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Jun 29, 2016
Analysis of Traffic Accidents on Highways Using Latent Class Clustering
Authors: Kang Li, Dalin Qian, Shuang Huang, and Xue LiangAuthor Affiliations
Publication: CICTP 2016
Abstract
One of the most valuable objectives of traffic accident analysis is to identify key factors of severe traffic accidents. Tracking causes or influential factors of accidents becomes possible through the analysis of large quantities of data of traffic accidents, which provides reference for lowering the number of accidents and the severity of accidents. In this paper, latent class clustering (LCC), a classification method, is applied to first classify 1,043 highway accidents, the data of which is from China’s State Administration of Work Safety, into four categories, and then to explore their respective accident attributes through analysis of seven accident variables (weather, season, time, accident category, the number of involved vehicles, etc.). This clustering of decreases its state of irregularity and homogeneity. Binary logistic regression is then employed in the whole data and the four categories to infer main causes of severe traffic accidents.
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© 2016 American Society of Civil Engineers.
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Published online: Jun 29, 2016
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Kang Li
School of Traffic and Transportation, Beijing Jiaotong Univ., Beijing 100044, China.
Dalin Qian
School of Traffic and Transportation, Beijing Jiaotong Univ., Beijing 100044, China.
Shuang Huang
School of Traffic and Transportation, Beijing Jiaotong Univ., Beijing 100044, China.
Xue Liang
School of Traffic and Transportation, Beijing Jiaotong Univ., Beijing 100044, China.
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