Methodology for determining local speed losses of freight trains  within the boundaries of the railway

Sergey Marinin

doi:10.20295/1815-588X-2024-01-187-198

UDC

656.222.6

METHODOLOGY FOR DETERMINING LOCAL SPEED LOSSES OF FREIGHT TRAINS WITHIN THE BOUNDARIES OF THE RAILWAY Methodology for determining local speed losses of freight trains within the boundaries of the railway

АА Аа

Published in Proceedings of Petersburg Transport University · Pages 187–198 · Rubric: PROBLEMATIC OF TRANSPORT SYSTEM

DOI: https://doi.org/10.20295/1815-588X-2024-01-187-198

Received: 28.03.2024 Accepted: 29.03.2024 Published: 29.03.2024

Authors

Sergey Marinin

Academic degree: candidate of technical sciences

Nizhny Novgorod center for organizing the work of railway stations Russian Federation · Nizhny Novgorod

ABSTRACT

Purpose: to develop a methodology for estimating the total losses of the local speed of freight trains, which, unlike existing methods based on calculating losses caused by the influence of individual operational factors, will be based on the use of statistical data, and take into account the entire range of operational factors that influence the implementation of the indicator under consideration. Methods: formation of a statistical database of railway operational parameters and conducting research on its basis using the tools of probability theory and mathematical statistics: assessing the distribution of the quantities under consideration, correlation and regression analysis. Results: it was established that 75 % of the variability in the local speed of freight trains is explained by changes in the size of the operating fleet of freight cars. Based on this, a methodology has been developed for estimating losses in the local speed of freight trains through the size of the working fleet of freight cars on the railway. A graphical and analytical method for determining these losses is proposed. Practical significance: it is shown that the developed methodology, in contrast to existing ones, makes it possible to more accurately estimate the loss of local speed of freight trains. Its use makes it possible to plan and analyze the implementation of the local speed of freight trains, taking into account the evolving operational work on the railway.

KEYWORDS

operational work, local speed, forecasting indicators, determining losses, correlation analysis, regression equation

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Oleg S. Valinskiy

Deputy Editor-in-chief

Dmitry Kurilkin

It@pgups.ru

Science editor

Andrey Evstaf'ev

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zhurnala P. Redakciya

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Marinin S. A. Methodology for determining local speed losses of freight trains within the boundaries of the railway // Proceedings of Petersburg Transport University. 2024. no. 1. pp. 187-198. DOI: https://doi.org/10.20295/1815-588X-2024-01-187-198. (Date of access 16.09.2026).

MLA

Sergey Marinin. "Methodology for determining local speed losses of freight trains within the boundaries of the railway." Proceedings of Petersburg Transport University 21.1 (2024): 187-198. DOI: https://doi.org/10.20295/1815-588X-2024-01-187-198.

APA

Marinin S. A. (2024). Methodology for determining local speed losses of freight trains within the boundaries of the railway. Proceedings of Petersburg Transport University, 21(1), 187-198. https://doi.org/10.20295/1815-588X-2024-01-187-198

Chicago

Sergey Marinin. "Methodology for determining local speed losses of freight trains within the boundaries of the railway." Proceedings of Petersburg Transport University 21, no. 1 (2024): 187-198. https://doi.org/10.20295/1815-588X-2024-01-187-198.

WIKI

{{cite journal | author = Marinin S. A. | title = Methodology for determining local speed losses of freight trains within the boundaries of the railway | journal = Proceedings of Petersburg Transport University | year = 2024 | volume = 21 | issue = 1 | pages = 187-198 | doi = 10.20295/1815-588X-2024-01-187-198 }}

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METHODOLOGY FOR DETERMINING LOCAL SPEED LOSSES OF FREIGHT TRAINS WITHIN THE BOUNDARIES OF THE RAILWAY Methodology for determining local speed losses of freight trains within the boundaries of the railway

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