中文摘要：

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。

英文摘要：

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