As freeway develops rapidly in China, the problem of traffic accidents on freeway, in recent years, has become increasingly prominent. At present, the freeway traffic safety in China isn’t optimistic due to regional differences and other factors, which fosters the probability of freeway traffic accidents. Therefore, it is significant to analyze the factors of these accidents. This paper proposes a method of social network theory considering people, roads, and safety protection facilities comprehensively.The proposed method constructs model of the network relations of accident factors and explores the main characteristics of freeway accidents .This study applies the method to the freeway network and safety accidents in Jilin Province.The Ucinet software is used to analyze the influencing factors of traffic accidents with centrality and cluster analysis,based on the internal relations and the status of each factor in an accident. This study can provide theoretical support for the evaluation index system and follow-up research on regional freeway safety protection.

CICTP