Macroscopic flow characterization at T-junctions

被引：6

作者：

Khan, Daud ^{[1
]}

Khan, Zawar Hussain ^{[2
]}

Imran, Waheed ^{[3
]}

Khattak, Khurram Shehzad ^{[4
]}

Gulliver, Thomas Aaron ^{[5
]}

机构：

[1] Univ Engn & Technol, Natl Inst Urban Infrastruct Planning, Peshawar 25000, Pakistan

[2] Univ Engn & Technol, Dept Elect Engn, Peshawar 25000, Pakistan

[3] Univ Naples Federico II, Dept Civil Environm & Architecture Engn, Via Claudio 21, I-80125 Naples, Italy

[4] Univ Engn & Technol, Dept Comp Syst Engn, Peshawar 25000, Pakistan

[5] Univ Victoria, Dept Elect & Comp Engn, Victoria, BC, Canada

来源：

TRANSPORTATION RESEARCH INTERDISCIPLINARY PERSPECTIVES | 2022年 / 14卷

关键词：

Lighthill-Whitham-Richards model; First order upwind scheme; CFL condition; Driver response; Junctions; TRAFFIC MODEL; WAVES;

D O I：

10.1016/j.trip.2022.100591

中图分类号：

U [交通运输];

学科分类号：

08 ; 0823 ;

摘要：

At T-junctions, a minor road meets a main road and merging vehicles from the minor road create traffic bottlenecks as significant interactions between vehicles occur. These interactions reduce road capacity resulting in congestion. The Lighthill-Whitham-Richards (LWR) model is widely employed to characterize traffic flow. However, this model only considers small changes in flow which can be inadequate for T-junctions. Thus, a new model is proposed which is based on driver response during transitions at these junctions. The proposed and LWR models are evaluated using the first order upwind scheme (FOUS). The Courant-Friedrich-Lewy (CFL) condition is employed to ensure model stability. Results are presented which show that the proposed model better characterizes traffic flow at T-junctions.

引用

页数：8

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