Through analyzing the characteristic and function of Urban Road Management Information System, the paper gives a detailed introduction to the necessary working in the analysis demand phases.
本文以此为出发点，在分析城市道路管理信息系统特点和作用的基础上，对其需求分析阶段应作的工作做了较详细的介绍。
Resistance function of urban road is the key and difficult problem in traffic study. It plays a vitally important role in traffic assignment.
城市道路的路阻函数是交通研究中的关键点和难点，对交通分配起着至关重要的作用。
Through improving road network inner structure, we can increase its outer function, and remit urban transportation conflict of supply and need.
通过改善道路网的内在结构来提高道路网的外延功能可以从根本上来缓解城市交通供需矛盾。
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