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In order to optimally schedule railway track maintenance operations, it is essential to accurately estimate future track conditions. This study proposes a railway track geometry degradation model that considers uncertainties in the forecast by defining a track geometry reliability parameter. The degradation model is integrated in a multiobjective optimization approach to assess railway track maintenance strategies considering a cost–reliability trade off. Finally, a numerical application of the model to a real case study is presented. The results show the usefulness of the proposed approach to guarantee a required track geometry performance with effective maintenance investments.
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Luis Caetano
Paulo Fonseca Teixeira
Journal of Transportation Engineering
Instituto Politécnico de Lisboa
Instituto de Engenharia de Sistemas e Computadores Investigação e Desenvolvimento
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Caetano et al. (Mon,) studied this question.
www.synapsesocial.com/papers/69ffd67fb124fe581985a411 — DOI: https://doi.org/10.1061/(asce)te.1943-5436.0000825