The invention discloses an intersection entrance and exit lane direction dynamic control method under automatic driving, and belongs to the field of intelligent traffic. In an automatic driving environment, all lanes are free turning lanes (straight, left and right shared lanes). The method comprises the following steps: collecting entrance and exit lanes, moments and speeds of vehicles entering an intersection area, calculating average speeds, queuing lengths and lane utilization rates of the vehicles in all directions, and judging whether the traffic states of the entrance and exit lanes in different directions are congested or not according to the average speeds, queuing lengths and lane utilization rates. If the entrance and exit lanes in the same direction are in idle and crowded states respectively, the traffic directions of the idle lanes are changed. And the number of specific changed lanes and the lane direction change duration are calculated. If the entrance and exit lane in the same direction is in other states, the lane direction keeps the original state. And after the conversion duration is over, next dynamic control judgment is carried out. According to the method, lane idling is avoided by changing the lane direction, the lane utilization efficiency is improved, and lane dynamic control and effective road resource allocation are realized.
本发明公开了一种自动驾驶下交叉口进出口车道方向动态控制方法,属于智能交通领域。在自动驾驶环境下,且车道全部为自由转向车道(直、左、右合用车道)。采集车辆进入交叉口区域的进、出口道、时刻与速度,并计算各方向车辆平均速度、排队长度与车道利用率,并依此判断不同方向的进出口车道交通状态是否为拥堵。如同一方向进出口车道分别处于闲置和拥挤状态,则闲置车道通行方向发生变换。并计算具体变换车道数量与车道方向转换持续时间。如同一方向进出口车道处于其他状态,车道方向保持原状。当转换持续时间结束后,进行下一次动态控制判断。本发明方法通过改变车道方向避免车道闲置,提高车道利用效率,实现车道动态控制有效分配道路资源。
Dynamic control method for intersection entrance and exit lane direction under automatic driving
一种自动驾驶下交叉口进出口车道方向动态控制方法
2022-06-24
Patent
Electronic Resource
Chinese
IPC: | G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS |
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