Факультет Комп'ютерних технологій і систем (ДІІТ)
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ENG: Faculty of Computer Technologies and Systems
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Browsing Факультет Комп'ютерних технологій і систем (ДІІТ) by Author "Avramenko, Svetlana I."
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Item Improvement of Supervisory Control of Train Movement by Means of Introduction of Operational Zones(Дніпропетровський національний університет залізничного транспорту імені академіка В. Лазаряна, Дніпро, 2018) Nesterenko, Halyna I.; Bekh, Petro V.; Muzykin, Mykhailo I.; Avramenko, Svetlana I.ENG: Purpose. The work is aimed to investigate the feasibility of transferring automatic control to low-density stations of the sections (according to the principle of supervisory control of train line) to the operators at principal stations. Methodology. The article analyzes the work of heavy traffic sections of the Ukrainian Railways JSC. It was found out that the information workload of dispatchers who control the train movement at the sections of the main course, constantly exceeds the permissible level. The possibility of using the technology of supervisory control of train movement by the introduction of operational zones has been investigated. Findings. The authors found out that the capacity of receiving and departure tracks at the stations of the sections is extremely limited. The occupancy of passing loop by the out-of-work trains hinders any regulatory measures at the sections. Trains pass one after another without giving priority, that is, they pass through the section in the order in which they entered it. Due to the limited number of tracks at the front-line intermediate station, freight trains are set for passing by the passenger ones at the distant approaches. This leads to a loss of service speed and reduces the level of utilization of the sections` working capacity. The introduction of operational zones will significantly reduce information flows and facilitate the work of the train dispatchers at the, create the necessary conditions for creative decision-making on the internal section regulation, and will contribute to increase in the service speed of trains. Originality. The article developed a new technology to improve the management of train sections by dividing them into operational zones. In each zone, consisting of two or three passes, the train movement can be controlled by the duty officer of the principal station, performing in this case the functions of the train dispatcher. Practical value. It has been proposed to put trains from technical stations that idle due to uneven movement, especially the trains from the terminal stations (division points) of the locomotive circulation sections, to reserve routes of the front-line intermediate stations. Laying the reserve tracks and their content, taking into account the frequency of use and reduced allowable speed, can be allowed according to less tight standards for the construction of the roadbed, ballast section, sleeper density, taking into account the use of switches and decommissioned tracks.Item Practical Aspects of Improving the Operation Interaction of the Station and Sidings(Silesian University of Technology, Katowice, 2019) Nesterenko, Halyna I.; Muzykin, Mykhailo I.; Avramenko, Svetlana I.ENG: Summary. This research deals with the analysis of the main parameters of the freight operation at the railway station. The modern scientific works on improving the interaction of the station and sidings were analysed. In order to improve the operation interaction of sidings with the Dnipro-Holovnyi railway station and to reduce the time of cars` inactivity, an improved technology of work was proposed. The variants of operation interaction of the station and sidings according to the existing and improved technology were compared. The improved technology of the station's operation makes it possible to significantly reduce the inactivity of local car and the average duration of the car's standing under one cargo operation. The track occupancy coefficient in the receiving-departure yard decreases as well.Item Working Capacity Research of Track Sections(Silesian University of Tecnology, Katowice, Poland, 2017) Nesterenko, Halyna I.; Muzykin, Mykhailo I.; Horobets, Volodymyr L.; Avramenko, Svetlana I.ENG: Abstract. The paper identifies the problems and ways to implement the measures to increase the working and carrying capacity of railway lines. The analysis of this problem shows that for Ukrainian rail network there is no holistic approach to formalize procedures for calculating the working capacity of track sections taking into account technological features of passage of individual car traffic volumes. In addition, there are few studies of factors that influence the level of working capacity use. This necessitates research in this area, which can be a basis for calculating working capacity of sections depending on the influence of various factors. The main ways to increase the working and carrying capacity of railway lines are to increase the weight and length of the trains. But it is a difficult complex task. When solving this task it should be considered restrictions on the useful length of station tracks, restrictions on the traction force of locomotives, possible reduction of train service speed, and many other additional factors. Increase of the train weight makes it possible to increase the carrying capacity of railway lines on the average by 10-30%. But the problem of train weight is closely connected with analysis of the length of existing receiving and departure tracks on the main directions of train movement of OJSC "Ukrainian Railways." Having analyzed the working capacity reserve at all the existing lines of Dnipropetrovsk Management of Rail Transportations we can conclude that the available working capacity exceeds the required one (the reserve is sufficient).