Journal of Korean Society of Transportation (대한교통학회지)

Korean Society of Transportation (대한교통학회)
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Safety Impacts of Red Light Enforcement on Signalized Intersections

교차로 신호위반 단속카메라 설치가 차량사고에 미치는 영향

  • 이상혁 (한밭대학교 도시공학과) ;
  • 이용두 (코넬대학교 토목환경공학과) ;
  • 도명식 (한밭대학교 도시공학과)
  • Received : 2012.05.11
  • Accepted : 2012.11.29
  • Published : 2012.12.31
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Abstract

The frequency and severity of traffic accidents related to signalized intersections in urban areas have been more serious than those in both arterial segments and crosswalks. Especially, traffic accidents involved with injuries and fatalities have caused by traffic signal violations within intersections. Therefore, many countries including Korea have installed the red light enforcement camera (RLE) to reduce traffic accidents associated with the traffic signal violation. Meanwhile, many methodologies have been studied in terms of safety impacts estimation of red light enforcement, which, however, cannot be easy to conduct. In this study, safety impacts was estimated for intersections of Chicago downtown area using SPF models and EB approach. As a result, for all crash types and target traffic accident types such as "angle", "rear end", "sideswipe in the same and other directions", "turn", and "head on", fatal crashes were reduced by 26% and 38%. However, RLE may increase property-demage-only-crashes by 3.23% and 1.16%, respectively.

도시지역의 교통사고 중 교차로와 관련한 교통사고가 교통사고 건수와 교통사고 심각도에서 가로구간이나 횡단보도 관련 교통사고에 비해 높게 나타나고 있다. 특히 교차로에서 신호위반으로 인한 교통사고는 다른 교통사고유형과는 달리 중상과 경상에 관련된 교통사고비율이 높은 것으로 나타나고 있다. 이에 우리나라는 물론이고 많은 외국에서 신호위반으로 인한 교차로 교통사고를 줄이기 위하여 교차로 신호위반 단속카메라를 설치하고 있다. 이와 더불어 교차로 신호위반 단속카메라의 교통사고 감소에 미치는 효용에 대한 연구가 계속 이루어지고 있으나 신호위반 단속카메라만의 효과를 분석하기란 쉽지가 않다. 따라서 본 연구에서는 미국 Illinois주 Chicago시의 다운타운의 교차로 관련 데이터를 이용하여 SPF모형을 개발하고 개발된 모형을 활용하여 EB방법으로 교차로 신호위반 단속카메라의 효용에 대하여 분석하였다. 분석 결과, 목표로 지정한 교통사고 유형(측면직각추돌, 후방추돌, 같은 방향 측면추돌, 반대 방향 측면추돌, 회전시 추돌, 그리고 정면충돌)과 전체 교통사고유형 모두가 교차로 신호위반 단속카메라의 영향을 받는 것으로 나타났다. 전반적으로 신호위반 단속카메라 사망사고가 약 26% 감소한 것으로 나타났으며, 전체 사고는 5.49% 증가하는 것으로 나타났다. 또한 대물교통사고의 경우 3.23% 증가하는 것으로 나타났다. 또한 목표로 한 사고유형에 대한 교통사고효과 분석에서는 사망사고는 약 38% 감소한 것으로 나타났으며 전체 사고의 경우 1.46% 증가하는 것으로 나타났다. 또한 대물교통사고의 경우 1.16% 증가하는 것으로 나타났다.

Keywords

Acknowledgement

Supported by : Kyonggi University

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