城市快速路交通流特性研究

Research on Traffic Stream Characteristics of Urban Expressway

本文利用我国城市快速路交通信息采集系统的实时交通检测数据,对城市快速路交通流的动态特性进行了分析;对比了多车道交通流量、密度、速度的横向分布差异;最后比选了适用于城市快速路的稳态交通流模型,并标定了模型参数。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。

By using real-time traffic flow data detected by traffic system on urban expressway in our country, the paper analyzes the information collecting dynamic characteristic of traffic flow; and contrasts the transverse distribution characteristic of the flow, density velocity of the multi-lane sections; at last, the paper compares several steady traffic flow models that are suitable for urban expressway, and estimates the value of parameters. The research of this paper can provide scientific basis and data support for the layout, design, operation, management and evaluation of urban expressway.