Modeling intermodal networks with public transport and vehicle sharing systems

This paper extends a schedule-based transit assignment model to integrate vehicle sharing systems (VSS) with or without fixed stations permitting one-way rentals. It is assumed that travelers receive information through mobile internet on vehicle location and availability and that they can use a real-time booking service. The proposed model extends the functionality of a scheduled-based transit assignment in two ways: (1) It generates intermodal route choice sets combining transit and non-transit trip legs. This functionality enables an accessibility analysis to identify od-pairs benefiting from VSS. (2) It distributes a given travel demand on the route choice set considering capacity constraints of VSS. This functionality can be applied for an impact analysis of a proposed VSS.