| 基于重要度和可靠度的路段质量排序 |
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| 引用本文： | 黄正锋.基于重要度和可靠度的路段质量排序[J].重庆交通大学学报(自然科学版),2009,28(4):742-744. |
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| 作者姓名： | 黄正锋 |
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| 作者单位： | 西南交通大学,交通运输学院,四川,成都,610031 |
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| 摘 要： | 提出将路段质量定义为路段重要度(LS)和路段通行能力可靠度(LCR)的线性加权和,作为城市道路单元或公路路段关键性的衡量指标,有助于确定亟需改善的道路单元。针对路段通行能力服从连续分布函数的假设,基于Monte Carlo模拟求解随机用户均衡配流模型,从而可以通过灵敏度分析(SA)方法计算LS,使用LCR分布函数计算LCR,最终确定出随机路网的路段质量排序。以一个小型网络作为算例,验证路段质量排序的可行性。
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| 关 键 词： | 路段质量 路段通行能力可靠度 Monte Carlo模拟 随机用户均衡配流 灵敏度分析 |
Order of Link Trait Based on Significance and Reliability |
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| HUANG Zheng-feng.Order of Link Trait Based on Significance and Reliability[J].Journal of Chongqing Jiaotong University,2009,28(4):742-744. |
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| Authors: | HUANG Zheng-feng |
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| Institution: | HUANG Zheng-feng(School of Traffic & Transportation,Southwest Jiaotong University,Sichuan Chengdu 610031,China) |
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| Abstract: | The concept of link trait is introduced.Link trait is defined as the linear weighted sum of the link significance and the link capacity reliability.As the critical evaluation indicator of urban highway and road sections,the link trait is helpful to ensure the road section which needs urgent improvement.The link capacities are assumed to be subject to a continuous distribution function and Monte Carlo simulation is used to solve the stochastic user equilibrium assignment model.The link significance is ascert... |
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| Keywords: | link trait link capacity reliability Monte Carlo simulation stochastic user equilibrium assignment sensitivity analysis |
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