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논문 기본 정보

자료유형
학술저널
저자정보
저널정보
대한교통학회 대한교통학회지 대한교통학회지 제13권 제1호
발행연도
1995.3
수록면
5 - 33 (29page)

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This paper addresses the outlines of the traffic signal timing principles engaged in TRACS and the results of field test. Research team, encompassing research institute, university, and electronic company, conducted the three-year project for developing the new system, named TRACS(TRaffic Adaptive Control System). The project was successfully completed in 1994. TRACS aims at accomplishing the objectives of better traffic adaptability and more reliable travel time prediction. TRACS operates in real-time adjusting signal timings throughout the system in response to variations in traffic demand and system capacity. The purpose of TRACS is to control traffic on an area basis rather than on an isolated intersection basis. An other purpose of TRACS is to provide real-time road traffic information such as volume, speed, delay, travel time, and so on. The performance of the first version of TRACS was compared to the conventional TOD control through field test. The test result was promising in that TRACS consistantly outperformed the conventional control method. The change of signal timing reacted timely to the variation of traffic demand. Extensive operational test of TRACS will be conducted this year, and some functions will be enhanced.

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