The invention provides a fixed time region traffic signal optimization method and system, and belongs to the technical field of traffic signal control, and the method comprises the steps: obtaining the road network data of a to-be-optimized region; wherein the road network data comprises each intersection position, lane flow direction, lane number, signal lamp phase and sequence, and vehicle input and output of each entrance and exit in unit hour; processing the obtained road network data of the to-be-optimized area by using the constructed optimization model to obtain new signal timing of the to-be-optimized area; wherein the optimization model is constructed according to the relationship between the signal lamp phase of the to-be-optimized area and the average vehicle delay, and the optimization target is to obtain the average vehicle delay time as small as possible. According to the method, an evolutionary optimization algorithm is assisted through the agent model, the method can be well applied to a large-scale regional road network, and the problem that an existing signal timing optimization algorithm is difficult to apply to a large-scale road network due to large search space and limited calculation budget is solved to a certain extent.
本发明提供一种固定时间区域交通信号优化方法及系统,属于交通信号控制技术领域,获取待优化区域的路网数据;其中,所述路网数据包括各交叉口位置、车道流向、车道数、信号灯相位及顺序,以及每个出入口在单位小时内的车辆输入及输出;利用构建好的优化模型对获取的待优化区域的路网数据进行处理,得到待优化区域的新的信号配时;其中,将待优化区域的信号灯相位与车辆平均延误之间的关系构建所述优化模型,优化目标为获得尽可能小的车辆平均延误时间。本发明通过代理模型来辅助进化优化算法,能较好应用于大规模区域路网,在一定程度上弥补现有信号配时优化算法由于搜索空间大、计算预算有限,难以应用于大规模道路网络的问题。
Fixed time area traffic signal optimization method and system
固定时间区域交通信号优化方法及系统
11.04.2025
Patent
Elektronische Ressource
Chinesisch
IPC: | G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS |
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