【作者】 郝媛； 干宏程； 徐天东； 孙立军；

【Author】 HAO Yuan GAN Hongcheng XU Tiandong SUN Lijun (Key Laboratory of Road and Traffic Engineering of the Ministry of Education,Tongji University,Shanghai 200092)

【机构】 同济大学道路与交通工程教育部重点实验室；

【摘要】 本文首次利用我国城市快速路交通诱导系统的实时交通检测数据,选取典型断面,分析了城市快速路交通流的动态特性,总结了拥挤时交通波的传播规律。本文比选了适用于城市快速路的稳态交通流模型,并对两车道、三车道、四车道城市快速路基本路段交通流进行了参数估计。本文的研究成果将对城市快速路的规划、设计、运营、管理和评价提供科学依据和数据支持。更多还原

【Abstract】 By using real-time traffic flow data of typical sections detected by route guidance system on urban expressway in our country,the paper analyzes the dy- namic characteristic of traffic flow,and summarizes the propagation of traffic wave when congestion occurred.The paper compares several steady traffic flow models that are suitable for urban expressway,and estimates the parameters of traffic flow in basic sections of four-lane,three-lane and two-lane urban express- ways.The research of this paper can provide scientific basis and data support for the layout,design,operation,management and evaluation of urban expressway.更多还原