This paper first assort the topography of different district with the fuzzy classification, and then the expanding coefficient is gotten by the model of linear regression, so we can get more accurate information for the network planning.

• 本文从展线系数的特性分析入手,首先采用模糊聚类分析法进行地形分类,然后建立多元线性回归模型来确定各个区域的展线系数,有利于为路网决策提供更为准确的信息。