| 混合交通流的动力学模型及其特征关系 |
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| 引用本文： | 李杰,熊烈强,彭少民.混合交通流的动力学模型及其特征关系[J].华中科技大学学报(自然科学版),2005,33(4):83-85. |
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| 作者姓名： | 李杰 熊烈强 彭少民 |
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| 作者单位： | 1. 武汉理工大学,土木工程与建筑学院,湖北,武汉,430070
2. 武汉工业学院,交通研究所,湖北,武汉,430023 |
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| 基金项目： | 国家自然科学基金资助项目(50278027)，湖北省教育厅优秀中青年科研项目(2003B001). |
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| 摘 要： | 引入超车换道流量，建立了混合交通流的连续性方程；通过对交通流参数的微分变换，建立了混合交通流的运动微分方程，连续性方程和运动微分方程构成了混合交通流的动力学模型．采用特征线法对模型进行分析求解，在高速低密度区和低速高密度区分别得到了两组特征线和对应的特征关系式．特征关系式中包含了超车换道流量以及干道速度、密度和流量，是研究混合交通流参数之间关系的基础．
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| 关 键 词： | 混合交通流 动力学模型 特征线 特征关系 |
| 文章编号： | 1671-4512(2005)04-0083-03 |
| 修稿时间： | 2004年10月16 |
Dynamical model of mixed traffic flows and its characteristic relations |
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| Li Jie,Xiong Lieqiang,Peng Shaomin.Dynamical model of mixed traffic flows and its characteristic relations[J].JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE,2005,33(4):83-85. |
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| Authors: | Li Jie Xiong Lieqiang Peng Shaomin |
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| Institution: | Li Jie Xiong Lieqiang Peng Shaomin Li Jie Doctoral Candidate, College of Civil Eng. & Arch.,Wuhan University of Technology,Wuhan 430070,China. |
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| Abstract: | The mixed traffic continuum equation including overtaking flow and the mixed traffic momentum differentiating equation were founded to form the dynamical model of mixed traffic flow by means of differential calculus, the continuum equation and momentum differential equation. The model was established by using characteristic curve model. Two groups of characteristic curves and the corresponding chacacteristic relations, including the overtaking flow, the speed, density and flow in mainline, in high speed (low density) states and low speed (high density) ones, were obtained. Based on the relations, the relationships of the mixed traffic flow parameters can be gained. |
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| Keywords: | mixed traffic flow dynamical model characteristic curve characteristic relation |
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