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Job order assignment at optimal costs in railway maintenance

 
: Heinicke, Franziska; Simroth, Axel; Tadei, Roberto; Baldi, Mauro M.

Institute for Systems and Technologies of Information, Control and Communication -INSTICC-, Setubal:
ICORES 2013, 2nd International Conference on Operations Research and Enterprise Systems. Proceedings. CD-ROM : Held in conjunction with ICAART 2013, 5th International Conference on Agents and Artificial Intelligence and ICPRAM 2013, 2nd International Conference on Pattern Recognition Applications and Methods; Barcelona, Spain, 16 - 18 February 2013
Setúbal: INSTICC, 2013
S.304-309
International Conference on Operations Research and Enterprise Systems (ICORES) <2, 2013, Barcelona>
International Conference on Agents and Artificial Intelligence (ICAART) <5, 2013, Barcelona>
International Conference on Pattern Recognition Applications and Methods (ICPRAM) <2, 2013, Barcelona>
Englisch
Konferenzbeitrag
Fraunhofer IVI ()
railway maintenance planning; job order scheduling; operations research; integer programming model

Abstract
Tamping is an important part of railway maintenance. Well tamped ballast reduces track irregularities and increases travel safety and comfort. But if the ballast is in a bad condition, the train speed must be restricted, which leads to delays and penalty costs for the operator. In this paper a novel model for the tamping scheduling problem in a short-term planning horizon is presented. In contrast to other railway maintenance scheduling problems the penalty costs caused by deferring tamping activities are considered in the scheduling process beside the travel costs. Three greedy heuristics are presented and compared in different benchmarks. An outlook discusses issues of interest for further research.

: http://publica.fraunhofer.de/dokumente/N-229353.html