Design and realization of a multi-modal/multi-agency transit management and information system

In past work we described a system of components that are used to construct transit traveler information applications. In this paper we describe an ongoing project that uses the same component architecture to combine maps, schedules, and AVL information from four transit agencies. The result is a set of Web applications suitable for both transit management and traveler information. We describe both the technical and administrative challenges to be overcome in building a regional (10000 square miles) transit AVL and information system.