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原文传递 RURAL TRANSIT TRAVELER DEVELOPMENTS IN ITS.

题名：	RURAL TRANSIT TRAVELER DEVELOPMENTS IN ITS.
作者：	James-RD; Siddiqi-ZA
关键词：	RURAL-TRANSIT; PUBLIC-TRANSIT; TRAVELER-BENEFITS; INTELLIGENT-TRANSPORTATION-SYSTEMS; RURAL-AREAS; OPERATIONAL-TEST-AND-EVALUATION; BUS-STOPS; BUB-TRANSPORTATION; GLOBAL-POSITIONING-SYSTEMS; AUTOMATIC-VEHICLE-LOCATION; TWO-WAY-COMMUNICATION; RADIO-COMMUNICATIONS; DATA-BASES; PERSONAL-COMPUTERS; ESTIMATED-TIME-OF-ARRIVAL; RADIO-TRANSMISSION; INTERNET-
摘要：	The key to increasing ridership on public transit systems is to provide a pleasurable and convenient mode of transportation to its patrons. Not knowing the exact time of bus arrival at a stop usually adds to the inconvenience of having to wait in the elements. Providing up to date information on a bus's status can greatly reduce the anxiety most people feel at a transit stop. Providing this information at the stop, or through other suitable means, may greatly enhance the attraction of using the transit system. One such operational test is being conducted by the Center for Transportation Research at Virginia Tech and Blacksburg Transit (BT) to gauge the impact of providing up to date vehicle information to the rural transit traveler. The project started in early August 1996 and will span 18 months until completion. The community of Blacksburg makes for an ideal test ground for a transit operational test. The presence of a huge college population in a rural setting creates transit issues that mirror those of an urban center. At the same time, the population density of Blacksburg reflects a rural setting. The initial operational test calls for equipping 36 BT vehicles with GPS/AVL equipment. The equipment to be installed on the vehicles consists of a GPS receiver, a Vehicle Module (VM) and a two-way radio. The position signal from the satellites is acquired by the GPS receiver and transferred to the VM. The VM modulates this location information and transfers it to the base station using the two-way radio. At the base station, this signal is demodulated by the Base-Station Module and the location information is made available in a MS Access, database. The base station consists of a two-way radio, Base Station Module (BSM) and a couple of Personal Computers (PCs). One of the PCs controls the communications link between the VM and the BSM, while the other PC acts as a data processor and a server for the Internet connection. The vehicles are polled to determine their status. That is, the base station sends out a poll signal on a predetermined RF channel and only the polled vehicle responds. The location data from the vehicles is compiled in the Access database on one of the PCs. The ETA of each vehicle at a bus stop is calculated using historic data and reduction algorithms. This ETA information is then available to be accessed by the general public through the Internet, Audiotex, kiosk, cable TV and displays at the bus stops. The Internet web page will reside at the server and can be updated using the ETA database. An audiotex card will be installed in the PC that can be accessed through a dial-in line. The ETA information will also be sent to a local FM station to be transmitted on t`600
总页数：	Conference Title: Merging the Transportation and Communications Revolutions. Abstracts for ITS America Seventh Annual Meeting and Exposition. Location: Washington, D.C. Sponsored by: ITS America. Held: 19970602-19970605. 1997. pp13
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