Maintenance Costs of High-Speed Lines in Europe State of the Art

López-Pita, Andrés; Teixeira, Paulo Fonseca; Casas, C.; Bachiller, A.; Ferreira, Patrícia Afonso

doi:10.3141/2043-02

Cited by 33 publications

(16 citation statements)

References 2 publications

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“…Griežtinant reikalavimus kelio kokybei, greitųjų traukinių geležinkelio keliai daug geriau prižiūrimi ir skiriama daugiau lėšų jų techninei priežiūrai. Lopez-Pita, Texeira, Casas, Bachiller ir Ferreira (2008), tyrinėdami greitųjų traukinių geležinkelio kelių infrastruktūros priežiūros išlaidas Europoje, nustatė, kad išlaidos prižiūrėti ir remontuoti 1 km tokių kelių gali siekti 55 % visų infrastruktūros eksploatacijos išlaidų. Tačiau kontaktiniam tinkui tenka tik 20 % išlaidų.…”

Section: įVadasunclassified

Geležinkelio Kelio Geometrinių Parametrų Dinamikos Tyrimas Taikant Kelio Kokybės Indeksą / Railways Geometrical Parameters Dynamics Investigation by Track Quality Index

Bubnelis

Slepakovas

Černiauskaitė

et al. 2018

Science - Future of Lithuania

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Rail transport, in competition with other modes of transport, has to improve the quality of passenger and freight transport. In order to carry passengers and goods quickly, efficiently and safely, it is necessary take maintenance railways so that their geometric parameters do not exceed the tolerances. About real railway track condition, the data is obtained by track geometry recording car, measuring seven geometric parameters dispersion. This paper presents the methodology for determining and estimating the geometric parameters of the track geometry, which shows that the track quality index (TQI) is the sum of the variance of seven geometric parameters. Experimental research on the two-track A (8km) and B (11km) a three-year period (2015-2017) for all 12-month KKI, establish their quality dynamics (change over time). These data indicate that the quality of the analyzed sections A and B was good, but due to the increasing mass (in megatons) of transported loads, there is a tendency to deteriorate. Santrauka Geležinkelių transportas, konkuruodamas su kitomis transporto rūšimis, privalo gerinti keleivių ir krovinių vežimų kokybę. Norint greitai, efektyviai ir saugiai vežti keleivius ir krovinius, būtina taip prižiūrėti geležinkelių kelius, kad jų geometrinių parametrų nuokrypiai neviršytų leidžiamųjų nuokrypių. Apie tikrąją geležinkelių kelio būklę duomenys gaunami kelmačiu išmatavus septynių geometrinių parametrų sklaidą. Šiame darbe pateikta geležinkelio kelio geometrinių parametrų sklaidos nustatymo ir vertinimo metodika, kurioje įrodyta, kad kelio kokybės indeksas (KKI) yra septynių geometrinių parametrų dispersijų suma. Eksperimentiškai ištyrus dviejų geležinkelio kelių A (8 km) ir B (11 km) trijų metų laikotarpiu (nuo 2015 iki 2017 metų) visų 12 mėnesių KKI, nustatyta jų kokybės dinamika (kaita bėgant laikui). Šie duomenys rodo, kad ištyrinėtų A ir B ruožų kelio kokybė buvo gera, bet dėl didėjančios pervežtų krovinių suminės masės (megatonų skaičiaus) turi tendenciją blogėti.

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Section: įVadasunclassified

Geležinkelio Kelio Geometrinių Parametrų Dinamikos Tyrimas Taikant Kelio Kokybės Indeksą / Railways Geometrical Parameters Dynamics Investigation by Track Quality Index

Bubnelis

Slepakovas

Černiauskaitė

et al. 2018

Science - Future of Lithuania

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“…After the implicit step, the simulation is done in the ''explicit mode'', in which the long-term behaviour of the track is carried out in pseudo-time domain with the accumulation model used for the ballast layer. The rate of accumulation strain is estimated and then an increment of stress is computed for an increment of number of loading cycles ÁN (from now on, the number of loading cycles is understood as number of train passes) in agreement with (1). The finite element program will redistribute stress in the course of equilibrium iterations.…”

Section: Accmentioning

confidence: 99%

A computational procedure for prediction of ballasted track profile degradation under railway traffic loading

Nguyen

Villalmanzo

Ruigómez

et al. 2015

Proceedings of the Institution of Mechanical Engineers, Part F:

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A computational procedure is developed in the present paper, allowing the prediction of the ballasted track profile degradation under railway traffic loading. In this procedure, an integration of the short-term and long-term mechanical processes of track deterioration is taken into account, using a track degradation model. This degradation model is incorporated into a finite element code where two modes of calculation are implemented: the ''implicit mode'' concerns the short-term track deterioration, in which the hypoplastic model is used for the ballast layer and the dynamic response to an instantaneous train axle passage is obtained to serve as input data for the ''explicit mode'', which concerns the simulation of long-term track deterioration, using the accumulation model for ballast layer. The whole procedure is illustrated on the prediction of the ballasted track profile degradation of a track section of 100 m. The results show a significant influence of the type of track geometry defects and the vehicle velocity on the evolution of track deterioration and the capability of the proposed procedure in reproducing the track profile degradation.

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“…According to [15], the average annual maintenance costs of an overhead line system in a rail network is around 2 €/m, therefore 4 €/dm (double metre).An even higher cost can be assumed for high capacity routes and high speed lines. Reference [16] estimates the annual typical maintenance costs of the overhead line and rail energy supply to be 9,000 € per track kilometre (this is about 20% of the overall maintenance costs of a typical dedicated high speed line). The total cost values can act as a yardstick for the catenary-free energy transfer system.…”

Section: ) Overhead Line Systemmentioning

confidence: 99%

Inductive power supply for heavy rail vehicles

Winter

Mayer

Kaimer

et al. 2013

2013 3rd International Electric Drives Production Conference (EDPC)

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Electrical railway systems are characterized by the energy transfer from fixed installations of the railway energy supply source to the mobile consumers. Today's conventional versions are always characterized by contact-based energy transfer. In the following, the initial approach for a contactless energy transfer for standard gauge railway vehicles is set out. Building on the railway specific requirements of an energy transfer system, a first system draft is outlined. The feasibility for introducing such a contactless transmission system depends on the overall costs arising during the life cycle in comparison with conventional systems. For this reason, the costs of today's installations are considered, and related pros and cons of the alternative transmission systems are discussed. In addition, the perspectives for the introduction of contactless energy transfer are evaluated.

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Maintenance Costs of High-Speed Lines in Europe State of the Art

Cited by 33 publications

References 2 publications

Geležinkelio Kelio Geometrinių Parametrų Dinamikos Tyrimas Taikant Kelio Kokybės Indeksą / Railways Geometrical Parameters Dynamics Investigation by Track Quality Index

Geležinkelio Kelio Geometrinių Parametrų Dinamikos Tyrimas Taikant Kelio Kokybės Indeksą / Railways Geometrical Parameters Dynamics Investigation by Track Quality Index

A computational procedure for prediction of ballasted track profile degradation under railway traffic loading

Inductive power supply for heavy rail vehicles

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