| 路段容量随机下降路网的行程时间可靠性 |
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| 引用本文： | 况爱武,欧阳媛,李炳林.路段容量随机下降路网的行程时间可靠性[J].长沙交通学院学报,2007,23(3):15-19. |
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| 作者姓名： | 况爱武 欧阳媛 李炳林 |
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| 作者单位： | 1. 长沙理工大学,交通运输学院,湖南,长沙,410076
2. 湖南娄底路桥建设有限责任公司,湖南,娄底,417000 |
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| 基金项目： | 交通部交通应用基础研究基金 |
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| 摘 要： | 基于均匀分布的路段容量,分析了退化路网中路段行程时间的随机变动,构建了概率用户均衡交通分配模型,证明了等价数学规划模型解的等价性,设计了模型求解算法.在此基础上,建立了路段、路径及OD对行程时间可靠性计算模型.最后,在一简单网络上进行了计算分析.
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| 关 键 词： | 随机路段容量 行程时间可靠性 均匀分布 概率用户均衡 |
| 文章编号： | 1000-9779（2007）03-0015-05 |
| 收稿时间： | 2007-05-14 |
Travel time reliability analysis on road network with degradable link capacity |
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| KUANG Ai-wu,OUYANG Yuan,LI Bing-lin.Travel time reliability analysis on road network with degradable link capacity[J].Journal of Changsha Communications University,2007,23(3):15-19. |
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| Authors: | KUANG Ai-wu OUYANG Yuan LI Bing-lin |
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| Abstract: | The random variation of link travel time in degradable road network is analyzed by assuming that link capacity follows a uniform distribution.At the same time,a probabilistic user equilibrium traffic assignment model is established,the equivalence of the equivalent mathematic planning model is proved and a correspondent algorithm is designed in this paper.A calculating model of link,route and OD pair travel time reliability is proposed by taking account of a specified interval of time and the structure of road network. In the end,some computations and analyses are carried out to demonstrate the feasibility of the proposed model and algorithm. |
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| Keywords: | stochastic link capacity travel time reliability uniform distribution probabilistic user equilibrium |
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