城市快速路交通流特性分析

Traffic Flow Characteristics Analysis of Urban Expressway

针对目前在考虑交通流特性时很少基于城市快速路实测数据进行针对性研究的问题,在经典基本图理论、三相交通流理论基础上,以成都市三环路实际采集数据为基础,分析城市快速路交通流特性,并得出基本拟合交通参数,为建立适用于城市快速路的交通流模型标定参数。本文的研究成果可为建立交通流模型进一步研究城市快速路交通拥堵问题提供参考。

By using the real-time traffic flow data collected on three-ring expressway road in Chengdu city,the paper analyzes the traffic flow characteristics and the traffic fitting parameters are obtained based on the fundamental diagram theory and three-phase traffic flow theory. The parameters provide suitable parameter calibration to set up traffic flow model suitable to expressway. The conclusion of this paper can provide reference for setting up traffic flow model to further research.