基于敏感性分析的改扩建高速公路安全性评价

随着我国高速公路建设事业的快速发展,不少高速公路由于先期建成路段设计标准较低、超长中服役等原因,已经无法适应目前大交通量的需求,面临着改扩建等问题。文章采用敏感性分析,找出影响改扩建高速公路的敏感因素;从影响交通安全的风险因子发生概率、严重程度2个方面进行单因素敏感性分析和多因素敏感性综合分析,根据分析结果采用模糊综合评价方法对改扩建高速公路的安全性进行评价,并提出相应的优化措施。

Safety Evaluation for Highway Reconstruction and Extension Based on Sensitivity Analysis

With the rapid development of highway construction in our country, many highways built that with lower design standards, and in long service are unable to adapt the demand of traffic volume and need reconstruction. This paper analyzes the sensitive factors affecting the extension of expressway, then from two aspects of risk factors probability and severity, the single factor sensitivity analysis and multi factor sensitivity analysis are taken. According to the results of the analysis the safety of highway expansion is evaludted using fuzzy comprehensive evaluation method. The corresponding optimization measures for highway expansion are put forward.