Impact of Traffic Signal Synchronization on Reducing Urban Traffic Delays in Kathmandu Valley

Abstract

Traffic congestion in rapidly growing cities like Kathmandu Valley has become a major challenge. Due to the lack of an integrated traffic signal system, delays are common at important intersections like Maitighar, Thapathali, and Singhadurbar, particularly during peak hours. With increased vehicle numbers and inadequate infrastructure development, traffic congestion has worsened, adding to longer travel times, environmental pollution, and economic inefficiencies. Synchronization of traffic signals, where the timing of signals is coordinated over a number of intersections, has shown potential for reducing delays and optimizing flow.

This review looks to explore the impact that traffic signal synchronization has on reduction in urban traffic delays within Kathmandu Valley. In this study, findings from a synthesis of global research relating to adaptive control systems and signal synchronization identify strategies already in place that have considerably reduced congestion in other urban settings. Signal synchronization can reduce vehicle stops, waiting times, and fuel consumption drastically, which is very much necessary for improving overall traffic management.

The review has looked at existing methodologies to establish how synchronization could be effectively done at key intersections in Kathmandu Valley to alleviate congestion. The expected outcomes will be smooth traffic flow, reduced travel times, and improved efficiency at intersections. Additionally, synchronized signal systems could have other secondary benefits like reduced emissions and improved safety on the roads.

This research adds to the emerging literature on traffic management in developing cities and presents one possible solution for congestion in Kathmandu. The results of this study will be used to give actionable insight into the traffic authorities for synchronized traffic signals, which are going to improve urban mobility with less delay. Ultimately, this research calls for the integration of intelligent traffic management systems into rapidly growing urban areas like Kathmandu