Gate Airport

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School

University of Alberta *

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Course

101

Subject

Industrial Engineering

Date

Jan 9, 2024

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docx

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Uploaded by SuperMantisMaster931

Choosing the Number of Gates for new international flights A defined hourly flow of aircraft can be accommodated by determining the number of gates, much as other airport facilities. The number of airplanes to be handled during the design hour and the length of time each aircraft spends at a gate determines the number of gates needed. The volume of traffic at the airport determines how many planes must be managed concurrently. The projected traffic during peak hours is typically used as the input to determine the number of gates needed at the airport. Nonetheless, this volume shouldn't be greater than the capacity of the runway in order to have a balanced airport design (book). Demand variables such as aircraft mix, arrival rate, and the type of operation, alongside gate occupancy time, use policy, construction and maintenance expenses, and delay charges, are the most crucial(prof.) . The term "gate occupancy time" refers to how long an aircraft stays in a gate. Whether it is a through flight, or a turnaround trip depends on the size of the aircraft and the kind of operation. When an aircraft is parked at a gate, it is being used for passenger and luggage processing, aircraft maintenance, and flight preparation. Bigger aircraft typically spend more time at their gates than smaller ones. This is due to the fact that servicing, preflight preparation, and refueling larger aircraft take longer. Because different operations have different service requirements, gate occupancy times can also vary. As a result, an aircraft on a through flight might need little to no servicing, which would allow for a 20 to 30- minute gate occupancy time. An aircraft on a turnaround flight, on the other hand, will need full servicing, which could result in gate occupancy times of up to an hour(book). The below example shows lists of the activities that normally take place during a full servicing turnaround time stop of aircraft Airbus A320-200 A320neo. 1. This section provides a typical turn round time chart showing the typical time for ramp activities during aircraft turn round. Actual times may vary due to each operator's specific practices, resources, equipment, and operating conditions. 2. Assumptions used for full servicing turn round time chart A. PASSENGER HANDLING 150 pax: 12 F/C + 138 Y/C. All passengers deplane and board the aircraft. 1 Passenger Boarding Bridge (PBB) used at door 1L. Equipment positioning + opening door = +2 min. Closing door + equipment removal = +1.5 min. No Passenger with Reduced Mobility (PRM) on board. Deplaning: - 150 pax at door 1L - Deplaning rate = 20 pax/min per door - Priority deplaning for premium passengers. Boarding: - 150 pax at door 1L - Boarding rate = 12 pax/min per door - Last Pax Seating allowance (LPS) + head counting = +2 min. B. CARGO 2 cargo loaders + 1 belt loader. Opening door + equipment positioning = +2 min. Equipment removal + closing door = +1.5 min.

100% cargo exchange (baggage only): - FWD cargo compartment: 3 containers - AFT cargo compartment: 4 containers - Bulk compartment: 500 kg (1 102 lb). Container unloading/loading times: - Unloading = 1.5 min/container - Loading = 1.5 min/container. Bulk unloading/loading times: - Unloading = 150 kg/min (331 lb/min) - Loading = 120 kg/min (265 lb/min). C. REFUELING Uplifted quantity: 20 000 l (5 283 US gal) at 50 psig (3.45 bars-rel), one hose (right wing). Truck positioning/removal + connection/disconnection times = +2.5 min. No refuel with pax on board D. CLEANING Cleaning is performed in the available time. E. CATERING 1 catering truck for servicing galleys sequentially at doors 1R and 4R. Equipment positioning + opening door = +2 min. Closing door + equipment removal = +1.5 min. Time to drive from one door to the other = +2 min. Full Size Trolley Equivalent (FSTE) to unload and load: 11 FSTE - 4 FSTE at door 1R - 7 FSTE at door 4R. Time for trolley exchange = 1.2 min per FSTE. F. GROUND HANDLING/GENERAL SERVICING Start of operations: - Bridges/stairs: t0 = 0 - Other equipment: t = t0 Ground Power Unit (GPU): up to 90 kVA. Air conditioning: one hose. Toilet servicing: draining + rinsing. Potable water servicing: 100% uplift, 200 l (53 US gal). The below example shows lists of the activities that normally take place during an outstation turnaround time stop of aircraft Airbus A320-200 A320neo. Terminal Operations - Outstation Turn Round Time 1. This section provides a typical turn round- time chart showing the typical time for ramp activities during aircraft turnround. Actual times may vary due to each operator’s specific practices, resources, equipment and operating conditions. 2. Assumptions used for outstation turn round time chart A. PASSENGER HANDLING 180 pax (all Y/C). All passengers deplane and board the aircraft. 2 stairways used at doors 1L and 4L. Equipment positioning + opening door = +2 min.

Closing door + equipment removal = +1.5 min. No Passenger with Reduced Mobility (PRM) on board. Deplaning: - 90 pax at door 1L - 90 pax at door 4L - Deplaning rate = 18 pax/min per door. Boarding: - 90 pax at door 1L - 90 pax at door 4L - Boarding rate = 12 pax/min per door - Last Pax Seating allowance (LPS) + head counting = +2 min. B. CARGO 2 cargo loaders. Opening door + equipment positioning = +2 min. Equipment removal + closing door = +1.5 min. 100% cargo exchange: - FWD cargo compartment: 3 containers - AFT cargo compartment: 4 containers. Container unloading/loading times: - Unloading = 1.5 min/container - Loading = 1.5 min/container. C. REFUELING No refueling. D. CLEANING Cleaning is performed in available time. E. CATERING One catering truck for servicing the galleys as required. F. GROUND HANDLING/GENERAL SERVICING Start of operations: - Bridges/stairs: t0 = 0 - Other equipment: t = t0. Ground Power Unit (GPU): up to 90 kVA. Air conditioning: one hose. No toilet servicing. No potable water servicing.

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