基于定点检测器的路段交通状态实时评价方法  

Method for real-time traffic state evaluation based on fixed detector

作　　者：曲腾姣 杨希锐 陈秀锋[1] 陈文娇[1] 曹俊业[1] 万孟飞 

机构地区：[1]青岛理工大学汽车与交通学院,青岛266520 [2]蚌埠汽车士官学校司训勤务系,蚌埠233011

出　　处：《青岛理工大学学报》2015年第5期95-99,共5页Journal of Qingdao University of Technology

基　　金：国家自然科学基金资助项目(51178231);山东省自然科学基金资助项目(ZR2012EEL28);国家863计划项目(2012AA112309)

摘　　要：为提高交通状态判别的准确性和实用性,提出一种基于定点检测器的城市交通状态实时评判方法.考虑地磁感应线圈检测器的布设与数据采集方法,采用阈值筛选和缺失数据补偿方法对检测数据进行预处理,建立交通流平均速度和平均时间占有率的拥堵指数隶属度函数,提出了融合速度指数和占有率指数的拥堵评价指数模型.最后以烟台市二马路采集的数据对模型的实用性进行验证.实验结果表明,所建立模型可以精确、有效地对交通状态进行判别.In order to improve the accuracy and practicability of the traffic state identification,this paper puts forward a method for real-time traffic state evaluation based on fixed detector.In consideration of the construction and data collection methods of inductive loop vehicle detector,and the preprocess of the traffic data collected by detectors with the method of threshold screening and missing data compensation,the congestion index membership functions about the average velocity and the average time occupancy are established.On the basis,congestion measurement index models of converging speed index and occupancy index are proposed.Finally,the practicability of models is verified by the data collected in Ermalu Road of Yantai.The experimental results show that the established model can accurately and effectively identify the traffic state.

关 键 词：交通工程 状态评价 定点检测器 拥堵指数 

分 类 号：U491.1[交通运输工程—交通运输规划与管理]