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국내 회전교차로 활성화를 위한 적정교통량 산정에 관한 연구

A Study on Appropriate Traffic Volume Calculation for Revitalizing Roundabout Installation

  • 이동민 (서울시립대학교 교통공학과) ;
  • 유정호 (고양시 교통정책과)
  • Lee, Dongmin (Department of Transportation Engineering, University of Seoul) ;
  • You, Jungho (Department of Transportation, Goyang City)
  • 투고 : 2012.01.20
  • 심사 : 2013.11.08
  • 발행 : 2013.12.31

초록

회전교차로는 교차로 중앙의 원형교통섬을 우회하며 교차로를 통과하고, 진입차량이 회전차량에게 양보하는 방식으로 운영되는 교차로 유형이다. 회전교차로는 교통운영 및 안전측면에서 다른 교차로 유형에 비해 효율적인 것으로 알려져 있다. 최근 국내에서는 매년 약 100여개의 회전교차로가 전국적으로 시범 설치 운영되어 모니터링 되고 있다. 본 연구에서는 교차로 분석용 교통시뮬레이션 프로그램임 SIDRA를 이용하여 교통류 조건에 따라 회전교차로 계획, 및 설계하기 위한 평면교차로 유형별 적정 교통량 기준을 마련하였다. 교통시뮬레이션 분석결과 방향별로 진입교통량이 100-150대/시 이상인 1차로 비신호교차로(TWSC, AWSC)와 진입교통량이 400-500대/시 이하인 신호교차로 경우에는 회전교차로 전환에 따라 교통운영 효율화를 기대할 수 있는 것으로 분석되었다. 또한, 좌회전 교통류율이 30%가 넘는 교차로에서는 회전교차로 보다는 신호교차로를 설치함이 바람직한 것으로 분석되었다. 이와 같은 회전교차로의 적정교통량 수준 산정결과는 회전교차로 도입의 적절한 위치 선정에 도움에 되어 회전교차로 활성화에 많은 도움이 될 수 있을 것으로 기대한다.

A roundabout is a form of circular intersection in which traffic travels counterclockwise around a central island and in which entering traffic must yield to circulating traffic. It has been known that a roundabout provides substantially better operational and safety characteristics than other intersections including rotaries. Recently, a roundabout has started to be constructed due to its efficiency, safety, and other advantages of a roundabout comparing other intersections in Korea. However, there has been no guideline to be used to decide appropriate intersection types considering given conditions of the intersections. To solve this problem, the guideline with traffic volume to choose the suitable intersection types was developed based on analysis results using the SIDRA software which is generally used to analyze operational effects of roundabouts. It was found that a roundabout is more efficient than signalized intersection when the traffic volume is between 125 and 450 veh/h on one lane road and roundabout is not recommended when there are more than 30% left turn traffic. The optimal traffic volume provided in this research will be usefully used in planing and designing roundabouts in Korea.

키워드

참고문헌

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피인용 문헌

  1. An Estimation of the Minimum Distance Between a Roundabout and Signal Crosswalk Using VISSIM vol.33, pp.4, 2015, https://doi.org/10.7470/jkst.2015.33.4.337
  2. Traffic Volume Criteria for Roundabouts Based on Left-Turn Ratio vol.15, pp.4, 2016, https://doi.org/10.12815/kits.2016.15.4.054
  3. Operational Effects of Special Roundabouts at Large-Scale Rotaries vol.18, pp.1, 2016, https://doi.org/10.7855/IJHE.2016.18.1.109
  4. Comparative Study of Two Measures of Traffic Flow Effectiveness at Roundabouts and Signalized Intersections vol.18, pp.3, 2016, https://doi.org/10.7855/IJHE.2016.18.3.095
  5. Evaluation of the Rain Effects on Gap Acceptance Behavior at Roundabouts by a Logit Model vol.2018, pp.2042-3195, 2018, https://doi.org/10.1155/2018/2726732
  6. 회전교차로 서비스수준 분석을 위한 모형개발 및 포화도 산정 연구 vol.39, pp.6, 2013, https://doi.org/10.12652/ksce.2019.39.6.0869