摘要
传统交通流理论的建模方法不严谨 ,各研究方向的研究成果之间相互难以验证、引证 .文中分析几个典型的宏观模型 ,指出其建模方法中的缺陷 .提出了基于参数变换的运动学建模方法和步骤 .用实测数据验证了速度和密度不是线性关系 ;而在低密度时 ,流量和密度呈线性关系 .提出了基于参数变换的运动学建模方法和步骤 .
This paper analyzes some typical macro models, such as Lighthill and Whitham, Pipes, Payne, Wu Zheng, Papageorgious, Kühne, Ross, H.M.Zhang, Feng Suwei and Jiang Rui, pointed out their blemishes in the methods of setting up the models. Testifying with the field data, the relationship between speed and density was not linear, and the relationship between flow and density was linear at lower density. Based on differential calculus of parameters, the method of the establishing traffic kinematics model is proposed.
出处
《武汉理工大学学报(交通科学与工程版)》
2005年第1期26-29,共4页
Journal of Wuhan University of Technology(Transportation Science & Engineering)
基金
国家自然科学基金 (批准号 :5 0 2 780 2 7)
中国博士后基金 (批准号 :2 0 0 40 3 5 0 5 3 3 )
湖北省教育厅项目 (编号 :2 0 0 3 B0 0 1)资助
关键词
交通流理论
宏观模型
动量方程
运动学模型
traffic flow theory
macro model
momentum equation
traffic kinematics