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区间阻抗下的多路径交通分配
引用本文:周和平,王芳,成军.区间阻抗下的多路径交通分配[J].长沙理工大学学报(自然科学版),2014(3):1-5.
作者姓名:周和平  王芳  成军
作者单位:长沙理工大学 交通运输工程学院,湖南 长沙,410004
基金项目:国家自然科学基金资助项目,交通运输部应用基础研究项目
摘    要:为了研究区间阻抗下的多路径交通分配,首先定义区间阻抗下节点与路径的鲁棒成本;然后在鲁棒成本概念基础上建立鲁棒最短路模型,并重新定义了区间阻抗下的有效路径;接着依据有效路径集的鲁棒成本,改进Logit模型,确定每条有效路径的选择概率,由此得到多路径交通分配结果。并用一个算例对本研究提出的方法进行了验证,结果合理有效,且具有实际应用意义。

关 键 词:区间阻抗  鲁棒成本  多路径交通分配

Multipath traffic assignment under interval-valued impedance
ZHOU He-ping,WANG Fang,CHENG Jun.Multipath traffic assignment under interval-valued impedance[J].Journal of Changsha University of Science and Technology:Natural Science,2014(3):1-5.
Authors:ZHOU He-ping  WANG Fang  CHENG Jun
Institution:ZHOU He-ping;WANG Fang;CHENG Jun;School of Traffic and Transportation Engineering,Changsha University of Science and Technology;
Abstract:To study the multipath traffic assignment under interval-valued impedance,the robust cost of the nodes and paths are defined.A robust shortest model is established based on the definition of the robust cost,and the effective path under interval-valued impedance is redefined.The Logit model is improved and the choice probability of each effective path is determined according to the robust cost of the effective path set,thus the multipath traffic assignment results are obtained.Finally an example is given to verify the proposed method,the result is proved to be reasonable,effective and it has a practical significance.
Keywords:interval-valued impedance  robust cost  multipath traffic assignment
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