Solving large scale crew scheduling problems

The crew pairing problem is posed as a set partitioning zero-one integer program. Variables are generated as legal pairings meeting all work rules. Dual values obtained from solving successive large linear program relaxations are used to prune the search tree. In this paper we present a graph based...

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Bibliographic Details
Published in:European journal of operational research Vol. 97; no. 2; pp. 260 - 268
Main Authors: Chu, Hai D., Gelman, Eric, Johnson, Ellis L.
Format: Journal Article
Language:English
Published: Amsterdam Elsevier B.V 01.03.1997
Elsevier
Elsevier Sequoia S.A
Series:European Journal of Operational Research
Subjects:
Airlines
Algorithms
Heuristic
Integer programming
Operations research
Scheduling
Studies
ISSN:0377-2217, 1872-6860
Online Access:Get full text
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Summary:The crew pairing problem is posed as a set partitioning zero-one integer program. Variables are generated as legal pairings meeting all work rules. Dual values obtained from solving successive large linear program relaxations are used to prune the search tree. In this paper we present a graph based branching heuristic applied to a restricted set partitioning problem representing a collection of ‘best’ pairings. The algorithm exploits the natural integer properties of the crew pairing problem. Computational results are presented to show realized crew cost savings.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
content type line 14
ISSN:0377-2217
1872-6860
DOI:10.1016/S0377-2217(96)00196-8