Dimension-reduced Processing of Western China Road and Transport Scientific and Technical Project Evaluation Index System Based on Factor Analysis

In order to solve the problems of pertinency and quantization within evaluation indexes of transport scientific and technical projects,the value of indexes were calculated and the physical meanings were got to find out the intrinsic factors contained in these indexes through analysis of pertinency of indexes,dimension-reduced processing by factor analysis method,and analysis of loading matrix for western China road and transport scientific and technical project evaluation index system.The numbers of indexes were lowered from 10 to 5 through dimension-reduced processing by combination of theoretical analysis with practical application.The new indexes comprised a majority of information of old indexes at the same time.