A MODELLING FRAMEWORK FOR THE DESIGN OF SUSTAINABLE INTEGRATED TRANSIT SYSTEMS: THE CASE STUDY OF CAMPANIA REGION (ITALY)

The paper proposes a general methodology, applicable to different geographical contexts, for the design of sustainable integrated transit systems (including the minimal transit services definition) through transit market share optimization. The difficulty of this approach is to define proper network design methodologies for an effective maximization of the market share of public transport, that is finding the optimal mix of possible actions (increase in service frequency, new stations, enhanced feeder bus lines and so on). For this aim, the modeling part of the DSS is firstly described and then the network design methodology (including all heuristics adopted for overcoming computationally unfeasible network design procedures) is proposed. Finally, the DSS is applied to some test sites within Campania region (Italy), from the crowded metropolitan area of Napoli to the scarce demand area of countryside towns, by adapting to the specific test site both actions and methodology.