Irregularities in railway tracks are a key factor influencing the safety of trains. In this paper, rail track is considered to consist of consecutive track maintenance units whose individual defect states can be quantified in terms of a track quality index. A Markov stochastic process approach is used to evaluate the deterioration of a maintenance unit. A hazard model is formulated using the heterogeneity of the maintenance units, and a matrix of the Markov transition probabilities is constructed. The parameters of the developed models are estimated via a maximum log-likelihood function. The prediction model is validated with track irregularity data measured using track geometry cars.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Markov-based model for the prediction of railway track irregularities


    Beteiligte:
    Bai, Lei (Autor:in) / Liu, Rengkui (Autor:in) / Sun, Quanxin (Autor:in) / Wang, Futian (Autor:in) / Xu, Peng (Autor:in)


    Erscheinungsdatum :

    2015-02-01


    Format / Umfang :

    10 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




    Markov-based model for the prediction of railway track irregularities

    Bai, Lei / Liu, Rengkui / Sun, Quanxin et al. | Tema Archiv | 2015



    Model based measurement of railway track irregularities

    Baier, Martin / Rulka, Wolfgang / Abel, Dirk | Tema Archiv | 2009


    Correction of railway track geometric irregularities

    Yoshimura, A. / Furukawa, A. / Kamiyama, M. et al. | British Library Conference Proceedings | 2000


    Railway Wheelset Lateral Excitation by Track Irregularities

    Illingworth,R. / Br.Railw.Board,Derby,GB | Kraftfahrwesen | 1977