Research Article
Cost-Effective Flight Sequencing and Gate Assignment Considering Transfer Time under Pandemic Conditions
| | Variables | Descriptions | Units |
| | Arrival time of flight i | hh:mm | | C | Total cost | $/cycle | | Minimized total cost | $/cycle | | Supplier cost | $/cycle | | User cost | $/cycle | | Dwell time of flight i | min | | Departure time of flight i | hh:mm | | Transfer distance between gates k and TH | m | | G | Set of available gates | — | | Number of gates | — | | i,j | Index of flights | — | | K | Number of servers | Servers | | k,l | Index of gates | — | | N | Set of connecting flights | — | | n | Number of flights | Flights | | O | Arrival time of the first flight in a batch | hh:mm | | P | Total transfer demand | pass | | Number of transfer passengers of flight i | pass | | Transfer demand from flight i to j and pij = pmij + psij | pass | | Number of passengers who missed connecting from flight i to j | pass | | Number of connecting passengers from flight i to j | pass | | Average service rate per service channel | pass/min | | Arrival rate | pass/min | | Service rate | pass/min | | Transfer claim time | min | | Queue dissipation time | min | | Queue formation time | min | | Queuing delay | min | | Flight safety checkup time | min | | Elapsed time from O to the arrival time of flight i | min | | Elapsed time from O to the departure time of flight i | min | | Walking speed | m/min | | Mean walking speed | m/min | | Unit dwelling cost of flight i | $/min | | Penalty per passenger who missed a connection | $/pass | | Value of transfer walking time | $/pass-min | | Unit cost of gate k | $/min | | Value of wait time | $/pass-min | | Transfer time from the gate of flight i to the gate of flight j | min | | Wait time of passenger from flight i at the gate of flight j | min | | Binary variable; Xki = 1 if flight i docks at gate k; otherwise, 0 | — |
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