Availability Approach to Optimizing Railway Track Renewal Operations

This paper proposes a multiobjective optimization approach for planning railway ballast, rail, and sleeper renewal operations. The objective is to support an informed decision that considers not only the railway track life-cycle cost (LCC) but also the track occupation times required to perform interventions. Two objective functions were minimized, as follows: (1) railway track unavailability caused by railway track maintenance and renewal operations, and (2) railway track components’ LCC. Furthermore, to rationalize the renewal strategy, the model considers a multicomponent formulation that assesses, in time and space, the opportunistic combination of railway track renewal activities. A numerical application of the model on a real case study (Lisbon-Oporto line) is developed and discussed. The results show the interest of using this simple multiobjective optimization approach to obtain a decision-making process to support the scheduling of major railway track renewal works with an informed LCC-unavailability trade-off.

• Record URL:
  https://doi.org/10.1061/(ASCE)TE.1943-5436.0000575
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/8674831
• Supplemental Notes:
  • Copyright © 2013 American Society of Civil Engineers
• Authors:
  • Caetano, Luis Filipe
  • Teixeira, Paulo Fonseca
• Publication Date: 2013-9

Language

• English

Media Info

• Media Type: Digital/other
• Features: References;
• Pagination: pp 941-948
• Serial:
  • Journal of Transportation Engineering
  • Volume: 139
  • Issue Number: 9
  • Publisher: American Society of Civil Engineers
  • ISSN: 0733-947X
  • Serial URL: https://ascelibrary.org/journal/jtepbs

Subject/Index Terms

• TRT Terms: Ballast (Railroads); Genetic algorithms; Life cycle costing; Maintenance of way; Optimization; Railroad tracks
• Uncontrolled Terms: Multiobjective optimization; Track renewal
• Subject Areas: Maintenance and Preservation; Operations and Traffic Management; Railroads; I60: Maintenance;

Filing Info

• Accession Number: 01491918
• Record Type: Publication
• Files: TRIS, ASCE
• Created Date: Aug 16 2013 3:51PM