This paper reports on the development of a prototype GIS design to support network equilibrium-based travel demand models. An attempt is made to advance standard practice by presenting a generic GIS design that can effectively support a wide range of specifications within the network equilibrium modeling class. The design also enhances the data management and user accessibility features of GIS for travel demand modeling. A discussion of sequential vs. simultaneous estimation of the travel demand components is included, with special emphasis on the network equilibrium approach and database management issues. A prototype GIS design is detailed, and a brief review of the design goals and detailed discussions of how the design meets these objectives are provided. Conclusions are also given.
Samenvatting