An urban regeneration model in heritage areas in search of sustainable urban development and internal cohesion

The purpose of this paper is to provide an analysis and an optimization model of the spatial impact for the externalities derived from urban regeneration and rehabilitation of degraded and segregated historic heritage areas.

From the amount invested and state intervention locations, an impact index is put forward. The spatial distribution of these impact indexes in the interventions' area of influence will be the basis for the analysis. Hence, by setting some specific objectives of the decision agent about this distribution homogeneity, and with the aim of avoiding inner segregation and to facilitate the sustainable urban development and cohesion of the neighborhood as a whole, a model which will allow the allocation of the budget available among the different locations fixed a priori is proposed.

It is found that by comparing the spatial distributions of impact indexes obtained in both situations, a measure of the urban regeneration and rehabilitation process and its impact can be obtained.

In order to favour the neighborhoods' internal cohesion and to avoid inner segregation, the model enables one to better address priority areas of intervention inside a historic heritage urban area and to better achieve sustainable urbanization by providing a more equitable and efficient managing of resources.