Research of the Traffic Flow on the Signal-controlled Intersections using Queuing Theory
Fatih Güneş Selim Bayraklı Abdul Halim Zaim
AbstractThe global problem of the growing city centres has many causes and requiring many different solutions. Existing urban infrastructures are having difficulty to meet the needs within the increasing population and urbanization of the cities. In this context, innovations must be made in many areas of the infrastructure of the cities such as Transport, Energy and Environment cleanliness. The most important increase due to the population growth in urban areas occurs in the traffic intensity. The number of vehicles increasing in traffic brings with it many new problems such as energy, time, and environmental pollution. Several field studies have been done so far to reduce and minimize traffic intensity. In this context, different solutions have been tried, such as speed controls, camera systems equipped with image processing techniques, and measures to reduce the intensity of intersection connections. As a result of interviews and determinations within the scope of this study, it is seen that traffic lights have a serious effect on traffic regulation. In this study, the working principle of traffic lights was first investigated. In particular, the optimization and the techniques of signaling times of traffic lights have been examined. Traffic lights, which usually operate for a fixed period of time, can cause the vehicles to remain in traffic for a longer time and increase traffic intensity. Systems that operate according to the vehicle density cause very important improvements if they are operated through the appropriate mathematical model. In our work, queuing theory is mentioned, the application areas of theory are investigated and the data obtained from the field have been tested through this model. According to the queuing theory, the intensity of the intersection arms, the performance of the lights, arrival and the service ratios were obtained. With this study, it is aimed to bring a new approach to the density at the intersection of the city centers.