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城市客运交通结构生态效用双目标优化模型

, PP. 139-143

Keywords: 交通工程,结构优化模型,双目标规划法,客运交通,生态影响,交通效用

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Abstract:

分析了城市客运交通结构优化的目标。基于每种交通方式的生态特性与效用特性,利用目标规划法,建立了以生态影响最小为第1目标、交通效用最大为第2目标的双目标优化模型,并提出了相关约束条件。在模型的算法上,首先运用线性规划法求出了生态影响最小值与交通效用最大值,其次运用层次算法对模型进行求解,通过分析偏差值,使所求解合理化,符合现实情况。以大连市中心城区为例对模型进行了应用。结果表明,优化后的交通结构能够体现生态优先的原则,同时符合大连市实情。

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