The invention relates to the technical field of traffic transportation planning, in particular to a roundabout signal timing method based on shift left turn and secondary parking. The timing method comprises the following steps: step 1, investigating geometric conditions and traffic volume of the roundabout; determining a displacement left turn lane layout; traffic signal lamps are arranged, and corresponding traffic signs and marked lines are arranged; 2, signal lamp phases are designed, and a two-phase traffic rule is adopted; and step 3, determining the passing time of straight-going and right-turning vehicles according to the passing time of the secondary left-turning vehicles by taking traffic non-conflict as a condition and taking the maximum passing capacity of the roundabout as a target, and determining a signal timing method of the roundabout. The method specifically comprises the steps of left-turn ring-entering vehicle timing, left-turn ring-exiting shifting vehicle timing, straight-going vehicle timing, street-crossing pedestrian timing and the like. By the adoption of the scheme, the problems that the traffic capacity of the roundabout is poor, traffic conflicts of the roundabout are serious, and average delay of vehicles is increased due to long phase period duration are solved.
本发明涉及交通运输规划技术领域,具体涉及一种基于移位左转与二次停车的环形交叉口信号配时方法。所述配时方法包括:步骤1、调查环形交叉口几何条件及交通量;确定移位左转车道布局;设置交通信号灯,设置相应的交通标志、标线;步骤2、信号灯相位设计,采用两相位通行规则;步骤3、以交通不冲突为条件,以环形交叉口通行能力最大为目标,根据二次左转车辆的通行时间确定直行和右转车的通行时间,确定环形交叉口信号配时方法,具体包括:左转移位入环车辆配时、左转出环移位车辆配时、直行车辆配时和过街行人配时等步骤。采用上述方案,本发明解决了环形交叉口通行能力差、环形交叉口交通冲突严重、相位周期时长较长导致车均延误增大等问题。
Roundabout signal timing method based on shift left turn and secondary parking
一种基于移位左转与二次停车的环形交叉口信号配时方法
2024-05-28
Patent
Electronic Resource
Chinese
IPC: | G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS |
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