Subgraph ejection chains and tabu search for the crew scheduling problem

L Cavique, C Rego and I Themido ()
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L Cavique: Instituto Politécnico, EST
C Rego: Faculdade de Ciências, DEIO
I Themido: Instituto Superior Técnico, CESUR

Journal of the Operational Research Society, 1999, vol. 50, issue 6, 608-616

Abstract: Abstract The tabu search algorithms for the Crew Scheduling Problem (CSP) reported in this paper are part of a decision support system for crew scheduling management of the Lisbon Underground. The CPS is formulated as the minimum number of duties necessary to cover a pre-defined timetable under a set of contractual rules. An initial solution is constructed following a traditional run-cutting approach. Two alternative improvement algorithms are subsequently used to reduce the number of duties in the initial solution. Both algorithms are embedded in a tabu search framework: Tabu-crew takes advantage of a form of strategic oscillation for the neighbourhood search while the run-ejection algorithm considers compound moves based on a subgraph ejection chain method. Computational results are reported for a set of real problems.

Keywords: crew scheduling; ejection chains; heuristics; run-cutting; tabu search (search for similar items in EconPapers)
Date: 1999
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Citations: View citations in EconPapers (15)

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DOI: 10.1057/palgrave.jors.2600728

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