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单向交通组织可以改善城市交通拥堵和提高路网利用率,因此,在交通组织管理方案实施前就应对其进行评价与完善,综合分析道路单向运行后的各交通参数,优化单向交通方案,是单向交通组织成功的必要前提。采用美国Caliper公司开发的交通软件TransCAD,对单向交通组织方案进行仿真,通过对比评价组织方案实施后的综合交通效益,确定单向交通组织方案的优劣。 相似文献
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文章对城市交通拥堵及其解决措施进行了探讨,为优化单商业中心城市交通资源使用,缓解城市交通拥堵,提出建立多个次级商业中心的设想和实现方式。并建立简单模型对单商业中心模式与多商业中心模式进行比较分析,证明从解决交通问题的角度考虑,城市采取多商业中心模式优于单商业中心模式。 相似文献
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从交通文化角度看荷兰绿色交通发展的启示 总被引:4,自引:4,他引:0
本文以荷兰1995年和2011年的自行车交通发展对比为主线,从交通文化的角度剖析荷兰绿色交通的特点,深入分析荷兰交通枢纽周边交通规划、路权分配以及自行车交通文化的形成,以期通过交通文化的阐释为城市交通拥堵问题的缓解提供思路。 相似文献
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现阶段我国城市发展中,城市交通问题已经是影响社会发展的重要关键点,我国各个城市中为了可以更好的缓解交通压力问题,均投入大量的资金与人力,来对城市道路的整体规划与布局等方面进行优化,同时形成了各种科学合理的流程与标准。稳定城市经济发展的重点便是科学合理的规划城市交通设计与布局,基于此,本文主要对城市交通布局与规划进行分析总结,探讨了城市交通道路合理规划与布局的对策,希望可以为我国城市交通道路建设提供可行性参考意见。 相似文献
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本文在分析工业发达国家和发展中国家在马车交通时代、小汽车交通时代交通拥堵历史以及成因的基础上,对我国不同阶段的交通拥堵特征进行概括,得出"交通关系不顺,路权分配不公"是引发交通拥堵根本原因的结论,最后,从五个方面提出缓解城市交通拥堵的对策。 相似文献
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文章针对广州市道路系统规划的基本状况及存在的问题,结合国外城市道路交通规划建设及管理经验,提出了基于小尺度道路网、合理道路等级级配和快速路系统的城市道路交通规划建设优化措施及建议,为缓解城市交通拥堵提供理论依据。 相似文献
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The need for acquiring the current-year traffic data is a problem for transport planners since such data may not be available
for on-going transport studies. A method is proposed in this paper to predict hourly traffic flows up to and into the near
future, using historical data collected from the Hong Kong Annual Traffic Census (ATC). Two parametric and two non-parametric
models have been employed and evaluated in this study. The results show that the non-parametric models (Non-Parametric Regression
(NPR) and Gaussian Maximum Likelihood (GML)) were more promising for predicting hourly traffic flows at the selected ATC station.
Further analysis encompassing 87 ATC stations revealed that the NPR is likely to react to unexpected changes more effectively
than the GML method, while the GML model performs better under steady traffic flows. Taking into consideration the dynamic
nature of the common traffic patterns in Hong Kong and the advantages/disadvantages of the various models, the NPR model is
recommended for predicting the hourly traffic flows in that region. 相似文献
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Jin‐Su Mun 《运输评论》2013,33(2):231-249
Abstract This paper provides a review of the traffic performance models for dynamic traffic assignment (DTA) and it identifies the strength and weakness of existing models. Requirements for traffic performance models are identified and various forms of existing traffic performance models for DTA are reviewed and analysed according to the requirements. Non‐linear travel time models are shown to have some deficiencies that make them unsuitable for the analysis of time‐varying transportation networks. Even though linear‐type travel time models are identified as good candidates for the analysis of dynamic transportation networks, they have limitations from the practical point of view that travel time increases only linearly with the amount of traffic on the link. This poses a dilemma and it seems to be one whose resolution is an imminent precondition for DTA modelling to progress in a way that is both theoretically coherent and plausible in practical terms. 相似文献