摘要
在回顾宏观流体模型的发展和分析宏观模型中的高阶流体模型的基础上,利用上海高架快速路实测交通数据,对快速路控制中常用的一种高阶流体模型进行了参数辨识和模型性能分析,验证了模型对于我国城市快速路的适用性;最后给出下一步研究的设想.研究结论可为我国城市快速路的规划、设计、运营和管理提供有力依据和数据支持.
This paper first presents a brief literature review of the existing macroscopic traffic flow models for expressways. And then, based on the real traffic data for both congested and uncongested flow of the expressways in Shanghai of China, an investigation is conducted on the modeling performance of the Papageorgiou model, a commonly used high-order continuum model. Parameter identification of the model is formulated as a parameter optimization problem which is solved by a heuristic searching procedure. Moreover,a stability analysis with respect to parameter changes is made. Analysis results show the model has a satisfactory performance in modeling the complicated non-linear urban expressway traffic flow behaviors in China. This paper＇s work can support the design of the expressway traffic control system.
出处
《同济大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2007年第5期602-606,共5页
Journal of Tongji University:Natural Science
基金
国家"十五"科技攻关计划资助项目(2002BA404A08)
上海市教委科学发展基金资助项目(06EZ004)
上海理工大学博士启动基金资助项目(X693)
关键词
城市快速路
宏观流体模型
高阶流体模型
模型参数估计
交通控制
urban expressways
macroscopic traffic flow model
high-order continuum model
parameter identification
traffic control
