Yerramsetti, Anoosha (2017) Optimization of Signal Timing for Improving Traffic Flow on a Highway segment using TRANSYT-7F. [USQ Project]
Abstract
The exponential increasing trend in population growth has led to increasing traffic congestion and delays in most of the cities in the country. This issue is exaggerated and evident during peak hours of the day at signalized intersections. This condition is evident on a segment of the Warrego Highway in Toowoomba city, from Anzac Avenue to Mackenzie Street. This stretch of the road forms the major portion of the transportation network in the city as it has influx of both heavy and light vehicles.
There are nine signalized intersections on this segment which were considered for the research. This set of signalized intersections is modelled in TRANSYT-7F using the data provided by the Queensland Department of Transport and Main Roads. The reports provided by DTMR was analyzed for peak hours during AM and PM of the day in the city, volume of vehicles flowing in each lane, phase sequence followed for each timing plan, turning volume of traffic and geometric conditions of road at each intersection. The model considers all modes of transport in terms of passenger car unit for the convenience of research.
The observations derived from STREAMS and TARS data provided by DTMR, was used to model the segment of highway with nine signalized intersections. The model is subjected to simulation with the input values of cycle time, phasing sequence and traffic volume to analyze the effectivity of traffic flow through all the junctions. The model is optimized considering Disutility Index as the objective function, for a number of generations and the optimization solutions displayed a significant improvement in delay controls, number of stops through the network, fuel consumption and travel time. The positive and negative effects of implementing improvised signal timing plans is detailed.
The benefits of implementing optimized timing plans for the road segments are discussed. The recommendation arrived from this thesis and the areas where the research can be further extended to produce more efficient timing plans is given.
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| Item Type: | USQ Project |
|---|---|
| Item Status: | Live Archive |
| Faculty/School / Institute/Centre: | Historic - Faculty of Health, Engineering and Sciences - School of Civil Engineering and Surveying (1 Jul 2013 - 31 Dec 2021) |
| Supervisors: | Soma Somasundaraswaran |
| Qualification: | Master of Engineering Sciences (Civil) |
| Date Deposited: | 01 Nov 2024 06:35 |
| Last Modified: | 01 Nov 2024 06:35 |
| URI: | https://sear.unisq.edu.au/id/eprint/52090 |
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