Proposed Traffic Light Management for the Intersection Road of San Jose City Nueva Ecija: application of Graph Theory and Linear Programming
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Date
2019
Authors
Brix Lander C. Castro and Ryan D. De Quina
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Abstract
A goal of traffic management system is to provide smooth and efficient traffic flow by installing traffic lights at the intersection roads. The Pan-Philippine Highway and San Jose City-Umingan Road intersection road is one of the main intersection road of San Jose City, Nueva Ecija installed with pre-timed traffic light. However, traffic light in this intersection has been stopped due to long period of waiting time. Traffic light management in terms of finding the ordering of phases of traffic streams and providing minimized waiting time were the foremost concerns in this study. Graph theory concepts such as compatibility graph, and maximal clique and simple linear programming were used to analyse the traffic system. Traffic volume in the intersection road was also determined. Based from a seven-day period of observation, the average number of vehicles during the peak hour 4:30 p.m. – 5:30 p.m. was 5115 in the intersection road. The sequence of the existing traffic phases was determined. Proposed traffic light management by modifying the traffic streams and its corresponding phases were also presented. It was determined that modifying the traffic stream by simply reducing the number of traffic phases will result to lower waiting time. This proposed traffic light management can be implemented in the intersection road of San Jose City, Nueva eCija when the traffic lights are operational again.
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Research Subject Categories::MATHEMATICS