The utilization of this data model in some city traffic information grid confirms its advantages of self-contained description, legible structure and practicability.
通过在某市交通信息网格项目中的应用，表明该模型具有信息完备、结构清晰、简洁实用等优点。
Taking Lanzhou, a valley city, as a case, a quantitative analyse has been made to the environment effect of traffic consumption structure changing from 1990 to 2002 by using grey correlation model.
为此以河谷型大城市兰州市为例，利用灰色关联度模型对1990 ~ 2002年间交通消费结构变动所产生的环境效应作了定量分析。
According to the city road network capacity restriction, Put forward the optimization model of the traffic target structure, and analyze the meaning of the model.
提出基于城市道路网络容量约束下的交通目标结构优化模型，分析了模型的意义。
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