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考虑交通量随机波动的随机用户均衡配流模型

, PP. 1408-1413

Keywords: 交通运输系统工程,随机用户均衡,交通量概率分布,贝叶斯定理,随机效用理论

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Abstract:

研究了随机用户均衡路网中交通量的随机波动现象。基于随机效用理论,运用贝叶斯定理构建了可以反映随机用户均衡路网中路径路段交通量概率分布的交通配流模型,避免了交通量的随机性在交通配流模型中被忽略的问题。侧重分析了路网中驾驶员的随机路径选择行为以及道路通行能力的不确定性对交通量波动的影响。设计了一种马科夫链-蒙特卡洛算法用来根据交通量概率分布估计路径路段交通量的统计特征。在一个中等规模路网上对提案模型进行了验证,结果表明:模型可以有效地评估出路径选择行为以及通行能力不确定性等因素对交通量波动的影响。

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