The invention discloses an expressway entrance ramp control method and system based on a heterogeneous traffic scene. The method comprises the following steps: detecting the number Q1 of vehicles at the downstream of a main road junction point; if Q1 is smaller than the number Q of vehicles reaching the congestion threshold at the downstream of the main road confluence point, obtaining the shortest time T1 for the first vehicle at the outermost side of the upstream of the main road to reach the confluence point; detecting the number Q2 of queuing vehicles on the side road; if Q2 is less than or equal to Q-Q1, estimating the time T2 for Q2 vehicles on the side road to enter the main road; if T1 is greater than T2, the green light turn-on time is T2; otherwise, the green light turn-on time is T1; if Q2 is greater than Q-Q1, estimating the time T3 for Q-Q1 vehicles on the side road to enter the main road; if T1 is greater than T3, the green light turn-on time is T3; otherwise, the green light turn-on time is T1. According to the control method and system, the passing efficiency of the convergence area of the main road and the side road of the urban expressway entrance ramp and the operation efficiency of the urban expressway network under the heterogeneous traffic scene are improved, resource allocation is optimized, urban traffic is relieved and safe driving is guaranteed.
本发明公开了一种基于异构交通场景的快速路入口匝道控制方法及系统,检测主路汇合点下游的车辆数Q;若Q小于主路汇合点下游达到拥堵阈值的车辆数Q,则获取主路上游最外侧首辆车辆到达汇合点的最短时间T;检测辅路排队车辆数Q;若Q≤Q‑Q,则估计辅路上Q辆车进入主路的时间T;若T>T,则绿灯开启时间为T;否则,绿灯开启时间为T;若Q>Q‑Q,则估计辅路上Q‑Q辆车进入主路的时间T;若T>T,则绿灯开启时间为T;否则,绿灯开启时间为T。本发明的控制方法及系统提高了异构交通场景下城市快速路入口匝道主路与辅路的汇合区域的通行效率和城市快速路网络的运行效率,优化资源配置,缓解城市交通并保障安全驾驶。
Expressway entrance ramp control method and system based on heterogeneous traffic scene
基于异构交通场景的快速路入口匝道控制方法及系统
2020-06-09
Patent
Electronic Resource
Chinese
IPC: | G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS |
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