So, this paper can discriminate the state of road traffic. The negative entropy flow model can ensure the extent of traffic management and the best management time should be taken when road is crowed.

在提出流体力学道路交通压力的概念基础上，选取适当的熵模型和关键的交通状态参数，运用非平衡态热力学的理论 方法建立道路交通系统熵模型和负熵流模型。

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