한국ITS학회 논문지 (The Journal of The Korea Institute of Intelligent Transport Systems)
- 제1권1호
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- Pages.41-51
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- 2002
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- 1738-0774(pISSN)
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- 2384-1729(eISSN)
지점검지체계를 이용한 남산1호터널 구간통행시간 추정
The Estimation of Link Travel Time for the Namsan Tunnel #1 using Vehicle Detectors
초록
지능형교통체계의 핵심적인 부분으로써 첨단교통정보체계가 제 역할을 효율적으로 수행하기 위해서는 실시간으로 교통정보제공을 위해 도로에 설치된 각종 정보수집체계들로부터 수집된 정보를 적절히 처리하여 정확하고 신속하게 통행시간 변화를 파악하고 산출하는 것은 무엇보다도 중요하다. 현재 구간통행시간은 Beacon, GPS, AVI 등을 이용한 구간검지체계나 Loop 검지기, 영상검지기, RTMS 등을 이용한 지점검지체계로부터 산출
As Advanced Traveler Information System(ATIS) is the kernel of the Intelligent Transportation System, it is very important how to manage data from traffic information collectors on a road and have at borough grip of the travel time's change quickly and exactly for doing its part. Link travel time can be obtained by two method. One is measured by area detection systems and the other is estimated by point detection systems. Measured travel time by area detection systems has the limitation for real time information because it Is calculated by the probe which has already passed through the link. Estimated travel time by point detection systems is calculated by the data on the same time of each. section, this is, it use the characteristic of the various cars of each section to estimate travel time. For this reason, it has the difference with real travel time. In this study, Artificial Neural Networks is used for estimating link travel time concerned about the relationship with vehicle detector data and link travel time. The method of estimating link travel time are classified according to the kind of input data and the Absolute value of error between the estimated and the real are distributed within 5