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Cost-Based Optimization of Track Geometry Inspection
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Operation, Maintenance and Acoustics.
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Operation, Maintenance and Acoustics.
Machine Design and Production Engineering Lab, Research Institute for the Science and Management of Risks, University of Mons.
Trafikverket.
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2016 (English)Conference paper, Oral presentation only (Refereed)
Abstract [en]

Track geometry bear huge static and dynamic forces that accelerate degradation process. As a result, railway track should be inspected regularly to detect geometry faults and to plan maintenance actions in advanced. An inspection plan that minimizes track maintenance cost is highly desirable by infrastructure managers. This paper proposes constructing an integrated model to identify the optimum track geometry inspection interval. To this end, it develops a long term prediction model combining degradation, shock event, and tamping recovery models. It applies the Wiener process to model track geometry degradation, simulates shock event times using an exponential distribution, and uses a probabilistic model to model recovery after tamping. With the proposed integrated model and simulation, it is possible to identify the optimum track geometry inspection frequencies that minimize total track maintenance costs.

Place, publisher, year, edition, pages
2016.
National Category
Other Civil Engineering
Research subject
Operation and Maintenance
Identifiers
URN: urn:nbn:se:ltu:diva-38068Local ID: c55ed309-0501-42a8-805f-d86f7f125a90OAI: oai:DiVA.org:ltu-38068DiVA: diva2:1011567
Conference
World Congress of Railway Research : 29/05/2016 - 02/06/2016
Note

Godkänd; 2016; 20160826 (solmei)

Available from: 2016-10-03 Created: 2016-10-03 Last updated: 2017-11-25Bibliographically approved

Open Access in DiVA

fulltext(235 kB)25 downloads
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Type fulltextMimetype application/pdf

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Soleimanmeigouni, ImanAhmadi, AlirezaKumar, Uday
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CiteExportLink to record
Permanent link

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Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf