TRAFFIC INDICATORS ON APPROACHES TO REGULATED INTERSECTIONS TAKING INTO ACCOUNT THE LANE CHANGES OF TRAFFIC BY DRIVERS
Authors: Prasolenko O. , Chumachenko V. 
Published: December 2024

Modern transport problems of cities are characterized by a significant level of congestion at intersections. There are many known methods of increasing the efficiency of traffic management aimed at reducing time spent, traffic delays, emissions of harmful substances, etc. The known dependencies of the ratios between the characteristics of the traffic flow take into account the deterministic approach. However, the stochasticity of the movement of vehicles on the approaches to intersections indicates the peculiarities of the behavior of drivers during the selection and, accordingly, changes of traffic lanes. There is a certain share of changes in traffic lanes in relation to the total volume of traffic flow, which disorganizes traffic conditions at intersection approaches. Therefore, the question of studying these regularities is rele-vant.
The article considers the issue of driver behavior when changing traffic lanes. The entropy of the traffic flow speed is used as a motion indicator. The ratio of traffic lane changes based on the intensity and speed of the traffic flow is considered. In order to determine the influence of traffic flow parameters on driver behavior in conflict zones, a study was conducted on approaches to intersections with different numbers of traffic lanes. Conflict zones are formed in these places. Conflicts arise when drivers change traffic lanes and choose them. Also, these processes are especially observed as the length of the traffic jam queue accumulates. That is, conflict zones are constantly changing their position in space. In addition, lane changes can often be observed on approaches to intersections by drivers in the queue, who are trying to change the lane in order to reduce the time spent in the traffic jam. Accordingly, such actions of drivers cause changes in the speed of movement. In order to determine the influence of traffic flow parameters on driver behavior in conflict zones, a study was conducted on approaches to intersections with different numbers of traffic lanes. Conflict zones are formed in these places. Conflicts arise when drivers change traffic lanes and choose them. The entropy of the speed of movement was used as an indicator of the movement of traffic flows, and the part of the intensity of the traffic flow changing the traffic lanes in relation to the total traffic intensity on the approach to the intersection was used as an indicator of changes in traffic lanes. The part of the change of traffic lanes does not change linearly in relation to the entropy of the speed of the traffic flow. Changes in traffic lanes by drivers are possible only at the speed and the corre-sponding traffic intensity. With the entropy of the speed of the flow of 3 units, there is a decrease in the possibilities of maneuvering, and, consequently, changes in traffic lanes. The greatest number of changes in traffic lanes occurs from the values of the entropy of the speed of the traffic flow within 5-3 units. This is explained by the presence in the traffic flow of the possibility of maneuvering and choosing a traffic lane.