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

The Korea Institute of Intelligent Transport Systems (한국ITS학회)
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Effects of Road Networks on Vehicle-Pedestrian Crashes in Seoul

도로네트워크 특성과 차대사람 사고발생 빈도간의 관련성 분석 : 서울시를 사례로

  • Park, Sehyun (Dept. of Transportation System Research, Seoul Institute) ;
  • Kho, Seoung-Young (Dept. of Civil and Environmental Eng., Seoul National University) ;
  • Kim, Dong-Kyu (Dept. of Civil and Environmental Eng., Seoul National University) ;
  • Park, Ho-Chul (Dept. of Transportation Eng., Myongji University)
  • 박세현 (서울연구원 교통시스템연구실) ;
  • 고승영 (서울대학교 건설환경공학부) ;
  • 김동규 (서울대학교 건설환경공학부) ;
  • 박호철 (명지대학교 교통공학과)
  • Received : 2020.02.10
  • Accepted : 2020.03.25
  • Published : 2020.04.30
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Abstract

Many human, roadway, and vehicle factors affect vehicle-pedestrian crashes. Especially, the roadway factors are easily defined and suitable for suggesting countermeasures. The characteristics of the road network are one of the roadway factors. The road network significantly influences behaviors and conflicts of drivers and pedestrians. A metropolitan city such as Seoul contains various types of road networks, and crash prevention strategy considering characteristics of the road network is required. In this study, we analyze the effects of road networks on vehicle-pedestrian crashes. In the study, high order road ratio, intersection ratio, high-low intersection ratio are considered as road network variables. Using Geographically Weighted Poisson Regression, crash frequencies in Dongs of Seoul are analyzed based on the road network variable as well as socioeconomic variables. As a result, Dongs are grouped by coefficient signs, and each group is suggested about improvement directions considering conflict situations.

차대사람 사고는 인적 요인, 차량 요인, 도로 환경적 요인 등 다양한 요인이 복합적으로 작용하여 발생한다. 도로 환경적 요인은 차대사람 사고 발생에 상당한 영향을 미치는 것으로 알려져 있으며 인적 요인과 차량 요인에 비해 대책 수립이 용이하여 분석 결과의 활용성이 높다. 도로 환경적 요인 중 도로 네트워크 특성은 운전자와 보행자의 행태에 영향을 미치며 두 이동체 간 상충 특성에 관여하여 사고를 발생시킨다. 서울시와 같은 대도시는 지역별 도로 네트워크 형태가 상이하여 사고 모형 구축 시 지역별 특성을 고려할 필요가 있다. 본 연구에서는 도로 네트워크 특성을 반영하기 위해 도로의 위계, 교차로 밀도, 교차로 특성을 변수로 반영하였다. 또한, 공간가중 포아송회귀모형을 사용하여 지역별 차대사람 사고에 대한 도로 네트워크의 영향을 분석하였다. 분석 결과, 도로 네트워크 특성에 따른 사고발생 영향이 유사한 행정동 집단을 선별할 수 있었다. 결과를 바탕으로 지역별 도로 네트워크 특성에 따른 운전자와 보행자의 상충 특성을 검토하고 지역별 개선점을 제시할 수 있었다.

Keywords

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