| 面向控制的城市快速路网宏观动态交通模型 |
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| 引用本文： | 干宏程. 面向控制的城市快速路网宏观动态交通模型[J]. 系统工程, 2007, 25(11): 1-5 |
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| 作者姓名： | 干宏程 |
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| 作者单位： | 上海理工大学,交通工程系,上海,200093 |
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| 基金项目： | 国家科技攻关计划;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： | 针对我国城市交通特点，在改进经典的高速道路网宏观交通流模型METANET的基础上，提出了面向控制的城市快速路网宏观动态交通模型。该交通模型能够更好地描述快速路出口匝道流出能力受限、快速路主线起始点车流以及快速路主线车速控制等现象。对上海高架快速路的实际交通流数据进行了仿真研究，结果表明该模型较好地反映了城市快速路交通流的动态演化特征，可以作为城市交通控制系统分析和设计的有力工具。
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| 关 键 词： | 城市快速路 宏观交通流模型 网络交通 动态交通控制 |
| 文章编号： | 1001-4098（2007）11-0001-05 |
| 收稿时间： | 2007-07-20 |
| 修稿时间： | 2007-07-20 |
A Macroscopic Traffic Model for Dynamic Urban Freeway Network Control |
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| GAN Hong-cheng. A Macroscopic Traffic Model for Dynamic Urban Freeway Network Control[J]. Systems Engineering, 2007, 25(11): 1-5 |
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| Authors: | GAN Hong-cheng |
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| Affiliation: | Department of Transportation Engineering,Shanghai University of Science and Techonolgy,Shanghai 200093,China |
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| Abstract: | Based on the analysis of the characteristics of urban freeway traffic in China, this paper improved the widely used macroscopic freeway network traffic model METANET, and proposed a macroscopic traffic model for dynamic urban free- way network control. The proposed model can better describe constrained out-flow at off-ramps, traffic flow behavior at mainstream origins, and travel flow behavior under the influence of dynamic speed limits. Simulation investigation of the model using real-world urban freeway traffic data at Shanghai, China, showed the satisfactory capability of the proposed model to describe the dynamic evolution of the urban freeway traffic. The proposed model provides a good tool for traffic control system design and analysis. |
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| Keywords: | Urban Freeways Macroscopic Traffic Flow Model Network Traffic Dynamic Traffic Control |
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