| 基于热力学熵的交通流模型 |
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| 引用本文： | 刘勇,严宝杰,陈红.基于热力学熵的交通流模型[J].长安大学学报(自然科学版),2005,25(4):62-65. |
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| 作者姓名： | 刘勇 严宝杰 陈红 |
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| 作者单位： | 1. 长安大学,理学院,陕西,西安,710064
2. 长安大学,公路学院,陕西,西安,710064 |
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| 摘 要： | 在分析热力学熵的基础上,讨论了交通流类热力学熵的构造方法,并构造了适用于不同情况下的交通流熵。通过对系统熵变的分析,揭示了交通流熵产生的内部机制,导出了熵产生公式。最后依据熵理论,导出了路段交通系统的交通流状态变化的微分方程,并建立了动态交通流模型。研究结果表明,此法不仅对已有理论具有包容性,而且具有普适性。
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| 关 键 词： | 交通工程 交通流 热力学熵 模型 |
| 文章编号： | 1671-8879（2005）04-0062-04 |
| 收稿时间： | 2004-03-15 |
| 修稿时间： | 2004年3月15日 |
Model of traffic flow based on thermodynamics entropy |
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| LIU Yong,YAN Bao-jie,CHEN Hong.Model of traffic flow based on thermodynamics entropy[J].JOurnal of Chang’an University:Natural Science Edition,2005,25(4):62-65. |
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| Authors: | LIU Yong YAN Bao-jie CHEN Hong |
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| Abstract: | Based on the thermodynamics entropy, this paper discusses the way to build up the traffic flow thermodynamics entropy, and establishes the traffic flow entropy model. Through the analysis of the entropy variation of the road traffic system, the paper reveals the mechanism of the traffic flow entropy producing, and establishes the equation of the entropy producing. The differentiating equation of the state of the traffic flow and the model of the traffic flow is derived. This method can be used widely to deal with the problem related to traffic flow, which is meaningful to the development of traffic flow theory.1 fig, 7 refs. |
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| Keywords: | traffic engineering traffic flow thermodynamic entropy model |
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