Road traffic states estimation algorithm based on matching of regional traffic attracters  

作　　者：徐东伟 董宏辉 贾利民 田寅 

机构地区：[1]State Key Laboratory of Rail Traffic Control and Safety(Beijing Jiaotong University) [2]School of Traffic and Transportation,Beijing Jiaotong University

出　　处：《Journal of Central South University》2014年第5期2100-2107,共8页中南大学学报（英文版）

基　　金：Projects(D07020601400707,D101106049710005)supported by the Beijing Science Foundation Plan Project,China;Projects(2006AA11Z231,2012AA112401)supported by the National High Technology Research and Development Program of China(863 Program);Project(61104164)supported by the National Natural Science Foundation of China

摘　　要：To effectively solve the traffic data problems such as data invalidation in the process of the acquisition of road traffic states,a road traffic states estimation algorithm based on matching of the regional traffic attracters was proposed in this work.First of all,the road traffic running states were divided into several different modes.The concept of the regional traffic attracters of the target link was put forward for effective matching.Then,the reference sequences of characteristics of traffic running states with the contents of the target link's traffic running states and regional traffic attracters under different modes were established.In addition,the current and historical regional traffic attracters of the target link were matched through certain matching rules,and the historical traffic running states of the target link corresponding to the optimal matching were selected as the initial recovery data,which were processed with Kalman filter to obtain the final recovery data.Finally,some typical expressways in Beijing were adopted for the verification of this road traffic states estimation algorithm.The results prove that this traffic states estimation approach based on matching of the regional traffic attracters is feasible and can achieve a high accuracy.To effectively solve the traffic data problems such as data invalidation in the process of the acquisition of road traffic states, a road traffic states estimation algorithm based on matching of the regional traffic attracters was proposed in this work. First of all, the road traffic running states were divided into several different modes. The concept of the regional traffic attracters of the target link was put forward for effective matching. Then, the reference sequences of characteristics of traffic running states with the contents of the target link＇s traffic running states and regional traffic attracters under different modes were established. In addition, the current and historical regional traffic attracters of the target link were matched through certain matching rules, and the historical traffic running states of the target link corresponding to the optimal matching were selected as the initial recovery data, which were processed with Kalman filter to obtain the final recovery data. Finally, some typical expressways in Beijing were adopted for the verification of this road traffic states estimation algorithm. The results prove that this traffic states estimation approach based on matching of the regional traffic attracters is feasible and can achieve a high accuracy.

关 键 词：road traffic regional traffic attracter traffic state data recovery MATCHING 

分 类 号：U491[交通运输工程—交通运输规划与管理] TM744[交通运输工程—道路与铁道工程]