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城市轨道交通枢纽换乘供需一致性研究

Keywords: 轨道交通,线网形态,枢纽换乘需求,分形理论,一致性指数

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Abstract:

基于分形理论,提出了代表轨道交通线网中枢纽供给能力的站点-半径维数、代表枢纽换乘需求的换乘需求-半径维数,通过分析分形维数的一致性达到量化枢纽供需一致性的目的.最后以北京市轨道交通线网为算例,验证了模型和算法的有效性,并对算法中涉及的重要参数进行了灵敏度分析,讨论了出行行为对于分形维数和一致性指数产生的影响.结果表明:分形维数及分形一致性指数能较好地描述轨道交通线网的供需一致性特征.

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