of the other factors. Also, the company’s vision towards environmental performance and willingness for material and energy optimization are found to be crucial for the environmental and social sustainability of the supply chain.

The study is focused on the manufacturing supply chain in emerging economies. It may be extended to other industry sectors and geographical areas. Also, additional factors may be included to make the model more robust.

The proposed model imparts an understanding of the relative importance and interrelationship of factors. This may be useful to managers to assess their strengths and weaknesses and ascertain their priorities in the context of their organization for developing a suitable investment plan.

The study establishes the importance of BDA for conservation and management of energy and material. This is crucial to develop strategies for enhancing eco-efficiency of the supply chain, which in turn enhances the economic returns for the society.

This study addresses the implementation of BDA in SSCM in the context of emerging economies. It uses the PESTEL framework for identifying the factors, which is a comprehensive framework for strategic planning and decision-making. This study makes use of the TISM methodology for model development and deliberates on the social and environmental implications too, apart from theoretical and managerial implications.

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Identification of critical factors for big data analytics implementation in sustainable supply chain in emerging economies10.1108/JEDT-12-2021-0739Journal of Engineering, Design and Technology2022-04-18© 2022 Emerald Publishing LimitedPrashant JainDhanraj P. TambuskarVaibhav NarwaneJournal of Engineering, Design and Technologyahead-of-printahead-of-print2022-04-1810.1108/JEDT-12-2021-0739https://www.emerald.com/insight/content/doi/10.1108/JEDT-12-2021-0739/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2022 Emerald Publishing Limited
Infrastructure design stage considerations for environmental sustainability in Zambiahttps://www.emerald.com/insight/content/doi/10.1108/JEDT-12-2021-0742/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestWhile previous studies have highlighted the importance of incorporating environmental sustainability in building designs, there is a paucity of studies that assess the extent to which design teams in developing countries consider environmental sustainability at the building design stage. Therefore, using Zambia as a case study, this study examined the extent to which infrastructure design teams in a developing country consider environmental sustainability at the design stage. The study used a qualitative research approach using structured interviews because there are hardly any studies which have explored the extent to which designers incorporate environmental sustainability in infrastructure designs in developing countries. The data is analysed thematically using the ATLAS.ti software. The results show that environmental sustainability is not an important design consideration because it is secondary to functional, technical and aesthetic considerations. Environmental considerations are also made in an ad hoc manner and when it is cost-effective for the project. Regulatory requirements pertaining to environmental protection are adhered to without any cost considerations. It was, therefore, theorised that building design teams in developing countries make technical, functional and aesthetic consideration during the infrastructure design stage ahead of environmental considerations. There is a paucity of studies that have investigated whether building infrastructure designers consider issues of environmental sustainability at the design stage in developing countries. The findings have practical implications on how developing countries can foster environmental sustainability at the design stage and avoid generating a building infrastructure stock that will require environmental resilience adaptation in the future.Infrastructure design stage considerations for environmental sustainability in Zambia
Ephraim Zulu, Sambo Lyson Zulu, Mwansa Chabala, Neema Kavishe, Charles Chifunda, Innocent Musonda
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

While previous studies have highlighted the importance of incorporating environmental sustainability in building designs, there is a paucity of studies that assess the extent to which design teams in developing countries consider environmental sustainability at the building design stage. Therefore, using Zambia as a case study, this study examined the extent to which infrastructure design teams in a developing country consider environmental sustainability at the design stage.

The study used a qualitative research approach using structured interviews because there are hardly any studies which have explored the extent to which designers incorporate environmental sustainability in infrastructure designs in developing countries. The data is analysed thematically using the ATLAS.ti software.

The results show that environmental sustainability is not an important design consideration because it is secondary to functional, technical and aesthetic considerations. Environmental considerations are also made in an ad hoc manner and when it is cost-effective for the project. Regulatory requirements pertaining to environmental protection are adhered to without any cost considerations. It was, therefore, theorised that building design teams in developing countries make technical, functional and aesthetic consideration during the infrastructure design stage ahead of environmental considerations.

There is a paucity of studies that have investigated whether building infrastructure designers consider issues of environmental sustainability at the design stage in developing countries. The findings have practical implications on how developing countries can foster environmental sustainability at the design stage and avoid generating a building infrastructure stock that will require environmental resilience adaptation in the future.

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Infrastructure design stage considerations for environmental sustainability in Zambia10.1108/JEDT-12-2021-0742Journal of Engineering, Design and Technology2022-03-15© 2020 Emerald Publishing LimitedEphraim ZuluSambo Lyson ZuluMwansa ChabalaNeema KavisheCharles ChifundaInnocent MusondaJournal of Engineering, Design and Technologyahead-of-printahead-of-print2022-03-1510.1108/JEDT-12-2021-0742https://www.emerald.com/insight/content/doi/10.1108/JEDT-12-2021-0742/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2020 Emerald Publishing Limited
Properties of mortar containing Phragmites Australis Ashhttps://www.emerald.com/insight/content/doi/10.1108/JEDT-12-2022-0610/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestThe purpose of this paper is to examine the use of phragmites australis ash (PAA) in cementitious systems to achieve sustainable construction. In this paper, the properties of mortar containing PAA as partial cement replacement are determined. The PAA is produced through slow burning in a closed system to minimize the CO2 emission. A total of four mortar mixes are prepared with PAA replacement levels ranging from 0% to 30% by weight. The water to binder and the proportions of binder to sand are 0.55 and 1:3 by weight, respectively. The properties tested are density, compressive strength, flexural strength, ultrasonic pulse velocity, water absorption by total immersion and capillary rise. Testing is conducted at 1, 7, 28 and 90 days. While there is a decrease in strength as the amount of PAA increases, there is strong indication of pozzolanic reaction in the presence of PAA. This is in agreement with the results reported by Salvo et al. (2015), where they found noticeable pozzolanic activities in the presence of straw ash, which is rich in SiO2 and relatively high K2O content. At 90 days of curing, there is a decrease of 5% in compressive strength at 10% PAA replacement. However, at 20% and 30% replacement, the reduction in compressive strength is 23% and 32%, respectively. The trend in flexural strength and ultrasonic pulse velocity is similar to that in compressive strength. The water absorption by total immersion and capillary rise tends to increase with increasing amounts of PAA in the mix. There seems to be a linear relationship between water absorption and compressive strength at each curing age. The Phragmites australis plant used in this investigation is obtained from one location and this present a limitation as the type of soil may change the properties. Also one method of slow burning is used. Different burning methods may alter the composition of the PAA. This outcome of this research will contribute towards sustainable development as it will make use of the waste generated, reduce the amount of energy-intensive cement used in construction and help generate local employment in the area where the Phragmites australis plant grows. To the best knowledge of the authors, the ash from the Phragmites australis plant has not been used in cementitious system and this research can be considered original as it examines the properties of mortar containing PAA. Also, the process of burning in a closed system using this material.Properties of mortar containing Phragmites Australis Ash
Jamal Khatib, Lelian ElKhatib, Joseph Assaad, Adel El Kordi
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

The purpose of this paper is to examine the use of phragmites australis ash (PAA) in cementitious systems to achieve sustainable construction.

In this paper, the properties of mortar containing PAA as partial cement replacement are determined. The PAA is produced through slow burning in a closed system to minimize the CO2 emission. A total of four mortar mixes are prepared with PAA replacement levels ranging from 0% to 30% by weight. The water to binder and the proportions of binder to sand are 0.55 and 1:3 by weight, respectively. The properties tested are density, compressive strength, flexural strength, ultrasonic pulse velocity, water absorption by total immersion and capillary rise. Testing is conducted at 1, 7, 28 and 90 days.

While there is a decrease in strength as the amount of PAA increases, there is strong indication of pozzolanic reaction in the presence of PAA. This is in agreement with the results reported by Salvo et al. (2015), where they found noticeable pozzolanic activities in the presence of straw ash, which is rich in SiO2 and relatively high K2O content. At 90 days of curing, there is a decrease of 5% in compressive strength at 10% PAA replacement. However, at 20% and 30% replacement, the reduction in compressive strength is 23% and 32%, respectively. The trend in flexural strength and ultrasonic pulse velocity is similar to that in compressive strength. The water absorption by total immersion and capillary rise tends to increase with increasing amounts of PAA in the mix. There seems to be a linear relationship between water absorption and compressive strength at each curing age.

The Phragmites australis plant used in this investigation is obtained from one location and this present a limitation as the type of soil may change the properties. Also one method of slow burning is used. Different burning methods may alter the composition of the PAA.

This outcome of this research will contribute towards sustainable development as it will make use of the waste generated, reduce the amount of energy-intensive cement used in construction and help generate local employment in the area where the Phragmites australis plant grows.

To the best knowledge of the authors, the ash from the Phragmites australis plant has not been used in cementitious system and this research can be considered original as it examines the properties of mortar containing PAA. Also, the process of burning in a closed system using this material.

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Properties of mortar containing Phragmites Australis Ash10.1108/JEDT-12-2022-0610Journal of Engineering, Design and Technology2023-08-22© 2023 Emerald Publishing LimitedJamal KhatibLelian ElKhatibJoseph AssaadAdel El KordiJournal of Engineering, Design and Technologyahead-of-printahead-of-print2023-08-2210.1108/JEDT-12-2022-0610https://www.emerald.com/insight/content/doi/10.1108/JEDT-12-2022-0610/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2023 Emerald Publishing Limited
Designing multivariable PI controller with multi-response optimization for a pilot plant binary distillation column: a robust design approachhttps://www.emerald.com/insight/content/doi/10.1108/JEDT-12-2022-0616/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatestThe purpose of this paper is to propose and validate a robust industrial control system. The aim is to design a Multivariable Proportional Integral controller that accommodates multiple responses while considering the process's control and noise parameters. In addition, this paper intended to develop a multidisciplinary approach by combining computational science, control engineering and statistical methodologies to ensure a resilient process with the best use of available resources. Taguchi's robust design methodology and multi-response optimisation approaches are adopted to meet the research aims. Two-Input-Two-Output transfer function model of the distillation column system is investigated. In designing the control system, the Steady State Gain Matrix and process factors such as time constant (t) and time delay (?) are also used. The unique methodology is implemented and validated using the pilot plant's distillation column. To determine the robustness of the proposed control system, a simulation study, statistical analysis and real-time experimentation are conducted. In addition, the outcomes are compared to different control algorithms. Research indicates that integral control parameters (Ki) affect outputs substantially more than proportional control parameters (Kp). The results of this paper show that control and noise parameters must be considered to make the control system robust. In addition, Taguchi's approach, in conjunction with multi-response optimisation, ensures robust controller design with optimal use of resources. Eventually, this research shows that the best outcomes for all the performance indices are achieved when Kp11 = 1.6859, Kp12 = −2.061, Kp21 = 3.1846, Kp22 = −1.2176, Ki11 = 1.0628, Ki12 = −1.2989, Ki21 = 2.454 and Ki22 = −0.7676. This paper provides a step-by-step strategy for designing and validating a multi-response control system that accommodates controllable and uncontrollable parameters (noise parameters). The methodology can be used in any industrial Multi-Input-Multi-Output system to ensure process robustness. In addition, this paper proposes a multidisciplinary approach to industrial controller design that academics and industry can refine and improve.Designing multivariable PI controller with multi-response optimization for a pilot plant binary distillation column: a robust design approach
Vinayambika S. Bhat, Thirunavukkarasu Indiran, Shanmuga Priya Selvanathan, Shreeranga Bhat
Journal of Engineering, Design and Technology, Vol. ahead-of-print, No. ahead-of-print, pp.-

The purpose of this paper is to propose and validate a robust industrial control system. The aim is to design a Multivariable Proportional Integral controller that accommodates multiple responses while considering the process's control and noise parameters. In addition, this paper intended to develop a multidisciplinary approach by combining computational science, control engineering and statistical methodologies to ensure a resilient process with the best use of available resources.

Taguchi's robust design methodology and multi-response optimisation approaches are adopted to meet the research aims. Two-Input-Two-Output transfer function model of the distillation column system is investigated. In designing the control system, the Steady State Gain Matrix and process factors such as time constant (t) and time delay (?) are also used. The unique methodology is implemented and validated using the pilot plant's distillation column. To determine the robustness of the proposed control system, a simulation study, statistical analysis and real-time experimentation are conducted. In addition, the outcomes are compared to different control algorithms.

Research indicates that integral control parameters (Ki) affect outputs substantially more than proportional control parameters (Kp). The results of this paper show that control and noise parameters must be considered to make the control system robust. In addition, Taguchi's approach, in conjunction with multi-response optimisation, ensures robust controller design with optimal use of resources. Eventually, this research shows that the best outcomes for all the performance indices are achieved when Kp11 = 1.6859, Kp12 = −2.061, Kp21 = 3.1846, Kp22 = −1.2176, Ki11 = 1.0628, Ki12 = −1.2989, Ki21 = 2.454 and Ki22 = −0.7676.

This paper provides a step-by-step strategy for designing and validating a multi-response control system that accommodates controllable and uncontrollable parameters (noise parameters). The methodology can be used in any industrial Multi-Input-Multi-Output system to ensure process robustness. In addition, this paper proposes a multidisciplinary approach to industrial controller design that academics and industry can refine and improve.

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Designing multivariable PI controller with multi-response optimization for a pilot plant binary distillation column: a robust design approach10.1108/JEDT-12-2022-0616Journal of Engineering, Design and Technology2023-07-07© 2023 Emerald Publishing LimitedVinayambika S. BhatThirunavukkarasu IndiranShanmuga Priya SelvanathanShreeranga BhatJournal of Engineering, Design and Technologyahead-of-printahead-of-print2023-07-0710.1108/JEDT-12-2022-0616https://www.emerald.com/insight/content/doi/10.1108/JEDT-12-2022-0616/full/html?utm_source=rss&utm_medium=feed&utm_campaign=rss_journalLatest© 2023 Emerald Publishing Limited