2003 年 11 巻 1 号 p. 81-89
Understanding travel behavior is essential for urban transportation planning. This paper presents the development of a GIS-based system for understanding individual travel behavior under space-time constraints and its application to the graduate class of environmental information system in spatial planning and policy. Required input data consist of activity schedules, transportation networks and activity opportunities. Potential Path Area (PPA) and the feasibility of participating in activities in space-time prisms can be simulated and represented on GIS, before and after changing constraints. The system is very useful for students to understand activity-travel behavior in urban space.