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原文传递 PERFORMANCE MEASUREMENT OF ALI-SCOUT AND RECOMMENDATIONS FOR ENHANCEMENT

题名：	PERFORMANCE MEASUREMENT OF ALI-SCOUT AND RECOMMENDATIONS FOR ENHANCEMENT
作者：	Ghassan E. Shahine
关键词：	PERFORMANCE; MEASUREMENT; ALI-SCOUT; RECOMMENDATIONS; ENHANCEMENT
摘要：	We evaluated the performance of Ali-Scout as part of FAST-TRAC (Faster and Safer Travel through Traffic Routing and Advanced Controls) Operational Field Test (OFT). The FAST-TRAC project is conducted in Southeast Michigan, and managed by the Road Commission of Oakland County (RCOC). Ali-Scout is a centralized beacon based navigation system. It provides turn-byturn directions to a destination selected by the driver. The directions seek to produce the fastest route between the origin and the destination. A Dynamic Route Guidance (DRG) system acquires timely information about recurrent and non-recurrent congestion. Therefore, a DRG system should reduce the commuters’ trip travel times including the expert ones. In addition a DRG system balances the traffic network through vehicles redistribution. Hence such systems tend to achieve both user and system optimality. This paper addresses the questions of designing adequate and practical field hardware and software that is essential to conducting a successful performance evaluation. In addition we selected specific vital performance criteria that would assess properly the performance of such system. These criteria targeted the overall system design that included the in-vehicle units, the roadside communication beacons, and the central computer system that is responsible for sending the dynamic data to the different beacons and receiving the current traffic network state. The ultimate goal was to assess the suitability of deployment of a beacon based DRG in the US. From the technical point view. This work is of particular value to people interested in introducing new products in the area of dynamic route guidance as it will put forward to them our experience in such area including the equipment setup, some of the pertinent performance measures, and makes them aware of many potential problems that may reduce the quality of their results. The major conclusions of our work are pointed out in this paper. From these results we were able to draw conclusions and propose recommendations for the next generation DRGs.
总页数：	ITS America. Meeting (9th : 1999 : Washington, D.C..). New thinking in transportation : conference proceedings. 1999. pp17
报告类型：	科技报告