| 考虑可靠性的降级路网最优路径搜索方法 |
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| 引用本文： | 夏云龙,王正武,王 杰. 考虑可靠性的降级路网最优路径搜索方法[J]. 交通科学与工程, 2013, 0(4): 78-83,104 |
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| 作者姓名： | 夏云龙 王正武 王 杰 |
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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410004 |
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| 基金项目： | 国家自然科学基金项目（51278068,51208064）;湖南省研究生科研创新项目（CX20118351） |
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| 摘 要： | 针对路网降级时路网出行时间的随机性和可靠性对出行者路径选择影响较大的问题，研究了降级路网可靠性路径的选择方法．基于BPR路段出行时间模型，构建了降级路网路径出行时间的均值模型及其可靠度模型．以路径出行时间最小、路径出行时间最可靠为目标，构建了路径选择的双目标加权规划模型，设计了基于改进蚁群算法的模型求解算法．算例分析表明：该算法能快速获取可靠的路径．
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| 关 键 词： | 交通工程 降级路网 路径搜索 时间可靠性 |
Optimal path search on the degradable road network considering the reliability |
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| XIA Yun-long,WANG Zheng-wu,WANG Jie. Optimal path search on the degradable road network considering the reliability[J]. Journal of Transport Science and Engineering, 2013, 0(4): 78-83,104 |
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| Authors: | XIA Yun-long WANG Zheng-wu WANG Jie |
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| Affiliation: | (School of Traffic and Transportation Engineering,Changsha University of Seience ＆ Technology,Changsha 410004,China) |
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| Abstract: | Random and reliability of the travel time in the degradable road network will more seriously influence the choice of the travel path, so the optimal path choice model is built in the degradable road network. The mean value model and the reliability model on the path travel time is set up based on BPR model which is a model on the link travel time in the degradable road network. Taking into account the factors of reliability and travel time, a bi-objective path selection model is devised. Using the improved ant colony algorithm,the bi-objective weighted model is solved. The case shows that the improved algorithm can supply quickly the reliable path. |
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| Keywords: | traffic engineering degradable road network path search time reliability |
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