The Characteristics of Network Traffic and Dynamic Evolution on Different Grades of Roads

被引：0

作者：

Niu, Xiaojing ^{[1
]}

Zhao, Xiaomei ^{[1
]}

Di, Mengyuan ^{[1
]}

Xie, Dongfan ^{[1
]}

Bi, Jun ^{[1
]}

Lu, Chaoru ^{[2
]}

机构：

[1] Beijing Jiaotong Univ, Sch Traff & Transportat, Beijing, Peoples R China

[2] Oslo Metropolitan Univ, Fac Technol Art & Design, Oslo, Norway

来源：

CICTP 2022: INTELLIGENT, GREEN, AND CONNECTED TRANSPORTATION | 2022年

基金：

中国国家自然科学基金;

关键词：

MACROSCOPIC FUNDAMENTAL DIAGRAMS;

D O I：

暂无

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

The traffic flow characteristics of each grade road in the whole urban network are quite different. Based on the field data from Tianjin, China, this paper comparatively analyzes the macro traffic states of different grade roads on weekdays and weekends with the Macroscopic Fundamental Diagram (MFD). During weekday peak hours, the average flow and density curves are single-peaked in the morning and double-peaked in the evening. The inhomogeneous distribution of density results in hysteresis that makes the MFD scatters are dispersed on the expressways. The MFD is concentrated on arterials, while it appears double branches on subarterials. Based on the analysis above, a calibrated dynamic model is applied to investigate the traffic evolution among each grade road. The sensitivity analysis is used to uncover the interaction between different grade roads. Finally, some management strategies are proposed based on the model to relieve the congestion of expressways and arterials.

引用

页码：788 / 798

页数：11