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- W3110362941 abstract "The present paper contributes on how to model maintenance decision support for the rail components, namely on grinding and renewal decisions, by developing a framework that provides an optimal decision map. A Markov decision process (MDP) approach is followed to derive an optimal policy that minimizes the total costs over an infinite horizon depending on the different condition states of the rail. A practical example is explored with the estimation of the Markov transition matrices (MTMs) and the corresponding cost/reward vectors. The MDP states are defined in terms of rail width, height, accumulated million gross tons (MGT) and damage occurrence. The optimal policy represents a condition-based maintenance plan with the aim of supporting railway infrastructure managers to take the best maintenance decision among a set of three possible actions depending on the state of the rail. Overall, the optimal policy requires railway infrastructure companies to have a tight control over their assets, in particular railway lines, in order to constantly monitor the actual condition of the rails." @default.
- W3110362941 created "2020-12-07" @default.
- W3110362941 creator A5007170181 @default.
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- W3110362941 date "2021-03-01" @default.
- W3110362941 modified "2023-10-14" @default.
- W3110362941 title "Optimizing Maintenance Decision in Rails: A Markov Decision Process Approach" @default.
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- W3110362941 doi "https://doi.org/10.1061/ajrua6.0001101" @default.
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