Synthetic Evaluation Model of Traffic Safety Based on Reliability Theory

Based on analysis of traffic safety of third class highway in western area, the text has adopted 28 more important influence factors as the evaluation index from eight aspects, which is natural condition, route condition, and roadside condition and so on. With the help of safety reliability, it has set up the evaluation index system of third class highway traffic safety. The fuzzy synthetic model was built by adopting AHP and fuzzy mathematics theory. The instance of G212 in Zhangxian Country Gansu province is calculated and analyzed with this method, and if the safety reliability satisfied the need, the results are agree with investigates of highway management department. The method can reflect the traffic safety of third class highway in western area.