| 多用户类弹性需求随机用户均衡模型及其求解 |
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| 引用本文： | 况爱武,王正武,李炳林. 多用户类弹性需求随机用户均衡模型及其求解[J]. 长沙理工大学学报(自然科学版), 2007, 4(2): 16-20 |
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| 作者姓名： | 况爱武 王正武 李炳林 |
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| 作者单位： | 长沙理工大学,交通运输工程学院,湖南,长沙,410076 |
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| 基金项目： | 国家自然科学基金 , 交通部交通应用基础研究基金 , 湖南省自然科学基金 |
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| 摘 要： | 随机用户均衡交通分配模型统一了随机分配和Wardrop均衡的概念,可以获得更加符合实际的交通流分配结果.但传统的随机用户均衡模型既没有考虑弹性需求,也没有考虑出行者的社会经济特性.利用路网均衡建模理论构建了多用户类弹性需求随机用户均衡交通分配模型,证明了模型解的等价性和唯一性.基于无环简单路径搜索方法,设计了模型求解算法,并进行了算例计算与分析.
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| 关 键 词： | 随机用户均衡 弹性需求 多用户类型 算法 |
| 文章编号： | 1672-9331（2007）02-0016-05 |
| 修稿时间： | 2006-11-23 |
Model and its solution for stochastic user equilibrium traffic assignment with multiple user classes and variable demand |
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| KUANG Ai-wu,WANG Zheng-wu,LI Bing-lin. Model and its solution for stochastic user equilibrium traffic assignment with multiple user classes and variable demand[J]. Journal of Changsha University of Science and Technology(Natural Science), 2007, 4(2): 16-20 |
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| Authors: | KUANG Ai-wu WANG Zheng-wu LI Bing-lin |
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| Affiliation: | College of Traffic and Transportation Engineering,Changsha University of Science and Technology,Changsha 410076 ,China |
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| Abstract: | Based on the network equilibrium modeling approach, a stochastic user equilibrium model with multiple classes and variable demand is established in this paper. The equivalence and uniqueness of the equivalent mathematic planning model is also proved. A correspondent algorithm is designed for the model with the searching technique of routes and computation is carried out by the algorithm. |
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| Keywords: | stochastic user equilibrium variable demand multiple user classes algorithm |
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