Abstract
One of the various Intelligent Transport System (ITS) projects is Parking Guidance and Information (PGI) system development. It assists a driver to park his/her car in the city center where available parking spaces are limited. In this study, the driver's parking searching behavior under PGI system was modeled first theoretically. Then the model was applied to the driver's parking behavior in Tama Center area. The resul is supported that the driver would choose a certain parking by weighting relative expected utility for each alternative parking facility under uncertainty. The model analysis also indicated that parking searching behavior was induced if the en-route parking choice proved worse than expected in city center, which implied en-route information is more important than one near the final destination.
