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Investigation of the Track Gauge in Curved Sections, Considering Hungarian Railway Lines

Auteur(s): ORCID (Department of Transport Infrastructure and Water Resources Engineering, Széchenyi István University, H-9026 Győr, Hungary)
(Department of Transport Infrastructure and Water Resources Engineering, Széchenyi István University, H-9026 Győr, Hungary)
(Department of Transport Infrastructure and Water Resources Engineering, Széchenyi István University, H-9026 Győr, Hungary)
Médium: article de revue
Langue(s): anglais
Publié dans: Infrastructures, , n. 4, v. 8
Page(s): 69
DOI: 10.3390/infrastructures8040069
Abstrait:

In this paper, the authors examined the change in track gauges in curves for several railway lines with low and high traffic in Hungary (i.e., secondary lines and main lines). They covered the processing of raw data as well as statistical calculations. The considered curved sections were transition curves (TCs) and circular curves (CCs), as well as—in some cases—entire curves (ECs), including TCs and CCs, but not dividing them into parts. The change of track gauge parameter as a function of elapsed time was analyzed based on the distribution functions by calculating the Vaszary-type shape number. A statistical test with the Kolmogorov–Smirnov test was performed, in which the question as to whether the measurement data of the railway lines followed a normal or lognormal distribution was examined; additionally, the skewness and kurtosis parameters were calculated and analyzed. The authors also took into account the impact of the track system and the sleepers. For the selected curves, the authors observed how the average track gauge changes and categorized them according to tolerances. In presenting and summarizing the tests, the authors formulated a conclusion for each study fulfilled. Despite higher traffic loads, the value of track degradation over time is lower for mainline curves than for secondary line curves. It is because the main line has stricter tolerances due to the higher speeds allowed, and more maintenance work is carried out on these lines. The authors concluded that the type of the track system and the sleeper type also influence the change in track gauges in curves. The accurate deterioration ratios for all analyses are contained in the paper.

Copyright: © 2023 the Authors. Licensee MDPI, Basel, Switzerland.
License:

Cette oeuvre a été publiée sous la license Creative Commons Attribution 4.0 (CC-BY 4.0). Il est autorisé de partager et adapter l'oeuvre tant que l'auteur est crédité et la license est indiquée (avec le lien ci-dessus). Vous devez aussi indiquer si des changements on été fait vis-à-vis de l'original.

  • Informations
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  • Reference-ID
    10722702
  • Publié(e) le:
    22.04.2023
  • Modifié(e) le:
    10.05.2023
 
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