The role of evaluation tools in the urban policies for the development rights transfer/compensation: the isovalue maps for properties

This essay describes the most relevant steps of the urban system analysis procedure and of the isovalue maps compilation for the main urban functions, to prove the urgency of using these methods to reply to the increasing need for equity and liberalism that recently came out from the urban planning process in Italy, especially, after the acknowledgement of some “new” mechanisms in most of the regional legal orders: the so called “equity tools”. The regressive models results in the experimentation have shown that the isovalue maps could be a significant tool for several meanings in the public decision process, as it is a noteworthy estimation and evaluation method, that should be largely implemented and constantly reviewed and improved.