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本文在对现有交通量预测方法分析基础上，提出了利用主成分分析形成区域代表交通量的方法，并在实际公路网规划工作中得到了应用．
Based on the analysis of the existing traffic prediction methods, this paper proposes a method of using the principal component analysis to form the regional representative traffic volume, and has been applied in the actual road network planning.