| 城市快速路高阶流体模型实证研究 |
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| 引用本文： | 干宏程,孙立军,郝媛,陈建阳.城市快速路高阶流体模型实证研究[J].同济大学学报(自然科学版),2007,35(5):602-606. |
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| 作者姓名： | 干宏程 孙立军 郝媛 陈建阳 |
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| 作者单位： | 1. 上海理工大学,交通工程系,上海,200093;同济大学,道路与交通工程教育部重点实验室,上海,200092
2. 同济大学,道路与交通工程教育部重点实验室,上海,200092 |
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| 基金项目： | 国家科技攻关项目;上海市教委科学发展基金;上海理工大学校科研和教改项目 |
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| 摘 要： | 在回顾宏观流体模型的发展和分析宏观模型中的高阶流体模型的基础上，利用上海高架快速路实测交通数据，对快速路控制中常用的一种高阶流体模型进行了参数辨识和模型性能分析，验证了模型对于我国城市快速路的适用性；最后给出下一步研究的设想．研究结论可为我国城市快速路的规划、设计、运营和管理提供有力依据和数据支持．
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| 关 键 词： | 城市快速路 宏观流体模型 高阶流体模型 模型参数估计 交通控制 |
| 文章编号： | 0253-374X（2007）05-0602-05 |
| 修稿时间： | 2005-09-09 |
A Case Study of Urban Expressway Traffic Flow Based on High-Order Continuum Model |
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| GAN Hongcheng,SUN Lijun,HAO Yuan,CHEN Jianyang.A Case Study of Urban Expressway Traffic Flow Based on High-Order Continuum Model[J].Journal of Tongji University(Natural Science),2007,35(5):602-606. |
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| Authors: | GAN Hongcheng SUN Lijun HAO Yuan CHEN Jianyang |
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| Institution: | 1. Department of Transportation Engineering, University of Shanghai for Science and Teehonolgy, Shanghai 200093 China; 2. Key Laboratory of Road and Traffic Engineering of the Ministry of Education, Tongji University, Shanghai 200092,China |
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| Abstract: | This paper first presents a brief literature review of the existing macroscopic traffic flow models for expressways.And then,based on the real traffic data for both congested and uncongested flow of the expressways in Shanghai of China,an investigation is conducted on the modeling performance of the Papageorgiou model,a commonly used high-order continuum model.Parameter identification of the model is formulated as a parameter optimization problem which is solved by a heuristic searching procedure.Moreover,a stability analysis with respect to parameter changes is made.Analysis results show the model has a satisfactory performance in modeling the complicated non-linear urban expressway traffic flow behaviors in China.This paper's work can support the design of the expressway traffic control system. |
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| Keywords: | urban expressways macroscopic traffic flow model high-order continuum model parameter identification traffic control |
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