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

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

1.
复旦大学力学与工程科学系, 上海 200433
2. 嘉兴广播电视大学, 嘉兴 314000

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
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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

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

1.
Department of Mechanics and Engineering Science, Fudan University, Shanghai 200433, China
2. Jiaxing TV and Radio University, Jiaxing 314000, China

Funds: The project was supported by the National Natural Science Foundation of China (11002035).

摘要

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.
- 交通流模型 /
- 实测数据 /
- 参数优化 /
- 拟合优度
Abstract: Traffic flow models are important means to describe various complex traffic procedures and to establish intelligence traffic systems of urban freeway. Generally the formation of a traffic flow model requires massive observation as well as in-depth analysis of real road traffic. Empirical data are indispensable to identify the parameters of the corresponding model. It is drawn in this paper that 210920 "car velocity-headway distance" data pairs are obtained from the long time video recordings of urban freeway in four Chinese cities. Three traffic flow data-samples are made up of parts of these measuring data and are applied to an optimization study of several manifold well-known traffic flow velocity-density models. Some qualitative and quantitative results of the optimal free velocity value in the models have been obtained. The superiorities of modified Kerner-Konhauser equilibrium function and Payne's one are found in simulating the measuring data under the traffic condition of be free and be crowd, respectively, while Greenshields model (i.e. 1D pipe fluid model when m=3) can give the satisfying results for the measuring data when the traffic condition is between free and crowd.
- traffic flow model /
- measuring data /
- optimization of parameter /
- superiority of simulation

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参考文献(19)

戴世强, 冯苏苇, 顾国庆. 交通流动力学: 它的内容、方法和意义. 自然杂志, 1997, 19: 196-201 (Dai Shiqiang, Feng Suwei, Gu Guoqing. Dynamics of traffic flow: its content, methodology and intent. Chinese J of Nature, 1997, 19: 196-201 (in Chinese)

Greenshields BD. A study of highway capacity. Highway Res Board Proc, 1934, 14: 448-477

Greenberg H. An analysis of traffic flow. Ops Res, 1959, 7: 79-85

Underwood RT. Speed, Volume and Density Relationships. Quality and Theory of Traffic Flow. Connecticut: New Haven, 1961. 141-188

Payne HJ. Model of freeway traffic and control. Math Methods of Public Systems, 1971, 1: 51-61

Kerner BS, Konhauser P. Cluster effect in initially homogeneons traffic flow. Phys Rev E, 1993, 48: 2335-2338

Lee HY, Lee HW, Kim D. Origin of synchronized traffic flow on highways and its dynamic phase transitions. Phys Rev Lett, 1998, 81: 1130-1133

吴正. 低速混合型城市交通的流体力学模型. 力学学报, 1994, 26(1): 149-157 (Wu Zheng. A fluid dynamics model for the low speed traffic systems. Acta Mechanica Sinica, 1994, 26(1): 149-157 (in Chinese)

Zhang HM. A theory of non-equilibrium traffic flow. Transpn Res B, 1998, 32: 485-498

Jiang R, Wu QS, Zhu ZJ. A new continuum model for traffic flow and numerical tests. Transpn Res B, 2002, 36: 405-419

Xue Y, Dai SQ. Continuum traffic model with the consideration of two delay time scales. Phys Rev E, 2003, 68: 066123

Huang HJ, Tang TQ, Gao ZY. Continuum modeling for two-lane traffic flow. Chinese Journal of Theoretical and Applied Mechanics, 2006, 22: 132-137

Schonhof M, Helbing D. Criticism of three-phase traffic theory. Transpn Res B, 2009, 43: 784-797

吴正, 郭明旻等, 大城市高架路实测数据分析与交通流模型研究. 力学学报, 2010, 42(4): 789-797 (Wu Zheng, Guo Mingmin, et al. Measured data analysis of urban expressway and research on traffic flow models. Chinese Journal of Theoretical and Applied Mechanics, 2010, 42(4): 789-797 (in Chinese)

吴胜春, 郑贤清, 郭明旻等. 国内典型大城市快速路交通流实测. 中国科学(物理学力学天文学), 2011, 41: 791-800 (Wu Shengchun, Zheng Xianqing, Guo Mingmin, et al. Survey report on urban freeway traffic flow of several typical cities in China. Scientia Sinica (Physica,Mechanica {& Astronomica}), 2011, 41: 791-800 (in Chinese)

林展熙, 吴正, 杨朝晖. 基于上海延安高架录像资料的交通流实测研究. 水动力学研究与进展A, 2010, 25: 683-693 (Lin Zhanxi, Wu Zheng, Yang Chaohui. A comparative study on traffic flow models based on video of Yanan Expressway of Shanghai. J Hydrodyn A, 2010, 25: 683-693 (in Chinese)

林展熙, 郭明旻, 郑贤清. 基于实测数据的交通流模型比较研究. 力学学报, 2010, 42(5): 848-855 (Lin Zhanxi, Guo Mingmin, Zheng Xianqing. A comparative study on traffic flow models based on measured data. Chinese Journal of Theoretical and Applied Mechanics, 2010, 42(5): 848-855 (in Chinese)

吴可非, 邝华, 孔令江等. 元胞自动机FI和NS交通流混合模型的研究. 广西师范大学学报, 2005, 23(4): 8-12 (Wu Kefei, Kuang Hua, Kong Lingjiang, et al. Study of a cellular automaton FI-and-NS mixed model for traffic flow. J of Guangxi Normal University, 2005, 23(4): 8-12 (in Chinese)

吴可非, 孔令江, 刘慕仁. 双车道元胞自动机NS和WWH交通流混合模型的研究. 物理学报, 2006, 55(2): 6275-6280 (Wu Kefei, Kong Lingjiang, Liu Muren. The study of a cellular automaton NS and WWH mixed model for traffic flow on a two-lane roadway. Acta Physical Sinica, 2006, 55(2): 6275-6280 (in Chinese)

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