Abstract
With the growth of the road transport fleet and increase of urban agglomerations, the availability of private transport on the streets of cities with a population over 500 thousand inhabitants is quite noticeable. The previously developed general plans of such settlements, in modern realities, are impossible to implement both from a financial point of view and in terms of the urban space organization. Given the impossibility of meeting the needs of private car users, public transport comes first in the priorities of urban mobility. Problematic areas of the road network in many western Ukrainian cities are those that are densely populated. In such cases, it is not always possible to redesign elements of street sections or intersections, so the traffic management improvement is limited to organizational measures. Among them, the most popular and least expensive are the change the modes of light control at intersections. Considering modern opportunities, technical means and scientific achievements, the capacity of signalized intersections is high. The same applies to the principles of giving priority to public transport over time (at signalized intersections). At present, a significant number of methods and algorithms for detecting and heading the movement of public transport at traffic lights have been developed, however, the criteria for the application of each of them are not fully understood. As a result of the conducted research, the change of queues in front of stop-lines at intersections depending on types of signalization is defined. The results showed that the existing type of control creates significant traffic delays on secondary streets. As a result, it is proposed to use adaptive control, which provides for the adjustment of the traffic light cycle in the presence of tram traffic. Using traffic simulation tools, it became possible to choose different modes of traffic lights control at intersections, which can provide public transport priority, while minimizing the negative impact on the adjacent elements of the road network.
Highlights
Urban traffic management is a difficult task for both engineers and scientists
The main objectives of the research are: − the definition of eligible types of traffic light control at intersections that provide public transport priority; − the study of traffic indicators change at intersections in various traffic lights signaling modes through simulation modeling; − justification of signal control modes at intersections to gain public transport priority by the criterion of minimum delays on secondary directions
The results indicate that minimal delays will be observed with the third type of traffic light control
Summary
Urban traffic management is a difficult task for both engineers and scientists At this time, the number of cars on the streets and roads of large and very large cities of Ukraine is constantly growing. During the increase of motorization level, a large number of the city's population should prefer public transport, its performance is far from those that would attract people to make their choice in favor of trams or buses. To this end, it is necessary to implement measures to improve the speed and regularity of public transport, giving priority to its control. Extensive research is being conducted and the process of finding compromise solutions is underway in order not to give priority to one group of movement to create significant discomfort for others
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