北京市快速路可靠性分析及应用

Reliability of Urban Expressway in Beijing

快速路作为城市交通网络的重要组成部分,其速度的可靠性直接影响整个城市交通系统运行效率的高低。为了更好地分析快速路的速度特征,选取具有代表性的几条快速路进行了速度可靠性分析。应用SPSS统计软件,对快速路基本路段车辆速度进行了分断面和分时段的研究;通过对各快速路断面和时段的对比分析,得出各条快速路速度可靠性的高低和对应的服务水平,以及城市中向外辐射方向的快速路服务水平高,起联络线作用的快速路部分路段速度可靠性低,车辆在行驶过程中受到的干扰大,快速路应有功能没有得到充分发挥的结论。

The urban expressway plays an important role in urban expressway network, whose reliability of speed directly affects the efficiency of the entire urban transport system. In order to better analyze the speed features of city expressway, several representative expressways are selected to analyze speed reliability. SPSS statistical software is used to analyze the basic sections speed of the expressway by sub--sections and sub--periods. The expressway sections and time periods are compared and analyzed, and the speed reliability and the corresponding service levels of each expressway are obtained. Then, the causes are analyzed with the actual situation of the road.