The invention relates to an intersection timing scheme estimation method based on electronic police checkpoint data. The method comprises the following steps: 1) constructing a double-layer planning problem model for intersection timing scheme estimation; 2) acquiring constraint conditions of period length, phase difference and green signal ratio estimation; 3) for all possible phase combinationsof the controlled flow direction, defining a dumb variable representing the relationship between the turn-on sequence of the green light time of the straight flow direction and the left-turn flow direction and the length of the green light, and obtaining a constraint condition of a phase structure; and 4) solving a double-layer planning problem of intersection timing scheme estimation by adoptinga least square method in combination with constraint conditions of period length, phase difference, phase structure and green signal ratio estimation to obtain a final estimated timing scheme. Compared with the prior art, the method has the advantages of full-parameter estimation, high estimation precision, wide applicability and the like.
本发明涉及一种基于电警卡口数据的交叉口配时方案估计方法,包括以下步骤:1)构建交叉口配时方案估计的双层规划问题模型;2)获取周期长度、相位差以及绿信比估计的约束条件;3)针对受控流向所有可能的相位组合,定义表征直行流向和左转流向绿灯时间的启亮顺序和绿灯长度关系的哑变量,获得相位结构的约束条件;4)结合周期长度、相位差、相位结构和绿信比估计的约束条件,采用最小二乘法求解交叉口配时方案估计的双层规划问题,得到最终估计的配时方案。与现有技术相比,本发明具有全参数估计、估计精度高、适用性广等优点。
Intersection timing scheme estimation method based on electronic police checkpoint data
一种基于电警卡口数据的交叉口配时方案估计方法
2021-01-08
Patent
Electronic Resource
Chinese
IPC: | G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS |
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