사고 및 충돌유형에 따른 원형교차로 화물차 사고모형

• Published in: 한국안전학회지 Vol. 32; no. 3; pp. 123 - 129
• Main Authors: 손슬기, Seul Ki Son, 조아해, Ah Hae Cho, 박병호, Byung Ho Park
• Format: Journal Article
• Language: Korean
• Published: 한국안전학회 30.06.2017
• Subjects: circular intersection; traffic accident models; truck; type of accident; type of conflict; 안전공학; circular intersection; type of accident; type of conflict; traffic accident models; truck
• ISSN: 1738-3803; 2383-9953

This study deals with the traffic accident of truck at circular intersection. The purpose of this study is to develop the truck accident models based on type of accident and conflict. In pursuing the above, the study gives particular attentions to selecting the appropriate models among Poisson and Negative binomial models using statistical program LIMDEP 8.0. The traffic accident data from 2007 to 2014 are collected from TAAS data set of Road Traffic Authority. Such the dependent variable as number of truck accidents and the 24 independent variables as geometry, traffic volume and others are used. The main results are as follows. First, 5 Poisson models (p 2 of 0.164~0.351) which are all statistically significant are selected. Second, the common variable based on type of accident and conflict is analyzed to be truck apron width. The specific variables are, however, evaluated to splitter island, area of splitter island, speed limit sign, truck apron, number approach road, circular intersection sign, speed hump and traffic volume. Finally, widening the truck apron width and improving the above specific variables are analyzed to be important for truck accident reduction at circular intersections.