KSCE Journal of Civil and Environmental Engineering Research (대한토목학회논문집)

Korean Society of Civil Engeneers (대한토목학회)
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Development and Evaluation of Smart Roundabout Using Connected Vehicle

Connected Vehicle을 이용한 Smart Roundabout의 개발과 평가

  • Received : 2013.10.08
  • Accepted : 2013.11.12
  • Published : 2014.02.01
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Abstract

Modern roundabouts referred to as relatively safer and more efficient traffic facility than the signalized intersections have been recently deployed and operated and accordingly more research efforts to improve its safety and efficiency have been made so far. This paper introduces a new traffic information system named as Smart Roundabout coupled with Connected Vehicle technique like Vehicle-to-Roadside communication, which has not been attempted before and evaluates its performance with a microscopic simulation model, VISSIM. The proposed system functions to collect driving information of circulating vehicles in the roundabout such as location, speed, critical headway, etc. and help approaching vehicles decide whether to enter the roundabout with an on-board equipment instrumented in the individual vehicle on the basis of calculated gap acceptance of interest. This new system is expected to secure more safety and increase the capacity of the modern roundabout.

기존의 신호교차로에 비해 상대적으로 효율적이고 안전한 것으로 평가되고 있는 회전교차로(roundabout)가 최근 전국적으로 설치 운영 중에 있으며 이에 따라 회전교차로의 효율성과 안전성을 개선하기 위한 다양한 연구가 수행 중에 있다. 본 연구에서는 현재까지 시도된 적이 없는 회전교차로와 커넥티드 차량(connected vehicle) 기법의 접목을 통해 Smart Roundabout이라는 새로운 개념의 첨단교통정보시스템을 개발하고 미시적 시뮬레이션을 이용하여 평가하고자 한다. Smart Roundabout은 교차로를 회전하는 차량에 장착된 단말기(on-board equipment, OBE)를 통해 차량들의 주행정보(위치, 속도, 차두시간 등)를 커넥티드 차량(connected vehicle) 기법을 통해 전달받고 회전교차로에 접근하는 차량 내부의 단말기를 통해 교차로 진입에 대한 상환판단을 도와 안전성을 확보함과 동시에 보다 짧은 차두시간(critical headway)을 구현하여 회전교차로의 용량을 증대시킬 수 있을 것으로 기대된다.

Keywords

References

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