The invention discloses an intersection queuing length estimation method based on sparse network connection vehicle track data. The method comprises the following steps: step 1, constructing a speed matrix in a red light state, a speed matrix in a green light state and a standard deviation matrix of speed of an intersection road section by using the sparse network connection vehicle track data; step 2, obtaining a queuing vehicle possible influence range matrix by using the speed matrix of the intersection road section in the red light state, the speed matrix in the green light state and the standard deviation matrix of the speed; 3, based on the obtained possible influence range matrix of the queuing vehicles, an integer programming model and constraint conditions are utilized to obtain an actual influence range matrix of the queuing vehicles, so that the vehicle queuing length in a signal period is obtained; and 4, repeating the steps 1 to 3, and dynamically obtaining the vehicle queuing length in each signal period. According to the method, the queue length in the intersection can be effectively deduced by utilizing limited sparse network connection vehicle trajectory data, an integer programming model and constraint conditions.
本发明公开了一种基于稀疏网联车轨迹数据的交叉口排队长度估计方法,包括以下步骤:步骤1、利用稀疏的网联车轨迹数据构建交叉口路段红灯状态下的速度矩阵、绿灯状态下的速度矩阵和速度的标准差矩阵;步骤2、利用交叉口路段红灯状态下的速度矩阵、绿灯状态下的速度矩阵和速度的标准差矩阵得到排队车辆可能影响范围矩阵;步骤3、基于所得的排队车辆可能影响范围矩阵,利用整数规划模型和约束条件,得到排队车辆实际影响范围矩阵,从而得到信号周期内的车辆排队长度;步骤4、重复步骤1至3,动态得到每个信号周期内的车辆排队长度。本发明利用有限的稀疏网联车轨迹数据,并利用整数规划模型和约束条件,能够有效地推断出交叉口内的排队长度。
Intersection queuing length estimation method based on sparse network connection vehicle trajectory data
一种基于稀疏网联车轨迹数据的交叉口排队长度估计方法
2023-06-06
Patent
Elektronische Ressource
Chinesisch
IPC: | G06F ELECTRIC DIGITAL DATA PROCESSING , Elektrische digitale Datenverarbeitung / G06Q Datenverarbeitungssysteme oder -verfahren, besonders angepasst an verwaltungstechnische, geschäftliche, finanzielle oder betriebswirtschaftliche Zwecke, sowie an geschäftsbezogene Überwachungs- oder Voraussagezwecke , DATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTING PURPOSES / G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS |
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