Pairings Definition A sequence of duty periods, interspersed with periods of rest, that begins and ends at a cre domicile 2/212021 Barnhart 1.206J/16.77J/ESD. 15J
2/21/2021 Barnhart 1.206J/16.77J/ESD.215J 11 Pairings Definition: A sequence of duty periods, interspersed with periods of rest, that begins and ends at a crew domicile
Pairing rules Rules First duty starts /last duty ends at domicile Duties are sequential in space/time Minimum rest between duties Maximum layover time Maximum number of days away from base 8-in-24 rule 2/212021 Barnhart 1.206J/16.77J/ESD. 15J
2/21/2021 Barnhart 1.206J/16.77J/ESD.215J 12 Pairing Rules Rules: • First duty starts/last duty ends at domicile • Duties are sequential in space/time • Minimum rest between duties • Maximum layover time • Maximum number of days away from base • 8-in-24 rule
Pairing cost function Maximum of Sum of duty costs a total time away from base tafb Minimum guaranteed pairing pay 2/212021 Barnhart 1.206J/16.77J/ESD. 15J
2/21/2021 Barnhart 1.206J/16.77J/ESD.215J 13 Pairing Cost Function • Maximum of: – Sum of duty costs – f p * total time away from base (TAFB) – Minimum guaranteed pairing pay
Schedules Rules Minimum rest between pairings Maximum monthly flying time Maximum time on duty Minimum total number of days off Two key differences Cost function focuses on crew preferences Schedules individuals rather than complete crews 2/212021 Barnhart 1.206J/16.77J/ESD. 15J
2/21/2021 Barnhart 1.206J/16.77J/ESD.215J 14 Schedules Rules: • Minimum rest between pairings • Maximum monthly flying time • Maximum time on duty • Minimum total number of days off Two key differences: • Cost function focuses on crew preferences • Schedules individuals rather than complete crews
Crew Scheduling problems Domestic International Cockpit Crews Cockpit Crews 目目 Cabin Crews Cabin Crews 目目 Recovery problem 2/212021 Barnhart 1.206J/16.77J/ESD. 15J
2/21/2021 Barnhart 1.206J/16.77J/ESD.215J 15 Crew Scheduling Problems Crew Scheduling Problem Crew Scheduling Problem Crew Pairing Assignment Crew Scheduling Problem Crew Pairing Assignment Daily Weekly Exception Bidline Rostering Cockpit Crews Cabin Crews Crew Scheduling Problem Crew Pairing Assignment Daily Weekly Exception Bidline Rostering Crew Scheduling Problem Crew Pairing Assignment Daily Weekly Exception Bidline Rostering Domestic International Cockpit Crews Crew Scheduling Problem Crew Pairing Assignment Daily Weekly Exception Bidline Rostering Cockpit Crews Crew Scheduling Problem Crew Pairing Assignment Daily Weekly Exception Bidline Rostering Cabin Crews Crew Scheduling Problem Crew Pairing Assignment Daily Weekly Exception Bidline Rostering Cabin Crews Crew Scheduling Problem Crew Pairing Assignment Daily Weekly Exception Bidline Rostering Recovery Problem Domestic International Cockpit Crews Crew Scheduling Problem Crew Pairing Assignment Daily Weekly Exception Bidline Rostering Cockpit Crews Crew Scheduling Problem Crew Pairing Assignment Daily Weekly Exception Bidline Rostering Cabin Crews Crew Scheduling Problem Crew Pairing Assignment Daily Weekly Exception Bidline Rostering Cabin Crews Crew Scheduling Problem Crew Pairing Assignment Daily Weekly Exception Bidline Rostering