The invention discloses an annular intersection signal lamp control method and system, and the method comprises the steps: constructing a signal timing model, and updating model parameters according to real-time traffic flow data obtained by a sensing device disposed at an annular intersection; setting constraint conditions of a signal timing model according to the signal duration characteristics; the signal timing model under the constraint condition is optimized and solved, and the control duration of each signal lamp is obtained; and controlling the corresponding signal lamp to be turned on or turned off according to the control duration of each signal lamp. According to the method, a roundabout signal timing model is constructed, model parameters are updated according to real-time traffic flow data such as traffic flow and vehicle-mounted time interval acquired by sensing equipment arranged at a roundabout, finally, the control duration of each signal lamp is acquired through rapid optimization solution, and the control strategy of the signal lamps is dynamically adjusted, so that the traffic signal control accuracy is improved. And on-site traffic flow is supervised and controlled in real time, so that the traffic capacity of the roundabout is improved, and the problem of traffic jam of the roundabout is effectively relieved.
本发明公开一种环形交叉路口信号灯控制方法及系统,所述方法包括步骤:构建信号配时模型,并根据部署在环形交叉路口的感知设备获取的实时交通流数据更新模型参数;根据信号时长特征设置信号配时模型的约束条件;优化求解约束条件下信号配时模型,获取各信号灯的控制时长;根据各信号灯的控制时长,控制相应信号灯开启或关闭。本发明通过构建环形交叉口信号配时模型,并根据布设在环形交叉路口的感知设备获取的车流量、随车时距等实时交通流数据,对模型参数进行更新,最后通过快速优化求解获取各信号灯的控制时长,动态调整信号灯的管控策略,对现场交通流进行实时监管和控制,提高了环形交叉路口的通行能力,有效缓解了环岛行车拥堵的问题。
Roundabout signal lamp control method and system
一种环形交叉路口信号灯控制方法及系统
2024-04-19
Patent
Electronic Resource
Chinese
IPC: | G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS |
Applicability of Signal Control Method at Roundabout
ASCE | 2007
|Applicability of Signal Control Method at Roundabout
British Library Conference Proceedings | 2007
|Roundabout traffic signal real-time control system and control method
European Patent Office | 2024
|