It is of great theoretical significance and application value to study the crossing time. Firstly the moving characteristics of the vehicles and the pedestrians at the non-intersection crosswalks are analyzed; secondly average crossing delay and crossing time are obtained by using the acceptance gap theory. At last, the time of crossing pedestrians and the passing vehicles can be acquired by simulation software of VISSIM, which can make the warrant of signal control. The simulation results show that when the vehicle flow is more than 2400veh/h in the bi-directional and four lane minor road, it is proper for pedestrians to cross street with signal control crosswalks.%分析了城市道路无信号控制路段人行横道处行人和机动车的运行特性,针对行人利用可穿越间隙过街的特性得出行人的平均过街延误和过街时间.运用vissim软件仿真得出路段人行横道处不同的机动车量情况下行人的过街时间和机动车通过人行横道的时间,从而得到无信号控制路段人行横道改为信号控制的依据.仿真结果表明:在双向4车道的次干路中,当机动车流量超过2400辆/h时,将人行横道改为信号控制时更适合行人过街.
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