Research analysis of coordinated traffic lights

Abstract

Traffic patterns in cities depend on the geographical environment, population density and the percentage of motorisation, which is expressed most often in densely populated areas. This necessitates the provision of measures to increase throughput, reduce delays in transport flows, combined with minimizing construction costs. One of the approaches that is applied to satisfy these conditions and efficiently use the space of the street network is to coordinate the operation of traffic lights. This publication analyzes the scientific research carried out in this area, which aims to determine the main indicators that influence the choice of applied approaches, when coordinating the traffic light systems, the weight of their quantitative indicators and their connection. Subsequently, the necessary studies are determined to coordinate the work of a selected section of the street network of the city of Sofia.