随着我国高速公路的发展和运输车辆的增加,交通安全已成为重大的社会问题。纵观交通事故发生的原因,不难发现,我国高速公路交通事故的高发生率除了与道路使用者——人的因素、道路上行驶的车辆因素相关外,还与高速公路道路自身因素密切相关。从道路线形、路面状况和交通环境等方面分析了高速公路交通事故的原因,以期能为高速公路安全设施和监控系统设计与实施提供参考依据。 With the development of our expressway and the increase of transport vehicles, traffic safety has become a major social issue. Looking at the causes of traffic accidents, it is not difficult to find out that the high incidence of traffic accidents in expressways in our country is closely related to the factors of road users, human factors and vehicles driving on the road, . This paper analyzes the causes of highway traffic accidents from the aspects of road alignment, road conditions and traffic environment so as to provide a reference for the design and implementation of expressway safety facilities and monitoring systems.