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해석적 방법을 이용한 능동식 트램 우선신호의 신호시간 및 교차로 대기시간 산정 모형

Signal Timing and Intersection Waiting Time Calculation Model using Analytical Method for Active Tram Signal Priority

  • 정영제 (도로교통공단 교통과학연구원) ;
  • 정준하 (도로교통공단 교통과학연구원) ;
  • 주두환 (도로교통공단 교통과학연구원) ;
  • 이호원 (도로교통공단 교통과학연구원) ;
  • 허낙원 (도로교통공단 교통과학연구원)
  • Jeong, Youngje (Traffic Science Institute, Korea Road Traffic Authority) ;
  • Jeong, Jun Ha (Traffic Science Institute, Korea Road Traffic Authority) ;
  • Joo, Doo Hwan (Traffic Science Institute, Korea Road Traffic Authority) ;
  • Lee, Ho Won (Traffic Science Institute, Korea Road Traffic Authority) ;
  • Heo, Nak Won (Traffic Science Institute, Korea Road Traffic Authority)
  • 투고 : 2014.04.22
  • 심사 : 2014.06.24
  • 발행 : 2014.08.31

초록

본 연구에서는 트램의 능동식 우선신호를 위해 해석적 방법을 이용하여 신호시간 및 트램의 교차로 대기시간을 산정하기 위한 모형을 제시하였다. 본 모형을 통해 상류부 검지기에서 트램이 검지된 시간을 기준으로 능동형 우선 신호 기법 중 Early Green 및 Green Extension을 위한 신호시간을 결정할 수 있다. 또한 본 모형은 트램 통행의 관점에서 트램의 교차로 지체를 의미하는 트램의 교차로 대기시간을 산정할 수 있다. 우선신호의 구동환경에서 비우선 현시의 잔여녹색시간에서 우선현시의 추가녹색시간을 제공하게 되며, 트램은 비우선현시의 최소녹색시간 동안 교차로에서 대기하게된다. 본 모형에서는 우선신호의 신호시간 및 트램의 교차로 대기시간을 해석적 방법으로 모형화하였다. 독립교차로를 대상으로 하는 사례분석에서는 120초의 주기길이에 비우선현시의 여유녹색시간을 44초에서 10초까지 적용하여 트램의 평균 교차로 대기시간이 12.7초에서 29.4초까지 산정됨을 확인하였다.

This research suggests a new tram signal priority model which determines signal timings and tram intersection waiting time using analytical method. This model can calculate the signal timings for Early Green and Green Extension among the active tram signal priority techniques by tram detection time of upstream detector. Moreover, it can determine the tram intersection waiting time that means tram intersection travel time delay from a vantage point of tram travel. Under the active tram signal priority condition, priority phases can bring additional green time from variable green time of non-priority phases. In this study, the signal timing and tram intersection waiting time calculation model was set up using analytical methods. In case studies using an isolated intersection, this study checks tram intersection waiting time ranged 12.7 to 29.4 seconds when variable green times of non-priority phases are 44 to 10 seconds under 120 seconds of cycle length.

키워드

참고문헌

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피인용 문헌

  1. Signal Timing Calculation Model of Transit Signal Priority using Shockwave Theory vol.35, pp.4, 2015, https://doi.org/10.12652/Ksce.2015.35.4.0897