本文统一评述了四种面向宏观控制的高速公路多车道交通模型,这四种模型是独立推导确立的。结果表明:上述四种模型都是以共同的交通流三个基本定律(守恒方程、交通量与密度方程、平均速度动态方程)中推导出来的。在每一种模型的基础上,可以确定若干个最佳控制问题。文章比较详细地讨论了模型在防止或消除高速公路交通拥挤时的效果问题。论文给出了一个结论:可以用一个多层次控制结构作为一种实际的高速公路交通控制系统有效结构的基础 This paper reviews four kinds of expressway multi-lane traffic models for macro-control, which are established independently. The results show that the above four models are derived from the three basic laws of common traffic flow (conservation equation, traffic volume and density equation, average velocity dynamic equation). Based on each model, several best control problems can be identified. The article discusses in more detail the effectiveness of the model in preventing or eliminating freeway traffic congestion. The thesis gives a conclusion: a multilevel control structure can be used as the basis of an effective highway traffic control system