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Developing the Traffic Accident Models of Arterial Link Sections by Driving Type  

Kim, Kyung-Hwan (Graduate School of Department of Urban Engineering, Chungbuk National University)
Park, Byung-Ho (Department of Urban Engineering, Chungbuk National University)
Publication Information
Journal of the Korean Society of Safety / v.25, no.6, 2010 , pp. 197-202 More about this Journal
Abstract
This study deals with the accident models of arterial link sections by driving type. The objectives is to develop models by driving type using the accident data of 24 arterial links in Cheong-ju. In pursuing the above, this study gives particular emphasis to modeling such the accidents as the straight, lane change and others. The main results analyzed are as follows. First, the number of accidents is analyzed to account for about 59% in straight, 31% in lane change and 10% in others. Second, the number of left-turn lane as common variables, and the ADT, number of pedestrian crossings, connecting roads and link length as specific variables are selected in developing models(number of accident and EPDO). Third, 8 models which are all statistically significant are developed. Finally, RMSE of the driving type models was analyzed to be better than that of dummy variable.
Keywords
accident model; dummy variable; multiple linear regression model; paired sample t-test; RMSE(root mean square error);
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Times Cited By KSCI : 2  (Citation Analysis)
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