MODEL OF THE TRAFFIC FLOW MANAGEMENT SYSTEM OF TWO INTERCONNECTED INTERSECTIONS
https://doi.org/10.33815/2313-4763.2025.2.31.091-099
Abstract
The article presents the development of a model of a traffic flow control system for two consecutively located controlled intersections of an urban street and road network based on a discrete-cellular approach. The study is aimed at ensuring such a control mode in which a formed group of vehicles approaching the first intersection, after turning on the permitted signal, can overcome the second intersection without stopping also at the permitted signal. The model takes into account the width of the intersections, the distance between them, the number of vehicles in the group, their speed of movement and the logic of changing traffic light phases. The time dependencies for each vehicle within the group are analyzed and generalized formulas for determining the durations of the permitted and prohibited phases for both intersections are obtained. The proposed approach allows one to determine traffic light cycles in such a way as to avoid delays and excessive accumulation of vehicles at the second intersection, which is especially important in conditions of urban traffic flows with high intensity. The use of a cellular model allows one to visually reproduce the movement of cars, monitor their positions at any given time, and assess the impact of regulation parameters on the overall throughput. The developed model can be used to optimize the operation of controlled intersections, set fixed traffic light modes, and also as a basis for creating more complex adaptive control systems. The results obtained are practically significant for designing transport schemes, improving road infrastructure, and reducing congestion in the urban environment.
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