The invention provides a single-point intersection signal online control method based on time-space trajectory data of vehicles at an entrance lane. The method comprises the following steps: preprocessing; acquiring vehicle data at the T moment, and updating the accumulated delay of each vehicle; acquiring traffic signal lamp information, and judging whether the T moment belongs to a scheme updating stage; performing dynamic segmentation on each traffic stream, and analyzing traffic stream space-time distribution characteristics of each phase at the T moment; establishing a single-point intersection signal online control optimization model; the model is solved based on a genetic algorithm, and an optimal signal timing scheme after the T + 1 moment is obtained; and controlling the traffic lights according to the optimal scheme. By applying the method, comprehensive analysis of the real-time traffic condition of the intersection can be realized, the requirement of a driver on signal lamp countdown is met, and meanwhile, a signal control decision is matched with a traffic requirement, so that fair distribution of the right of pass is ensured, and the utilization rate of time-space resources of the intersection is improved.
本发明提供了一种基于进口道车辆时空轨迹数据的单点交叉口信号在线控制方法。该方法包括:预处理;获取T时刻下车辆数据,更新各车辆累计延误;获取交通信号灯信息,判断T时刻是否属于方案更新阶段;将每股车流进行动态分段,分析T时刻下各相位的车流时空分布特征;建立单点交叉口信号在线控制优化模型;基于遗传算法求解所述模型,得到T+1时刻后的最优信号配时方案;根据最优方案控制交通信号灯。应用该方法可以实现对交叉口实时交通状况的全面分析,满足驾驶员对信号灯倒计时的需求,同时使信号控制决策与交通需求相匹配,进而保障通行权的公平分配,提高交叉口时空资源的利用率。
Single-point intersection signal online control method based on space-time trajectory data of vehicles at entrance lane
基于进口道车辆时空轨迹数据的单点交叉口信号在线控制方法
2024-06-14
Patent
Electronic Resource
Chinese
IPC: | G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS |
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