信号控制路段行人二次过街设置标准

从时空资源利用角度和延误角度对有信号控制路段行人二次过街进行分析,在对路段行人信号配时方案设计基础上得到有信号控制条件下行人延误公式。在一定路宽、行人流量条件下,以行人延误小于其极限忍耐时间为判定标准,得出二次过街允许的机动车流量范围,在该范围内设置二次过街可兼顾道路时空资源的利用和行人安全。研究表明:与一次过街相比,二次过街可更有效利用道路时空资源,同时行人每次获得通行权所需等待时间显著减少。

Setting Criterion of Pedestrian Twice Crossing at Signalized Control Link

Authors analyzed the twice crossing from the use of spacetime resource and pedestrian delay,and built the formula of pedestrian delay based on the design of signal system for pedestrian crossing.Take the situation when pedestrian delay was less than his extreme endurance time as the criterion,the permitted vehicle volume range for twice crossing could be gotten if the width of road and pedestrian volume was definite.It was the range of vehicle volume set for pedestrian twice crossing which could ensure pedestrian safety while time-space resource could be utilized economically.The result shows that pedestrian twice crossing can utilize space-time resource more efficiently contrasting to once crossing;what's more,the waiting time of pedestrian to get the right to pass decreases.