La mobilità come common ambientale: uno schema per la valutazione delle politiche

The debated issue of sustainable mobility, since the last thirty years, has become one of the main points on every decision-maker agenda. The idea proposed in this work is to redefine the resource "mobility" as a common good, which is produced by a collective action. In other words, the mobility of people and goods is both a structural aspect of the issue of the reconstruction of the environmental common and at the same time is a fundamental asset of social capital of a community of agents. In such way, the common good is socially constructed trough the system of rights related to its use, reproduction or destruction, generated by the relation-ship network between the agents. Analyzing the literature it seems that the debate is focused mainly on the regulation of concurrency under conditions of "external-ities" or market "failures", or the failure of the regulator, while seldom can be found a reflection over the strict linkage between structural generators (growing of the economic activities, demographic pressure, infrastructural weaknesses) and simultaneous failures both of the market and of the regulation policies.For this reasons, the aim of the work is the construction of fitted methodologies for the evaluation of policies of mobility, adopted by local level decision-maker, on a wide area scale. Trough an institutional framework capable to incorporate this social and iterated definition of the resource mobility, indicators capable of modelling a traffic jam in its subjective determinants are built, and several case studies are analyzed trough them to stress their reliability. The work is completed with an example of formalization of a mobility policy done with the proposed in-dicators.JEL Q01 D62 D85 L91 K23