关于道路（网）时空饱和度的定义及它在高峰时段的实用计算公式

About the Definiton of Degree of Time-Space Saturation in the Network of Urban Road and Its Practical Calculation Formula in Peak Hour

本文提出了道路（网）时空饱和度的概念，并说明这个概念是传统的饱和度概念的拓广．然后我们研究了高峰时段城市车辆的跟车模型，进而得到道路（网）时空饱和度在高峰小时的计算公式．

In this Paper,we give the concept of degree of time-space saturaton and think this concept is a development of degreeof traditional saturation, then we study car-following model in peak haur in urban road, at last we obtain the calculationformula of degree of bine-space saturation in peak hour in the network of urban road.