基于主成分分析法的不同运输方式发展协调度计算

Coordinate Degree Calculation of Different Transportation Development Based on Principal Component Analysis Method

根据各种运输方式的系统构成,选取反映各种运输方式综合发展水平的量化指标,运用主成分分析法对有效性指标进行遴选,计算我国2005-2014年各运输方式的综合发展水平,并通过Pearson相关性分析了四种运输方式的相互影响因素。在此基础上建立各运输方式的综合发展水平协调度模型,对四种运输方式之间的协调状态进行分析,并提出相关建议。结果表明:航空运输与公路运输、铁路运输发展水平之间的相关性显著,水路运输与其他三种运输方式的发展水平存在较显著的相关性;四种运输方式间的静态协调系数为0.4694,表明目前四种运输方式虽然发展迅速,彼此之间的发展并不十分协调。

According to the system constitutions of various transport modes, some quantitative indicators to reflect the comprehensive pearson levels of the transport modes were analyzed, and selected with the principal component analysis method. 2005-2014＇s comprehensive development levels of the four modes of China were calculated, and the influencing factors of the four modes were analyzed with Pearson correlation method. On this basis, a coordination degree model for the comprehensive development level of each transportation mode was established, and the coordination state between the four modes was analyzed. Then, some suggestions were put forward. The results showed that the correlation was very obvious among air transport, road transport, and railway transport development level, and existed significant correlation among waterway transportation development level and the other three kinds of transportation modes. The coordination static coefficient of the four transportation modes was 0.4694. This result indicated that the current four kinds of the transportation modes developed rapidly, their development was not very coordination.