| 基于快速路交通录像的交通流模型参数测量方法研究 |
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| 引用本文： | 吴正,朱辉,贾楠.基于快速路交通录像的交通流模型参数测量方法研究[J].复旦学报(自然科学版),2008,47(2):147-152. |
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| 作者姓名： | 吴正 朱辉 贾楠 |
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| 作者单位： | 复旦大学,力学与工程科学系,上海,200433 |
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| 摘 要： | 提出一种利用城市快速道路交通录像资料测量交通流模型中各种参数的方法.以北京市一个路段的实际录像资料为例,通过测量和分析获得Kerner非线性模型中的临界密度、宽运动堵塞的传播速度和Greenshields模型中的畅行速度等参数.结果显示,这是一种操作性强、成本很低且有多种应用前景的交通流测量新方法.
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| 关 键 词： | 交通流模型 测量 临界密度 宽运动堵塞 畅行速度 |
| 文章编号： | 0427-7104(2008)02-0147-06 |
| 修稿时间： | 2006年11月6日 |
Measuring Method Study of the Traffic Flow Model Parameters Based on Video Recording of Expressway Traffic |
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| WU Zheng,ZHU Hui,JIA Nan.Measuring Method Study of the Traffic Flow Model Parameters Based on Video Recording of Expressway Traffic[J].Journal of Fudan University(Natural Science),2008,47(2):147-152. |
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| Authors: | WU Zheng ZHU Hui JIA Nan |
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| Abstract: | A method is proposed to measure the various parameters of traffic flow models applying video tape information of urban expressway traffic. A practical example is based on some video data got from a section of a highway of Beijing. Through measurement and analysis the critical density of Kerner's non-linear model, the propagation speed of the wide moving jam and the unimpeded velocity of Greenshields's model are obtained. The results show that the new method is serviceable, low-priced and widely useful to traffic flow measuring. |
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| Keywords: | traffic flow model measurement critical density wide moving jam unimpeded velocity |
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