ABSTRACT
This chapter examines the appropriate territorial unit of evaluation and planning more in depth. It discusses the form of the ‘urban mobility integrated basin’ (UMIB), the concept and operationality. Supply, from the point of view of spatial or territorial accessibility, is represented by the dislocation in the territory of those points that are represented as the ‘destinations’ of movements. The demand, again from the point of view of spatial or territorial accessibility, is represented by the dislocation in the territory of those points in which are placed the users of the opportunities-services. The analysis of the components of the accessibility system is completed with a reflection on the ‘relations’ that intervene between the several components of the system itself. The search for ‘maximum realism’ that people have posed in the modelling of the process of choice in the delimitation of the UMIB, requires the introduction of further specifications that are relative to the cost items and to the demand/supply relationship.
