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도시부 4지 신호교차로 유턴 사고모형 개발 Development of the U-turn Accident Model at 4-Legged Signalized Intersections in Urban Areas

강종호, 김경환, 하만복, 김성문
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  • URLhttp://db.koreascholar.com/Article/Detail/309480
한국도로학회논문집
제16권 제2호 (2014.04)
pp.119-129
한국도로학회 (Korean Society of Road Engineers)
초록

PURPOSES: The purpose of this study is to develop the U-turn accident model at 4-legged signalized intersections in urban areas. METHODS : In order to analyze the characteristics of the accidents which are associated with U-turn operation at 4-legged signalized intersections in urban areas and develop an U-turn accident model by regression analysis, the tests of overdispersion and zero-inflation are conducted about the dependent variables of number of accidents and EPDO (Equivalent Property Damage Only). RESULTS: As their results, the Poisson model fits best for number of accident and the ZIP (Zero Inflated Poisson) fits best for EPOD, the variables of conflict traffic, width of opposing road, traffic passing speed are adopted as independent variable for both models. The variables of number of bus berths and rate of U-turn signal time at which the U-turn is permitted are adopted as independent variable only for EPDO. CONCLUSIONS: These study results suggest that U-turn would be permitted at the intersection where the width of opposing road is wider than 11.9 meters, the passing vehicle speed is not high and U-turn operation is not hindered by the buses stopping at bus stops.

저자
  • 강종호(도로교통공단 울산경남지부 과장·공학박사) | Kang, JongHo 주저자
  • 김경환(경상대학교 도시공학과 교수·환경및지역발전연구소장·공학박사) | Kim, KyungWhan 교신저자
  • 하만복(경상대학교 환경및지역발전연구소 연구원·공학박사) | Ha, ManBok
  • 김성문(경상대학교 석사과정·BK21+ 창조형 중소도시재생 전문인력 양성사업팀) | Kim, SeongMun