本文运用主成分分析法对我国高速公路产业有效竞争现状进行了量化评价,指出高速公路产业规模经济与竞争活力不兼容的状态仍然存在,竞争态势不成熟,进而提出了构建高速公路产业有效竞争的相关建议。 In this paper, we use principal component analysis (PCA) to evaluate the status quo of the effective competition of expressway industry in our country, and point out that the incompatible status of scale economy and competitive vitality of the expressway industry still exists, the competition situation is immature, and then proposes to construct the effective competition of expressway industry Related suggestions.