The Journal of The Korea Institute of Intelligent Transport Systems (한국ITS학회 논문지)

The Korea Institute of Intelligent Transport Systems (한국ITS학회)
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Analysis of Rear-end Collision Risks Using Weigh-in-Motion Data

고속도로 Weigh-in-Motion(WIM) 이벤트 자료를 활용한 후미추돌 위험도 분석 기법

  • Oh, Min Soo (Dept. of Transportation and Logistics Eng., Hanyang University) ;
  • Park, Hyeon Jin (Dept. of Transportation and Logistics Eng., Hanyang University) ;
  • Oh, Cheol (Dept. of Transportation and Logistics Eng., Hanyang University) ;
  • Park, Soon Min (Korea Expressway Corporation Research Institute)
  • 오민수 (한양대학교 교통물류공학과) ;
  • 박현진 (한양대학교 교통물류공학과) ;
  • 오철 (한양대학교 교통물류공학과) ;
  • 권순민 (한국도로공사 도로교통연구원)
  • Received : 2018.01.17
  • Accepted : 2018.03.23
  • Published : 2018.04.30
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Abstract

The high-speed weigh-in-motion system can collect the traveling speed and load information of individual vehicles, which can be used in a variety of ways for the traffic surveillance. However, it has a limit to apply the high-speed weigh-in-motion data directly to a safety analysis because high-speed weigh-in-motion's raw data are point measured data. In order to overcome this problem, this paper proposes a method to calculate the conflict rate and the Impulse severity based on surrogate safety measures derived from the detection time, detection speed, vehicle length, vehicle type, vehicle weight. It will be possible to analyze and evaluate the risk of rear-end collision on freeway traffic. In addition, this study is expected to be used as a fundamental for identifying crash risks and developing policies to enhance traffic safety on freeways.

고속축중기 시스템은 개별 차량의 통행속도 및 하중 정보를 수집할 수 있어 기존의 차량검지장비와 비교하여 다양한 활용이 가능하다. 그러나 고속축중기 원시 자료는 지점 검지 자료로 구간별 안전성 분석에 직접 적용하는 것은 한계가 있다. 이를 극복하기 위하여 본 연구에서는 고속축중기 자료 중 검지 시간, 검지 속도, 차량길이, 차량 종류, 차량 무게정보를 수집하여 대리안전척도로 이용한 상충률과 충격량을 산출하는 방법론을 제시하였다. 이를 통하여 고속도로 교통류 내의 추종관계 별 후미추돌 위험도를 분석하고 안전성을 평가하는 것이 가능할 것으로 판단되며 해당 구간 내 교통안전 위해차종 선별 및 계도 방안 모색에 기초연구로 활용될 수 있을 것으로 기대된다.

Keywords

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