CLASS: A city logistics analysis and simulation support system

The paper presents a City Logistics Analysis and Simulation support System (CLASS) for the identification of critical stages and the simulation of city logistics scenarios. The analysis of current scenario focuses on logistics and freight transport in relation to land use, freight restocking demand and supply, logistic profile and road network performances and impacts. The simulation is able to point out the relations existing among city logistics measures, decision-maker choice dimensions by using a multi-stage demand model and a discrete choice approach for each decision level. Among the outputs, the freight vehicle flows on the road network links allow to compute the link performances in terms of congestion, pollution and road accidents involving freight vehicles. An application of the support system to the freight restocking for the inner area of Rome is presented.