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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.
This paper proposes the concept of road network saturation, and shows that this concept is the extension of traditional concept of saturation. Then we study the following-up model of urban vehicles during peak hours, and then get the formula of the hourly space-time saturation of road (network).