Abstract: In order to analyze the influencing factors of driver's hazard perception more comprehensively, the study analyzes the characteristics of the driver, the dangers in the driving task and the connotation and mechanism of the driver's risk perception. Then the fault tree analysis method is used to analyze the influencing factors of the driver's risk perception. The results show that there are differences in the characteristics of the driver. The dangers in the driving task are multifaceted, the dangers could result from the driver, the danger’ feature and the social environment. Dangers which are almost imperceptible, the degree of danger is low, the traffic environment is bad and the cognitive ability exceeds driver`s physiological limit, the confusion of driver's memory leaded by analogous dangerous forms, driver's distraction, the ability of driver`s danger detection is insufficient, driver`s hazard perception is weak, driver`s insufficient education in traffic safety knowledge, low level of traffic ethics and traffic psychological phenomena, weak traffic supervision and low supervision intensity are the possible causes for the failure of driver's risk perception. Based on the above analysis, the paper puts forward some suggestions and measures. Key words: traffic engineering; driver; hazard perception; fault tree analysis; traffic situation Authors: Xianghong Li,Jingshuai Yang, Peng-zi Chu, Ning Han, Tao Wu Authors affiliations: School of Automobile, Chang’an University, Xi’an 710064, China;The Key Laboratory of Road and Traffic Engineering, Ministry of Education,Shanghai,201804. Other information about paper：The research was sponsored by Shaanxi Provincial Natural Science Basic Research Project (2019JM-309), Fundamental Research Funds for the Central Universities (300102228205) and National Natural Science Foundation of China (51108040).

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