The invention discloses a variable phase sequence overflow intersection signal coordination control method based on MPC, and the method comprises the steps: predicting the number of vehicles arriving at an overflow intersection, namely a stop line of a downstream intersection, in the future according to the driving data of vehicles at an upstream intersection; calculating the queuing length of the vehicles at the downstream intersection according to the predicted vehicle arrival number; constructing a downstream intersection signal timing optimization model based on dynamic planning, and solving to obtain a current optimized signal timing scheme; and taking the green light end time of a stage of which the first green light time length is not 0 in the last optimized signal timing scheme as the start time of the next optimization, thereby realizing dynamic rolling optimization control. According to the method, the vehicle track big data collected at the upstream entrance lane of the intersection is used, the arrival condition of downstream vehicles is estimated, the dynamic planning model is constructed, the optimal signal timing scheme is recommended for the overflow intersection, anti-overflow control over the intersection is achieved, the urban road traffic operation efficiency is improved, and the travel delay level is reduced.
本发明公开了一种基于MPC的可变相序溢流交叉口信号协调控制方法,包括:根据上游交叉口车辆的行驶数据,预测未来到达溢流交叉口即下游交叉口停车线的车辆数量;根据预测的车辆到达数量,计算下游交叉口车辆的排队长度;构建基于动态规划的下游交叉口信号配时优化模型,并求解得到当前一次优化的信号配时方案;将上一次优化的信号配时方案中第一个绿灯时间长度不为0的阶段的绿灯结束时间作为下一次优化的开始时间,实现动态滚动优化控制。本发明通过使用在交叉口上游进口道采集到的车辆轨迹大数据,估计下游车辆的到达情况,构建动态规划模型为溢流交叉口推荐最佳信号配时方案,实现路口的反溢流控制,提高城市道路交通运行效率,降低出行延误水平。
Variable phase sequence overflow intersection signal coordination control method based on MPC
一种基于MPC的可变相序溢流交叉口信号协调控制方法
2024-08-13
Patent
Electronic Resource
Chinese
IPC: | G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS |
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