한국안전학회지 (Journal of the Korean Society of Safety)

  • 제32권6호
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  • Pages.143-149
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  • 2017
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  • 1738-3803(pISSN)
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  • 2383-9953(eISSN)
한국안전학회 (The Korean Society of Safety)
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국도상 교통사고 심각도에 영향을 미치는 횡단구성 요소 분석

Analysis of Road Cross Section Component Affecting Traffic Accident Severity on National Highway

  • 박재홍 (한국건설기술연구원 도로연구소) ;
  • 윤덕근 (한국건설기술연구원 도로연구소)
  • Park, Jaehong (Highway and Transportation Research Institute, Korea Institute of Civil Engineering and Building Technoglogy) ;
  • Yun, Dukgeun (Highway and Transportation Research Institute, Korea Institute of Civil Engineering and Building Technoglogy)
  • 투고 : 2017.10.27
  • 심사 : 2017.11.28
  • 발행 : 2017.12.31
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초록

According to traffic accidents statistics, the number of fatalities, injuries and the rate of increase of traffic accidents have been decreasing over last 5-years. The fatality rate is 1.9 for total accidents but the fatality rate for single vehicle accidents shows a 7.9, which is 4 times greater than the average for all accidents. Single vehicle accidents, usually occur as a vehicle impacts a fixed objects on the roadside as the vehicle runs-off from the road. However, few researches have been conducted considering the accident severity of single vehicle accidents which impact to the fixed objects on the road. The single vehicle accident is directly related to the composition of road cross section, (since it is the required the minimum width of a road for all run-off-the-road vehicles to recover or come to a safe stop). Therefore, this study analyzes the influence of road cross section on traffic accidents to find out the severity of single vehicle accident. To analyze the road elements which are related to the accident severity, the Ordered Probit Model was used. As variables, the element of road cross section such as the radius(m), vertical curve(%), cross sectional grade(%), road width(m). number of climbing lane, median, and curb, were used (as was the 3-years of accidents data). This study found out that cross slope(%), road width(m), and the number of climbing lane are related to the severity of accident. The result of this study could be expected to improve the road safety and to be used as the base data for further road safety research.

키워드

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