Feasibility of improved traffic flow on Cohoe Street, Toowoomba by intersection improvements

Pearson, Kelly (2015) Feasibility of improved traffic flow on Cohoe Street, Toowoomba by intersection improvements. [USQ Project]


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Traffic congestion is an ongoing issue for most Australian cities. With Australia’s growing population congestion issues will only further deteriorate, as this dissertation has found on Cohoe Street. Cohoe Street is section of the Warrego Highway making it a key part of the transportation network in Toowoomba, Queensland.

The three major intersections along the link, Tourist Road, Herries Street and James Street, were modelled in SIDRA Intersection using data provided by the Queensland Department of Transport and Main Roads. The results identified that Tourist Road and James Street both have movements that are at or nearing capacity. The sheer volume of through moving traffic on Cohoe Street was determined as the likely cause for the large delays for turning vehicles at James Street and Tourist Road.

Cohoe Street is a complex and challenging urban site due to the abutting land uses (residential and commercial), vehicle composition, traffic volumes and road classification. As such a number of potential solutions to improve the road link were identified including methods such as, access control and introducing traffic signals or roundabouts.

The options assessment identified the optimum solution as upgrading the existing signalised intersection of Mackenzie and James Street (the Warrego Highway) in combination with movement restrictions at Tourist Road and James Street.

The key benefits of implementing the recommendations outlined in this dissertation include the potential for improved safety, provision for enhanced cyclist and pedestrian facilities and improved intersection efficiency and flow along the link.

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Item Type: USQ Project
Item Status: Live Archive
Additional Information: Bachelor of Engineering (Civil) project
Faculty/School / Institute/Centre: Historic - Faculty of Health, Engineering and Sciences - School of Civil Engineering and Surveying (1 Jul 2013 - 31 Dec 2021)
Supervisors: Ayers, Ron
Date Deposited: 07 Jun 2016 02:19
Last Modified: 07 Jun 2016 02:19
Uncontrolled Keywords: traffic flow, intersection improvements, Cohoe Street, Toowoomba, department of transport and main roads, intersection efficiency, road link
Fields of Research (2008): 09 Engineering > 0905 Civil Engineering > 090599 Civil Engineering not elsewhere classified
Fields of Research (2020): 40 ENGINEERING > 4005 Civil engineering > 400599 Civil engineering not elsewhere classified
URI: https://sear.unisq.edu.au/id/eprint/29280

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