A mathematical programming approach to railway network asset management

C. Fecarotti, J. Andrews

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

Abstract

A main challenge in railway asset management is selecting the maintenance strategies to apply to each asset on the network in order to effectively manage the railway infrastructure given that some performance and safety targets have to be met under budget constraints. Due to economic, functional and operational dependencies between different assets and different sections of the network, optimal solutions at network level not always include the best strategies available for each asset group. This paper presents a modelling approach to support decisions on how to effectively maintain a railway infrastructure system. For each railway asset, asset state models combining degradation and maintenance are used to assess the impact of any maintenance strategy on the future asset performance. The asset state models inform a network-level optimisation model aimed at selecting the best combination of maintenance strategies to manage each section of a given railway network in order to minimise the impact of the assets conditions on service, given budget constraints and performance targets. The optimisation problem is formulated as an integer-programming model. By varying the model parameters, scenario analysis can be performed so that the infrastructure manager is provided with a range of solutions for different combination of budget available and performance targets.

Original languageEnglish
Title of host publicationSafety and Reliability - Safe Societies in a Changing World - Proceedings of the 28th International European Safety and Reliability Conference, ESREL 2018
EditorsCoen van Gulijk, Stein Haugen, Anne Barros, Jan Erik Vinnem, Trond Kongsvik
Place of PublicationBoca Raton
PublisherCRC Press/Balkema
Pages839-848
Number of pages10
ISBN (Print)978-081-538-682-7
Publication statusPublished - 1 Jan 2018
Externally publishedYes
Event28th International European Safety and Reliability Conference, ESREL 2018 - Trondheim, Norway
Duration: 17 Jun 201821 Jun 2018

Conference

Conference28th International European Safety and Reliability Conference, ESREL 2018
CountryNorway
CityTrondheim
Period17/06/1821/06/18

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  • Cite this

    Fecarotti, C., & Andrews, J. (2018). A mathematical programming approach to railway network asset management. In C. van Gulijk, S. Haugen, A. Barros, J. E. Vinnem, & T. Kongsvik (Eds.), Safety and Reliability - Safe Societies in a Changing World - Proceedings of the 28th International European Safety and Reliability Conference, ESREL 2018 (pp. 839-848). CRC Press/Balkema.