摘要: |
ADVANCE, the Advanced Driver and Vehicle Advisory Navigation ConcEpt, is an Advanced Traveler Information System project. The in-vehicle portion of ADVANCE involved development and testing of a vehicle navigation system that utilized dynamic traffic information for a roadway network in the northwestern portions of Chicago and its suburbs. Seventy-five vehicles were instrumented with in-vehicle computers and radio communications equipment. Data inputs to the system included real time information from a variety of existing sources, such as, closed loop traffic signal systems, *999 (a cellular based motorist call-in system), the Illinois Department of Transportation Traffic Systems Center (which monitors operations on expressways in the Chicago area), IDOT's Communications Center (which communicates with the Minutemen, the motorist aid system), Northwest Central Dispatch (an area wide emergency dispatch system), etc. Another primary source of information, however, was the vehicles themselves acting as traffic probes. Drivers were recruited to utilize project provided vehicles in testing over a seven month period commencing in June 1995. Throughout 1996, ADVANCE underwent a detailed evaluation. The purpose of this paper is to summarize the results of the evaluation; highlight the lessons learned during the design and implementation of the project; and provide insights to others that are contemplating the implementation of an in-vehicle dynamic route guidance system. |