The National Transport University Bulletin

Abstract

The article examines the study of the characteristics of traffic flows on highways in the suburban areas of Ukrainian cities. The object of the research is traffic flows when driving on highways in suburban areas. The research method is simulation modeling. The purpose of the work is to publish the characteristics of traffic flows obtained through simulation modeling on highways in suburban areas of Ukrainian cities. Traffic speeds, which have developed depending on the existing road conditions, are one of the indicators of the efficiency of the road. The difference between the actual and the maximum possible speed indicators for a particular car is due to the difference in driving time and the time spent on deceleration, delays and stops: the smaller they are, the more efficient the traffic conditions. In the process of field studies, delays in movement are implicitly taken into account. It is practically impossible to determine their value in the traditional way. The movement of the traffic flow in the relationship of all influencing factors is a random process in which the intervals between cars, their speeds and accelerations, the driver's reaction time, etc., are random variables that depend on the composition and intensity of traffic, which depend on the composition and intensity of the flow , goals of drivers and traffic organization. The use of probabilistic models based on the provisions of the theory of mass service do not allow to sufficiently fully take into account all the diversity of factors of the interaction of cars in the traffic flow. Simulation models implemented thanks to modern computer technology have a number of advantages. The purpose of simulation modeling in this study is to obtain the main characteristics of traffic, as well as the time required to move cars along the simulated road section, with different schemes of traffic organization, different values of intensity, composition and purposes of traffic. Built as a simulation model of the functioning of the section of the ring road, it takes into account both the goals and the composition of the traffic. By taking into account the impact of various technical means of road traffic control, various combinations of traffic intensity, composition, and goals can be studied in certain engineering and planning decisions of the road, as well as rational schemes for the organization of road traffic and the simultaneous movement of transit and local traffic flows can be determined for them. Based on the research objectives and on the basis of the obtained correlational dependencies, approaches have been developed for decision-making on the rational organization of traffic flows, as well as the improvement of engineering and planning solutions to improve the conditions of traffic flows on highways in the suburban areas of Ukrainian cities. These approaches make it possible to evaluate the process of functioning of the main traffic lanes of highways in the zone of influence of the transport interchange, an indicator of the efficiency of the functioning of the transport system, its reliability, stability and interference protection as a reserve for the rational intensity of traffic flows. The results of the article can be used in the design of highways in the suburban area, as well as to improve their functioning

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