The objectives of city road network planning and shortcomings of the available programming models were analyzed.
小世界模型为研究城市道路网络的拓扑结构和内在特征等提供了新的视角和方法。
Four auxiliary models are proposed, and a rural logistics model is given based on the real road network with the shortest path.
提出了四个辅助模型，并最终给出基于现实路网路径最短的物流优化模型。
At last, this article brings up five models about the region road network construction sequence.
最后，本文提出了区域公路网建设序列的五种模型。
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