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Förslaget inkom 2002-10-18

Scheduling of airline crews - The group construction problem

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Carmen Systems delivers a large planning and scheduling system used by major airlines over the world. The crew scheduling
problem is solved in different steps and one step is the assignment of schedules to the individual crew members. Normally this results in each person getting their own schedule, flying with different persons every day.

Iberia is an airline that schedules their cabin crew in groups, so that each group of people will fly together for a month. This is achieved by first constructing the groups, then using only the purser in the crew assignment step and finally copying the schedule from the purser to all the members in the group. When copying the schedule it is important that the group is homogenous in certain aspects. Otherwise parts of the schedule will not be possible to copy, which will result in so called drop-outs that the planner
has to resolve manually. Thus the objective of the group construction problem is to construct homogenous groups that will minimize the problems/drop-outs during the copying of schedules.


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