The invention discloses an intersection signal dynamic coordination control method and system based on real-time trajectory data, which belongs to the technical field of urban traffic management and signal control and comprises three aspects of traffic state estimation, traffic state deduction and coordination control scheme optimization. Firstly, a traffic state is represented by road network cellular division and real-time trajectory data calibration cellular states. Secondly, decomposing the traffic flow into convection and diffusion motions by referring to molecular one-dimensional convection-diffusion motion, establishing a dynamic motorcade discrete model, and simulating traffic state evolution; and finally, designing a two-stage framework optimization coordination control scheme, in the first stage, calculating the public period duration and the green time ratio, and in the second stage, optimizing the phase difference to minimize the delay. According to the invention, traffic changes can be dynamically responded, signal timing is optimized, and the traffic efficiency of the intersection is improved.
本发明公开了一种基于实时轨迹数据的交叉口信号动态协调控制方法及系统,属于城市交通管理和信号控制技术领域,包括:交通状态估计、交通状态推演和协调控制方案优化三个方面。首先,通过路网元胞划分和实时轨迹数据标定元胞状态来表征交通状态。其次,借鉴分子一维对流—扩散运动,将交通流分解为对流和扩散运动,建立动态车队离散模型,模拟交通状态演化。最后,设计两阶段框架优化协调控制方案,第一阶段计算公共周期时长和绿信比,第二阶段优化相位差以最小化延误。本发明能够动态响应交通变化,优化信号配时,提高交叉口通行效率。
Intersection signal dynamic coordination control method and system based on real-time trajectory data
一种基于实时轨迹数据的交叉口信号动态协调控制方法及系统
2025-03-28
Patent
Electronic Resource
Chinese
IPC: | G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS |
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