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城市快速路交通流速密关系模型优化研究

吴正 郭明旻 许谦

吴正, 郭明旻, 许谦. 城市快速路交通流速密关系模型优化研究[J]. 力学学报, 2012, (4): 709-717. doi: 10.6052/0459-1879-11-377
引用本文: 吴正, 郭明旻, 许谦. 城市快速路交通流速密关系模型优化研究[J]. 力学学报, 2012, (4): 709-717. doi: 10.6052/0459-1879-11-377
Wu Zheng, Guo Mingmin, Xu Qian. STUDY ON OPTIMIZATION OF TRAFFIC FLOW VELOCITY-DENSITY MODELS FOR URBAN FREEWAY[J]. Chinese Journal of Theoretical and Applied Mechanics, 2012, (4): 709-717. doi: 10.6052/0459-1879-11-377
Citation: Wu Zheng, Guo Mingmin, Xu Qian. STUDY ON OPTIMIZATION OF TRAFFIC FLOW VELOCITY-DENSITY MODELS FOR URBAN FREEWAY[J]. Chinese Journal of Theoretical and Applied Mechanics, 2012, (4): 709-717. doi: 10.6052/0459-1879-11-377

城市快速路交通流速密关系模型优化研究

doi: 10.6052/0459-1879-11-377
基金项目: 国家自然科学基金资助项目(11002035).
详细信息
  • 中图分类号: O39;U491.112

STUDY ON OPTIMIZATION OF TRAFFIC FLOW VELOCITY-DENSITY MODELS FOR URBAN FREEWAY

Funds: The project was supported by the National Natural Science Foundation of China (11002035).
  • 摘要: 从实测得到的210920中国城市快速路“车速-车头间距”数据中, 选取包含26773条数据的3个样本作为不同类型交通流的代表, 对多个交通流“速-密关系”模型 进行参数优化和拟合优度比较研究, 给出优化模型参数的定性和定量规律. 修正形式的 Kerner-Konhauser平衡函数和Payne平衡函数通过参数优化, 分别在畅通和拥挤条件下具有 优度相对最高的拟合结果, Greenshields模型(等价地, m=3时的一维管流模型)则对介于 两种条件之间的实测数据具有优度相对最高的拟合结果.

     

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出版历程
  • 收稿日期:  2011-12-19
  • 修回日期:  2012-02-22
  • 刊出日期:  2012-07-18

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