A conceptual Multimodal Advanced Traveler Information System (MATIS) was developed on a Sun SPARC 10 workstation using the ARC/INFO GIS software platform. The primary components of the MATIS are the databases, the data-processing algorithms, and the user interface. The data-processing algorithms include route planning for private automobile, transit, and ride sharing. These algorithms are executed independently of each other in the present version of the system. The user interface allows the users to enter the input through customized menus that were developed using the ARC/INFO capabilities. The system can accept both subscribers, who have their individual profile in the system containing their travel characteristics for one or more of each subsystems, and nonsubscribers, who can enter at any time into the system and receive travel information from any of the subsystems. Any user can subscribe or unsubscribe to/from the system at any time. The design and the required input/output of MATIS are outlined, and future enhancements of the model are suggested.
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