西部地区公路建设区划理论研究

从以大区域进行规划的经济发展思路出发,提出公路建设区划的概念和公路建设区划理论基础,并建立西部公路网合理规模评价指标体系,利用主成分分析方法将指标进行降维,避免了多指标间存在的相关性及信息重叠性的不足,并对西部地区的公路发展水平进行评价。再利用降维后新的互不相关的综合主成分指标体系替代原先存在较多的信息重叠及相关关系的评价指标,对西部各省区的公路发展进行聚类分析。聚类分析结果可用于西部地区公路网合理规模的确定。该方法不但能够使原来复杂的问题简单化,而且所得结论具有客观、可信、较有说服力,使西部地区公路网合理规模的确定具有针对性和可操作性。

Theoretical Research on Highway Regionalization In Western China

The paper put forward the idea and theory of highway regionalization.The evaluation indexes system was established,and principal component analysis was used to lower dimensions,and it can eliminate the correlation and information overlaps lying in multi-indexes.Cluster analysis was used to classify these regions into several categories according to the new indexes obtained from PCA.The results can be used to predicate the reasonable scale of highway network in the west.The results show that this method can ...