STUDY OF THE POSSIBILITY OF TRAFFIC LIGHT CONTROL MODELING OF A COMPLEX INTERSECTION BY AnyLogic

Abstract

Insufficient capacity of the road network is a problem in most cities. This problem can be partially solved by optimizing the operation of the traffic light. Since selecting traffic light settings in real time can lead to a deterioration in the traffic situation, it is advisable to pre-configure the model and work out various traffic light operating modes on it, and select the optimal ones. The purpose of the study was to simulate changes in the average number of cars in a queue before a traffic light and the average travel time of an intersection. To achieve this goal, the following tasks are formulated: creating a model of a road section with real flows at the entrances; determining the average number of cars in a queue under different traffic light operating modes; creating an experiment to find the average time of a left turn with and without the introduction of a specialized left-turn phase of the traffic light. Materials and methods. To solve the tasks set, the method of using the AnyLogic environment for analyzing a traffic section has been tested, and the possibility of using simulation modeling to identify the dependence of the intersection's capacity on the operating mode of the traffic light has been shown. Results. In the course of the research, a model of the existing intersection was created and the dependence of the number of cars in the queue in front of the forbidding traffic light signal on the duration of its full cycle was considered. To conduct the experiment, the existing 84-second traffic light cycle was changed to 30 seconds, one, two, three, and five minutes. To visualize the obtained dependencies, a graph is constructed that reflects the number of cars in a traffic jam under different traffic light operating modes. The created model is also used to determine the dependence of the travel time of an intersection at a left turn on the number of turning cars and the number of cars in the opposite direction. Traffic light options with and without an additional left signal are considered. The results are presented in a table and graphically. Conclusion. The study showed that with a small amount of oncoming traffic, the introduction of a specialized left-turn phase of the traffic light increases the travel time of the intersection, but with an increase in oncoming traffic, the situation changes to the opposite.