The invention provides an arterial traffic coordination control method and system, and belongs to the field of road traffic control, and the method comprises the steps: introducing a graph neural network to carry out the fusion of global information of traffic, and carrying out the coding of a gating time sequence convolution network; global traffic prediction data is obtained according to the coding state and the fusion sum features, and traffic state grades are mapped according to the prediction data; obtaining traffic flow and vehicle speed of local traffic, calculating a fuzzy membership degree, calculating a weighted relation of traffic flow among nodes by using a dynamic traffic flow weighted model, and adjusting local green light timing; establishing a global-local joint objective function, inputting the traffic state grade and the local green light timing into the objective function, and outputting a global-local objective function value; and selecting a control strategy with the minimum global-local objective function value, and outputting the green light control duration. A globally coordinated signal timing scheme is established, the traffic efficiency of the whole arterial traffic is improved, and traffic flow changes and emergencies can be quickly responded.
本发明提供了一种交通干线协调控制方法及系统,属于道路交通控制领域,包括引入图神经网络对交通的全局信息进行融合,门控时序卷积网络进行编码,并根据编码状态和融入和特征得到全局交通预测数据并根据预测数据映射为交通状态等级;获取局部交通的车流量以及车速并计算模糊隶属度,利用动态交通流加权模型计算节点之间交通流的加权关系,调整局部绿灯配时;建立全局‑局部的联合目标函数,将交通状态等级和局部绿灯配时输入目标函数,输出全局‑局部目标函数数值;选择全局‑局部目标函数值最小的控制策略,输出绿灯控制时长。建立全局协调的信号配时方案,提升整个交通干线的通行效率并能够快速响应交通流量的变化和突发事件。
Trunk traffic coordination control method and system
一种交通干线协调控制方法及系统
06.05.2025
Patent
Elektronische Ressource
Chinesisch
IPC: | G06N COMPUTER SYSTEMS BASED ON SPECIFIC COMPUTATIONAL MODELS , Rechnersysteme, basierend auf spezifischen Rechenmodellen / G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS / G06F ELECTRIC DIGITAL DATA PROCESSING , Elektrische digitale Datenverarbeitung |
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