Evaluation and improvement of the performance of a selected congested traffic network within Baghdad City

Dissertant

al-Imam, Muhannad Qasim

University

University of Technology

Faculty

-

Department

Department of Building and Construction Engineering

University Country

Iraq

Degree

Master

Degree Date

2004

English Abstract

A congested network was selected within Al-Mansour and AI-Khadra districts, in the west part of Baghdad City (AL-Karkh).

Many activity centers (educational, shopping, governmental, hospitals) are located in these districts, which results in many people using this network.

On the other hand, Abu-Ghraib expressway increases the problem through the additional traffic volume, especially, in Al-liqa' and Al-Furat intersections.

As a result of these combinations of activities, the study area suffers from severe traffic congestion, especially, at A.M and P.M.

peak periods. Evaluation of the existing traffic flow patterns of the selected network was performed using TRANSYT-7F program release 9.4 (2002).

Different types of data were collected manually for running the aforementioned program; data collection process was started in November 2002 and ended in February 2003. Nine improvement proposals are suggested to improve the performance of traffic flow patterns at the study area network : application of new phase sequence schemes, changing geometric conditions, and prohibition of heavy vehicles from entering the study area network during certain periods of time are suggested as improvements No.

l, No.2, and No.

3, respectively, whereas, improvement proposal No 4 is the combination of first three improvement proposals.

The construction of over- pass at Al-Liqa' intersection is suggested in the improvement No.5, whereas improvement No.6 is the combination of fourth and fifth suggested in the seventh improvement, whereas, application of new phase sequence schemes, changing geometric conditions and applications of road pricing technique are suggested in the eighth improvement proposal.

Finally, improvement No.9 is the combination of improvement No.

8 and No-5 (the construction of over-pass at Al-Liqa' intersection).

A comparative study is made among the nine improvement proposals based ton total delay, average delay, total and percent stops, fuel consumption and performance index. The study shows that improvement proposal number nine is the best one, whereas, level of .service for the whole studied network improved from F in the existing conditions to B in the base year and B and C for the two target years (i.

e.

2008, 2013), respectively.

Main Subjects

Civil Engineering

Topics

• Iraq
• Data processing

• APA
• MLA
• AMA

Language

English

Data Type

Arab Theses

Record ID

BIM-305574