农村公路是公路网结构金字塔的塔基，随着我国农村公路建设步伐的不断加快，农村公路的交通安全问题引起了越来越多的重视。
Rural road is the road network structure of the pyramid tower base, with the pace of rural road construction is accelerating, the rural road safety problems caused by more and more attention.
公路网合理等级结构的确定，是公路网规划的组成内容之一，也是公路网布局优化的重要组成内容之一。
The determination of the rational highway grade structure is one part of highway network planning, it also is an important content of highway network layout optimization.
我国高速公路网的建设飞速进行，对桥梁结构的要求越来越高。
With national construct of express highway quickly developing, it requires bridge structures higher and higher.
本文针对农村公路网的地图表示及网路拓扑结构的提取和构建这两项关键技术，提出了一种新的高效实用的解决方案。
This article put forward an efficient scheme aimed at map express of country road network and construction of network topology structure.
公路网的连通度评价指标反映了网络中各节点的连通状况，体现了网络的结构特征。
The highway network connectivity evaluation index reflects connectivity of each node in network, and embodies the structure characteristic of network.
并运用单纯形方法对各规划年度的公路网等级结构进行了优化，通过综合分析得出客运需求高于货运的结论。
The grade structure of a road network in annual planning is optimized with the simplex method. Conclusions are reached through synthetic analysis.
区域公路网络结构的几何模型及计算机实现、最短路的计算及其辨识在交通量预测中起着重要的作用。
The geometric model and computer programming of local highway network plays an important role in traffic estimate, as well as the calculation of shortcut and its reorganization.
得出的公路网功能结构和发达国家相近，说明本论文的研究具有现实意义。
The functional structure of network of highways received is similar to developed countries. That proves the research of the paper has realistic meanings.
得出的公路网功能结构和发达国家相近，说明本论文的研究具有现实意义。
The functional structure of network of highways received is similar to developed countries. That proves the research of the paper has realistic meanings.
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