考虑自行车交通的非常规交叉口通行优化设计方法

Optimization Design Method for Bicycles at Tandem Unconventional Arterial Intersections

为了进一步提升非常规交叉口的通行能力,避免机动车和左转自行车在主信号处的冲突,针对U型回转交叉口、连续流交叉口、排阵式交叉口、借用出口车道左转交叉口、平行流交叉口提出行人自行车专用相位、在预信号处设置直行机动车预停车线和左转自行车过街通道、左转自行车二次过街、左转自行车跟随本向左转机动车一起过街等优化设计方法。此外,选择已落地实施的连续流交叉口,将现状方案和优化方案进行对比分析。结果表明,左转自行车优化设计方法有效避免左转自行车和机动车在主信号处的冲突,提高交叉口通行效率。

In order to further improve the capacity of unconventional intersections and avoid the conflict between motor vehicles and left-turn bicycles at the main signal.For U-turn,continuous flow intersection,tandem intersection,layouts and signal timings of exit lanes for left turn Intersections,parallel flow intersection,a series of optimization design methods are put forward,such as pedestrian bicycle phase,in the signal sets straight motor vehicle and the left turn bicycle crossing,and left-turn bicycles crossing the street twice,the turn left bicycle follow this motor vehicles turn left together to cross the street.In addition,select the continuous flow intersection that has been implemented to make a comparative analysis of the status quo and optimization scheme.The results shows that the proposed optimization design method can effectively avoid the conflict between left turning bicycles and motor vehicles at the main signal,and improve the traffic efficiency at the intersection.