In fact, connotation and extension of the road net is blurry, it is a grey system.
事实上公路网综合水平的内涵和外延是不清晰的，是一个灰色系统。
The better effect is achieved by integrating two or more evaluation methods in road net evaluation.
将两种或两种以上的评价方法综合用于公路网评价能取得较好的效果。
So the most optimal path planning is regard as the problem of searching for roads which have the least cost in a road net.
所以，最优路径规划最终都可以归结为在特定的道路网络中搜索总代价最小的目标路径问题。
Because the (parameters) of the road net are variable, the estimation of link travel time should satisfy the real-time requirement.
由于路网参数不断变化，路段行程时间的估计必须满足实时性的要求。
The positive feedback effect between the traffic demand and the traffic supply makes the road net plan hard to suit the future traffic demand.
交通需求与交通供给之间的正反馈效应，使得路网规划方案难以适应交通需求的变化。
Discussions are made on how to make the best of limiting road area so as to improve bus transportation without increasing the road net density.
在此基础上探讨了在不增加道路网密度条件下，如何有效地利用路面面积提高公共汽车运行效率。
The optimum route planning is one of the best necessary functions for an applied vehicle navigation system which is based on the establishment of the topological structure of the road net.
对于一个实用的车载导航系统，最优路径规划是其必备的十分重要的功能，而道路网络拓扑结构的构建又是最优路径规划的基础。
The road-net data model describes the related information of road in order to support capturing and expressing the position information of moving object.
道路网数据模型是对各种道路相关信息进行描述以支持移动对象位置信息获取及表示的数据模型。
Expressway is the core of road-net construction, the scale of expressways decides the road transportation efficiency and cost.
高速公路是我国路网建设的核心，高速公路的建设规模决定了我国公路运输效率以及运输成本。
Expressway is the core of road-net construction, the scale of expressways decides the road transportation efficiency and cost.
高速公路是我国路网建设的核心，高速公路的建设规模决定了我国公路运输效率以及运输成本。
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