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386102

Operational Performance Evaluation of the Median U-turn Intersection

Article

Last updated: 09 Mar 2025

Subjects

-

Tags

Civil Engineering

Abstract

In Egypt, recently, unconventional intersections have gained popularity among policymakers where conventional countermeasures that exemplify increasing cycle length, actuated signals, and signal coordination systems did not have the ability to overcome the operational problems of traffic congestion. The most important of these intersections is the intersection of the median U-turn (MUT). This research evaluated and investigated the operational performance of the MUT in urban areas under balanced/unbalanced volume scenarios. SYNCHRO was used to optimize the signal cycle length, which were extracted from SYNCHRO and used as input in PTV VISSIM (student version). The average vehicle delay and overall capacity for intersection was used as measures of effectiveness in comparison between the MUT and the conventional counterpart. The MUT intersection had the lowest average delay under balanced and unbalanced volume conditions in all scenarios. The conventional intersection had the lowest capacity, around 950 vehicles per hour/ approach, while the MUT had the highest capacity, around 1650 vehicles per hour/ approach.  Compared to this value, the capacity of the MUT is 57% higher than conventional intersection. Finally, the distance between the main and second intersections was investigated of the MUT under balanced volumes. The distance of 300 meters between the main intersection and crossover U-turn was the best in cases of heavy traffic volumes that were close to the capacity of the intersection. Also, the distance of 200 m was well in cases of moderate traffic volumes, while the distance of 100 m had the highest delay for all levels of volumes.

DOI

10.21608/sej.2024.326251.1067

Keywords

Unconventional intersections, micro-simulations, operational performance, geometric design of intersections, Medium U-turn

Authors

First Name

Talaat

Last Name

Abdel-wahed

MiddleName

-

Affiliation

Highway and Traffic Engineering , Civil Engineering, Sohag University

Email

dr.talaat_ali@eng.sohag.edu.eg

City

Sohag

Orcid

0000-0001-5383-7275

First Name

Mohamed

Last Name

El Esawey

MiddleName

-

Affiliation

Highway and Traffic Engineering , Civil Engineering , Ain Shams University

Email

m.elesawey@eng.asu.edu.eg

City

Cairo

Orcid

0000-0002-5881-2090

First Name

Mohamed

Last Name

Fayez

MiddleName

Ahmed

Affiliation

Avic Company, Kuwait

Email

mohammed_ahmed41@yahoo.com

City

Assuit

Orcid

-

Volume

5

Article Issue

1

Related Issue

54203

Issue Date

2025-03-01

Receive Date

2024-09-06

Publish Date

2025-03-01

Page Start

82

Page End

92

Print ISSN

2735-5888

Online ISSN

2735-5896

Link

https://sej.journals.ekb.eg/article_386102.html

Detail API

http://journals.ekb.eg?_action=service&article_code=386102

Order

386,102

Type

Original Article

Type Code

1,762

Publication Type

Journal

Publication Title

Sohag Engineering Journal

Publication Link

https://sej.journals.ekb.eg/

MainTitle

Operational Performance Evaluation of the Median U-turn Intersection

Details

Type

Article

Created At

09 Mar 2025