The invention discloses a road network traffic signal control method based on a macroscopic fundamental diagram, and the method comprises the steps of dividing a traffic road network into a pluralityof subareas, coordinating the control targets of all subareas, and carrying out the traffic signal control. Firstly, curve fitting is carried out on road network weighted flow and the number of vehicles to obtain MFD characteristics of each subarea; and further, the optimal accumulated vehicle number of the subareas is obtained according to the fitting result. And then, the heterogeneity of different sub-intervals and the actual traffic flow condition are considered, and a control target is designed according to the optimal accumulated vehicle number. And meanwhile, iterative learning controlis performed on each subarea, and finally, road network traffic signal control is completed. According to the road network traffic signal control method based on the macroscopic fundamental diagram, vehicles can be reasonably distributed in the road network, and the overall operation level of the road network is improved. Moreover, the traffic state of the road network and the isomerism of different sub-regions are fully considered, the actual traffic condition is better met, and the method can be applied to actual engineering.
一种基于宏观基本图的路网交通信号控制方法,通过将交通路网划分成多个子区,协调各子区控制目标,分别进行交通信号控制。首先,将路网加权流量和车辆数进行曲线拟合,得到各个子区的MFD特性。进而,根据拟合结果求得子区的最佳累积车辆数。随后,考虑不同子区间的异构性和实际交通流情况,根据最佳累积车辆数设计控制目标。同时,对每个子区分别进行迭代学习控制,最终完成路网交通信号控制。这种基于宏观基本图的路网交通信号控制方法,可以实现车辆在路网中合理分布,提升路网的整体运行水平。而且,本发明充分考虑了路网的交通状态和不同子区的异构性,更符合实际的交通状况,可以应用在实际工程中。
Road network traffic signal control method based on macroscopic fundamental diagram
一种基于宏观基本图的路网交通信号控制方法
2020-07-17
Patent
Elektronische Ressource
Chinesisch
IPC: | G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS |
Macroscopic Fundamental Diagram Estimation Considering Traffic Flow Condition of Road Network
DOAJ | 2023
|Europäisches Patentamt | 2023
|