Internet GIS-Based Activity-Travel Simulator for Investigating Alternative Activity-Travel Patterns

paper reports the development of an integrated system for data collection, analysis, representation and evaluation of individual activity-travel patterns, using GPS mobile phones and Web GIS technologies, and its application to travel feedback programs. A GPS mobile-phone-based survey system was developed to collect information on travel diaries and travel routes, which were used as an input to the Internet GIS-based activity-travel simulator. The simulator provided information on diagnostic indices and spatial movement of the current travel pattern and alternative travel patterns of different travel modes. Participants were able to compare the current travel pattern with alternative ones on the Web browser, investigating diagnostic indices and spatial movements on a map. The system was applied to the travel feedback program for the employees working in the Osaka Prefectural Government. The system, as a new communication tool of the travel feedback program, contributed to improving the participants' attitudes and to changing travel behavior towards decreasing car-use.

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