The invention relates to the field of urban traffic signal optimization control, in particular to a maximum bandwidth phase difference optimization method based on green waves, which comprises the following steps: acquiring vehicle passing data of all intersections in a target area, and counting traffic data of lane levels of the intersections by using the vehicle passing data; storing phase timing data, distance data and flow data of the target line; calculating to obtain a key intersection of a green wave line, and obtaining a green wave period; adopting a green light distribution proportion method to obtain signal timing data of the same period of each intersection of the green wave line; calculating passing time of the associated traffic flow; particle phase difference initialization is carried out by using a particle swarm algorithm, through a punishment mechanism, the forward and reverse bandwidth difference is reduced, the phase difference of all green wave intersections is obtained, and through an iteration mode, the phase difference of all green wave intersections, which enables the bandwidth of the green wave to be maximum, is obtained. By using the phase difference optimization model based on the maximum bandwidth of the green wave, the traffic signal is adjusted according to the real-time traffic flow, and the traffic mobility and efficiency are optimized.
本发明涉及城市交通信号优化控制领域,具体涉及基于绿波最大带宽相位差优化方法,该方法包括:获取目标区域内所有路口过车数据,使用过车数据统计路口车道级别的流量数据;存储目标线路的相位配时数据、距离数据和流量数据;计算得到绿波线路的关键路口,得到绿波周期;采用绿灯分配比例法,得到绿波线路每个路口的相同周期的信号配时数据;计算关联交通流的通行时间;使用粒子群算法做粒子相位差初始化,通过惩罚机制,减小正反向带宽差距,求得绿波所有路口相位差,并通过迭代的方式,得到使绿波带宽最大的绿波所有路口的相位差。通过使用基于绿波最大带宽的相位差优化模型,使交通信号根据实时交通流量进行调整,优化交通流动性和效率。
Phase difference optimization method based on maximum bandwidth of green wave
一种基于绿波最大带宽相位差优化方法
2023-12-05
Patent
Electronic Resource
Chinese
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