High Accuracy Traffic Light Controller for Increasing the Given Green Time Utilization

TL;DR

This paper presents a dynamic traffic light control system for single intersections that improves green time utilization, reduces queues, and maintains stability across varying traffic demands.

Contribution

It introduces a novel dynamic phase plan protocol that outperforms existing methods in green time optimization and traffic flow stability.

Findings

Reduces average and maximum queue lengths.

Increases intersection throughput.

Maintains stability at all demand levels.

Abstract

Traffic congestion has become one of the major problems in the urban cities according to the increasing number of vehicles in those cities, obsolete technologies used on the roads of those cities, inappropriate road design, and many other reasons. So, that has urged the need for a more accurate traffic light controlling system; one that will help in maintaining high stability at all levels of demand. This paper introduces a dynamic traffic light phase plan protocol for Single-Isolated Intersections. The developed controlling method was compared with four other methods and showed a good performance in terms of reducing the average and maximum queue lengths, optimizing the given green time amount as needed, and increased the intersections throughput (increased the given green time utilization). In addition, it maintained a good traffic light stability at all levels of demand.