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Development of Traffic Accident Prediction Models by Traffic and Road Characteristics in Urban Areas  

이수범 (서울시립대학교 교통공학과)
김정현 (한양대학교 토목환경공학과)
김태희 (국토연구원 민간투자지원센타)
Publication Information
Journal of Korean Society of Transportation / v.21, no.4, 2003 , pp. 133-144 More about this Journal
Abstract
The current procedure of estimating accident reduction benefit shows fixed accident rates for each level of roads without considering the various characteristics of roadway geometries, and traffics. In this study, in order to solve the problems mentioned in the above, models were developed considering the characteristics of roadway alignments and traffic characteristics. The developed models can be used to estimate the accident rates on new or improved roads, In this study, only urban highways were included as a beginning stage. First of all. factors influencing accident rates were selected. Those factors such as traffic volumes. number of signalized intersections, the number of connecting roads, number of pedestrian traffic signals, existence of median barrier, and the number of road lane are also selected based upon the obtainability at the planning stage of roads. The relationship between the selected factors and accident rates shows strong correlation statistically. In this study, roads were classified into 4 groups based on number of lanes, level of roads and the existence of median barriers. The regression analysis had been performed for each group with actual data associated with traffic, roads. and accidents. The developed regression models were verified with another data set. In this study, in order to develop the proposed models, only data on a limited area were used. In order to represent whole area of the country with the developed models. the models should be re-analyzed with vast data.
Keywords
사고예측모형;교통사고절감편익;도로의 경제성 평가;안전도;도로 및 교통특성;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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