主成分分析法在高速公路沥青路面使用性能评价中的应用

在多指标综合评价中，主成分分析方法是一种较为客观的综合评价方法。利用这种方法对高速公路沥青路面使用性能进行综合评价，不仅能综合反映各指标对路面评价值影响强弱的信息，而且可以确定各指标的较客观的权重，由此尽量地避免评价过程中主观因素的影响，为正确进行高速公路沥青路面养护决策提供了保证。

Application of Primary Component Analysis to the Evaluation of Expressway Asphalt Pavement life

Among the methods of multiple indexes comprehensive evaluation,primary component analysis(PCA) is a relatively objective one.By using PCA in synthetically evaluating expressway asphalt pavement life,not only the information of expressway asphalt pavement life can be reflected synthetically,but also the objective weights of various indicators can be determined which are usually needed by the decision makers.By using PCA,it could avoid the infection of subjective factors,and could make preciseness expressway asphalt pavement maintain decision-making.