在介绍高速公路交通流量调控理论的基础上，提出基于可变收费的流量调控方法。
Based the introduction of the theory of expressway traffic regulation, the paper give the traffic regulation method based variable pricing.
第二章主要阐述交通流的理论相关知识、当前常用的交通流量预测方法。
In the second chapter, correlative knowledge of the traffic flow theory and current traffic flow forecast methods are introduced.
许多电子地图都是依据理论速度计算时间，而不考虑每周和每天变化的交通流量。
Many digital maps use only signposted speeds to calculate journey times and take little account of the way traffic flows change during the week and at different times of the day.
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