A DSS for tactical planning of intercity railway services

摘要

This paper presents a large Decision Support Systemfor the operational planning of rail services named SASM, recently developed by the Italian Railways company "Ferrovie dello Stato". The first part of the paper describes shortly the basic functionalities of the DSS. The second part of the paper describes, the demand model based on a tree-logit service/run/class choice model that explicitly takes into account the desired departure/arrival time; the supply model based on a diachronic (spatial-temporal) network representation of scheduled services; the assignment model which is a Stochastic network Loading (SNL) model based on explicit (diachronic) path enumeration. At the end some applications of the model system to the Torino-Venezia rail corridor are reported.