随着我国高速公路的不断建设,通车旅程不断增加,交通事故呈上升趋势,开展高速公路的安全管理分析研究也日益重要。高速公路是全封闭、多车道、具有中央分隔带、全立体交叉、集中管理、控制出入、多种安全服务设施配套齐全的高标准汽车专用公路。高速公路具有行驶速度高,通行能力大等特 Along with the constant construction of expressways in our country, the opening traffic and the increasing number of traffic accidents are on the rise. It is also increasingly important to carry out safety management analysis of expressways. The expressway is a fully enclosed, multi-lane highway with a central divider, full three-dimensional cross, centralized management, control access, a variety of security services complete with high standards of motor vehicles. Expressway with high speed, traffic capacity and other special