The invention discloses a green wave coordination clearing time calculation method based on sampling trajectory data, which comprises the following steps of: 1) for a coordination path P (i-j) from an upstream intersection Ii to a downstream intersection Ij, classifying and defining traffic flows fS (i-j) in each flow direction related to the coordination path P (i-j), detecting a parking state S (n, j) and a parking moment TS (n, j) of a sampling vehicle n at the downstream intersection Ij, and calculating the green wave coordination clearing time of the coordination path P (i-j) according to the parking state S (n, j) and the parking moment TS (n, j); the actual passing time TP (n, j) and the ideal passing time TE (n, j) are calculated, and the number of arriving vehicles is calculated in combination with the sampled vehicle tracks; 2) constructing an arrival likelihood function of the traffic flow fS (i-j) in each flow direction, and estimating an arrival flow rate lambda S (i-j) of the traffic flow fS (i-j) in each flow direction; (3) calculating the maximum clearing time # imgabs0 #; (4) determining the passing condition of the target coordination vehicle at the downstream intersection Ij according to the coordination phase green light duration of the upstream intersection and the downstream intersection and the maximum clearing time # imgabs1 #, and calculating the clearing time tC (i-j) of the target coordination vehicle flow fO (i-j) or the target coordination updating vehicle flow fH (i-j). According to the invention, the emptying time of the target coordination vehicle can be effectively calculated.
本发明公开了一种基于抽样轨迹数据的绿波协调清空时间计算方法,包括以下步骤:1)对于从上游交叉口Ii到下游交叉口Ij的协调路径P(i→j),分类定义与其相关的各流向车流fS(i→j),检测抽样车辆n在下游交叉口Ij的停车状态S(n,j)和停车时刻TS(n,j),计算其实际通过时刻TP(n,j)和理想通过时刻TE(n,j),结合抽样车辆轨迹计算到达车辆数;2)构建各流向车流fS(i→j)的到达似然函数,估计各流向车流fS(i→j)的到达流率λS(i→j);3)计算全部非目标协调车流最大清空时间#imgabs0#4)根据上下游交叉口协调相位绿灯时长与最大清空时间#imgabs1#确定目标协调车辆在下游交叉口Ij的通过情况,计算目标协调车流fO(i→j)或目标协调更新车流fH(i→j)的清空时间tC(i→j)。本发明可以有效计算目标协调车辆的清空时间。
Green wave coordination clearing time calculation method based on sampling trajectory data
一种基于抽样轨迹数据的绿波协调清空时间计算方法
2025-03-28
Patent
Electronic Resource
Chinese
IPC: | G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS |
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