| 基于车辆跟驰理论的交通流动力学模型与数值仿真 |
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| 引用本文： | 王立锋,李正熙.基于车辆跟驰理论的交通流动力学模型与数值仿真[J].东南大学学报(自然科学版),2005(Z2). |
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| 作者姓名： | 王立锋 李正熙 |
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| 作者单位： | 北方工业大学现场总线及自动化北京市重点实验室 北京100041 |
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| 基金项目： | 北京市优秀人才培养专项经费资助项目 |
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| 摘 要： | 为改进交通流模拟,提出了微观与宏观统一的交通流动力学模型.从微观的车辆跟驰模型出发,假设路段单元体中的车流为整体,且单元体的运动遵守拉格朗日坐标系下的车辆跟驰运动模型,那么该模型在变换为欧拉坐标后,与流量方程结合,推导出宏观的交通流动力学模型.模型分析和数值仿真表明该模型能够良好地模拟交通流的堵塞和疏导等现象.
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| 关 键 词： | 交通流动力学模型 交通流仿真 车辆跟驰模型 |
Traffic flow dynamic model and numerical simulation based on car-following theory |
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| Wang Lifeng Li Zhengxi.Traffic flow dynamic model and numerical simulation based on car-following theory[J].Journal of Southeast University(Natural Science Edition),2005(Z2). |
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| Authors: | Wang Lifeng Li Zhengxi |
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| Abstract: | In order to improve traffic flow simulation,a traffic flow dynamic model which unified microscopic and macroscopic scale is proposed.Based on the microscopic car-following model,it is assumed that road cell motion were whole and were complied with car-following model at the Lagrange coordinate.The model is then transformed to the Euler coordinate,and the macroscopic traffic flow dynamic model is deduced integrated with flow mass balance equation.Model analysis and numerical simulation indicate that the proposed model can simulate traffic flow jam and leading phenomena. |
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| Keywords: | traffic flow dynamic model traffic flow simulation car-following model |
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