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 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.
讲述了道路网规划的基本思想是疏解，并从道路等级结构、道路网密度和道路网的结构形式三个方面阐述了道路网规划应重视的基本内容。
Basic contents of road network planning are expounded from three aspects of road category scale, road network density and road network shape.
路网规划沿用原方格网形态，呈“四横六纵”干道路网结构。
Network planning to follow the original grid pattern, was "six vertical and four horizontal" dry road network structure.
路网规划沿用原方格网形态，呈“四横六纵”干道路网结构。
Network planning to follow the original grid pattern, was "six vertical and four horizontal" dry road network structure.
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