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Digital maps have been used in vehicles since 1985, primarily for navigation and driver guidance. A natural evolution in Advanced Driver Information Systems (ADIS) is the development of a variety of in-car computer application programs that will run on a reconfigurable display. Navigation will be one of the most -- if not the most -- significant menu item, along with such offerings as: business listings; tourist attractions; a personal database and dialing directory; and stored and real-time diagnostics information. These in turn will be augmented by other Intelligent Vehicle/Highway System (IVHS) services, such as real-time traffic and weather reporting [1]. The integration of business listings with a digital map, and presentation of this amalgamated information to the driver is an important first step in the evolution of ADIS.

Inexpensive vehicle navigation systems have recently become available which allow drivers to quickly and easily drive to unfamiliar destinations. Beyond the proven utility of these invehicle systems in stand-alone applications, these systems may prove to be vital elements of fleet management systems. This paper describes a standalone vehicle navigation system and its application to fleet management systems.