대한교통학회지 (Journal of Korean Society of Transportation)

  • 제30권3호
  • /
  • Pages.57-70
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  • 2012
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  • 1229-1366(pISSN)
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  • 2234-4217(eISSN)
대한교통학회 (Korean Society of Transportation)
권호 표지
DOI QR코드

DOI QR Code

교통안전을 고려한 고속도로 가변제한속도 운영구간 우선순위 결정 연구

Prioritizing Freeway Segments for Variable Speed Limit (VSL) Operations based on Traffic Safety

  • 최새로나 (한양대학교 교통.물류공학과) ;
  • 이기영 (한국도로공사 도로교통연구원) ;
  • 오철 (한양대학교 교통.물류공학과)
  • Choi, Sae-Ro-Na (Transportation and Logistics Engineering, Hanyang University) ;
  • Lee, Kee-Yong (Expressway and Transportation Research Institute) ;
  • Oh, Cheol (Transportation and Logistics Engineering, Hanyang University)
  • 투고 : 2012.01.13
  • 심사 : 2012.04.13
  • 발행 : 2012.06.30
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초록

최근 고속도로에서 운전자가 교통운영 및 안전상 적정한 속도로 운행할 수 있도록 기상, 교통사고, 혼잡 등에 효과적으로 대응할 수 있는 교통류 관리전략에 대한 필요성이 증가하고 있다. 새로운 교통시스템을 적용하기에 앞서 해당 시스템의 효과를 극대화할 수 있는 운영구간을 결정하는 기준에 대한 연구가 선행되어야 하며, 교통사고자료를 활용한 통합적인 분석을 통하여 운영구간 우선순위 결정 기준을 마련할 수 있다. 본 연구에서는 향후 국내 가변제한속도 도입 시 교통안전을 고려하여 우선적으로 설치해야할 운영구간을 선정하기 위한 방법론을 제시하였다. 순서형 프로빗 모형을 이용한 분석결과, 교통안전을 고려한 가변제한속도 운영구간 우선순위는 교량 및 터널구간, 내리막구간, 승합차 또는 화물차의 비율이 높은 구간, 야간시, 이상기후시 차량의 평균속도가 높은 구간, 차량간 속도분산이 높게 나타나는 구간 순으로 나타났다. 본 연구의 결과는 기상대응을 목적으로한 국내 가변제한속도 시스템 도입시 운영구간 우선순위 도출에 효과적으로 활용할 수 있다.

Variable speed limit(VSL) is a useful speed management tool for alleviating traffic congestion and enhancing traffic safety. The purpose of this study is to identify promising freeway segments for safety enhancement through VSL operations. An ordered probit model was adopted to capture factors affecting freeway crash severity that can be used to support decision making for selecting the promising segments. Pseudo elasticity and marginal effects, which are outcomes of the ordered probit analysis, were used to determine priority of promising segments for traffic safety. The results of this study would be useful in installing VSL systems and developing traffic control and operations strategies in practice.

키워드

참고문헌

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피인용 문헌

  1. Comparison of Methodologies for Characterizing Pedestrian-Vehicle Collisions vol.31, pp.6, 2013, https://doi.org/10.7470/jkst.2013.31.6.053