【摘要】 对北京市二环快速路微波检测器采集流量数据的分析,用主成分分析法筛选出能反映二环路运行状况的关键检测器对应的路口或路段,这样交管部门可以通过协调相应关键路口或路段来改善交通运行状况,既可以减轻工作负荷又有助于提高工作效率和效益。同时,利用主成分分析法的结果得到基于流量的综合服务水平指标函数,可以此来标定道路的服务水平。更多还原

【Abstract】 The data from detectors plays an important guiding significance on traffic management and traffic flow induced.Using principal component method to analyze flow data to identify the key road junctions or sections based on the operation of the Erhuan detectors.so the traffic manage department can assort with the corresponding key Road junctions and sections to improve the traffic situation,this research can reduce the work load and help to improve the efficiency and effectiveness.And it gives the index function on the level of sever.更多还原