| 基于路径的算法求解考虑排放的交通分配模型 |
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| 引用本文： | 熊伟,严新平.基于路径的算法求解考虑排放的交通分配模型[J].交通运输工程学报,2009,9(3). |
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| 作者姓名： | 熊伟 严新平 |
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| 作者单位： | 武汉理工大学,水路公路交通安全控制与装备教育部工程研究中心,湖北,武汉,430063
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| 基金项目： | 国家973计划项目，国家留学基金项目 |
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| 摘 要： | 分析了非可加路径费用的交通分配问题,考虑了排放对传统交通分配模型的影响,在Venigalla等研究基础上,给出了在不同发动机启动模式下考虑排放的交通分配模型,并采用基于路径的梯度投影算法(GP)和非集计的单纯分解算法(DSD)进行模型求解.数值验证结果表明:GP所占的CPU时间大致为DSD的1/25,所使用的路径为DSD的1/5,这两种基于路径的算法得出数值最优解的收敛速度比基于Frank-Wolfe(FW)的算法要快,适用于求解大规模非可加路径费用的交通分配问题.
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| 关 键 词： | 交通规划 排放模型 基于路径的算法 非可加路径费用 |
Path-based solution algorithms of traffic assignment model considering emission |
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| XIONG Wei,YAN Xin-ping.Path-based solution algorithms of traffic assignment model considering emission[J].Journal of Traffic and Transportation Engineering,2009,9(3). |
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| Authors: | XIONG Wei YAN Xin-ping |
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| Institution: | Engineering Research Center of Transportation Safety of Ministry of Education;Wuhan University of Technology;Wuhan 430063;Hubei;China |
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| Abstract: | The traffic assignment of non-additive path costs was analyzed.Emission effects on traditional traffic assignment model were considered.Based on Venigalla's research,a traffic assignment model considering emissions under different operating modes of engine was put forward.Two path-based algorithms such as gradient projection(GP) algorithm and disaggregated simplicial decomposition(DSD) algorithm were adopted to solve the mathematic model.Analysis result indicates that the CPU time consumed by GP is 1/25 of ... |
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| Keywords: | transportation planning emission model path-based algorithm non-additive path cost |
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