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基于GM-GRNN国家高速公路网规模预测研究

, PP. 141-146

Keywords: 交通工程,国家高速公路网,规模预测,GM-GRNN模型,资源承载力,地理特征影响系数

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Abstract:

通过对国内外公路网规模研究的分析,指出了传统预测方法的不足.针对我国公路网规模预测中样本量少、数据干扰大的特点,首次引入资源承载力和地理特征影响系数概念,在充分考虑各种可量化因素的基础上,提出了GM-GRNN公路网规模预测模型,即是将灰色预测方法和人工神经网络中的广义神经网络相结合的预测方法,充分发挥了GM和GRNN模型的优点,避免了理论误差,检验结果表明,该方法具有较高的精度.最后分析预测出我国国家高速公路网的总体规模.

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