Queue Assignment - Flights With Airline Created Slots

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Queue Assignment - Flights With Airline Created Slots. CDM A & D Meeting June 5, 2001. SSR – Airline Created Slot. SSR Added The Slot Create Message When GDP Delays Extend Beyond a Program Two Flights Operated by the Same Airline for the Same City Pair Could Be Forced to Operate Out of Order
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Queue Assignment - Flights With Airline Created SlotsCDM A & D MeetingJune 5, 2001SSR – Airline Created Slot
  • SSR Added The Slot Create Message
  • When GDP Delays Extend Beyond a Program Two Flights Operated by the Same Airline for the Same City Pair Could Be Forced to Operate Out of Order
  • Slot Create Allows an Airline to Voluntarily Assign a Control to an Uncontrolled Flight at Its Current ETA, Then Swap the Two Flights to Get Them Back Into The Proper Sequence
  • Slot Create – Potential Issue
  • An Unintended Consequence of the Slot Create Function Is That It Could Re-distribute Delays Among Flights If the Program Is Extended
  • If an Airline Uses a Slot Create Message on a Flight, It Will Move That Flight From Queue 3 to Queue 2 in the Next Extension, Thus Giving That Airline Slightly Less Delay, and Distributing a Little More Delay to Everyone Else in Queue 3
  • RBS – Prioritization Queues
  • Queue 1 – Exempt Flights
  • Sort Order - ETA
  • Queue 2 – Previously Controlled Flights
  • Sort Order - ASLOT
  • Queue 3 – Newly Controlled Flights
  • Sort Order – IGTA - taxi
  • Solution
  • ETMS - Modify ADL to Allow Identification of Flights Voluntarily Controlled by the Airline
  • GDP Flag Will Not Be Set For Flights Voluntarily Controlled by the carrier
  • FSM - Place Voluntarily Controlled Flights in Queue 3 Instead of Queue 2
  • Any Flight With a Slot but No GDP, FAD, or GSD Flag Will Be Placed in Queue 3 Rather Than Queue 2
  • Issues to Watch
  • Flight Order
  • Flights Voluntarily Controlled by the Carrier Will Not Maintain Slot Order in Relation to Other Previously Controlled Flights Due to Being in a Different Queue.
  • Airlines Will Need to Reorder These Flights After a Revision/Extension Event
  • Backup SlidesThese slide provide an example of how the slot create function would be used by an airline.Two Flights Scheduled From IAD to BOS
  • FLT1 ETD: S1300 ETA: S1430
  • FLT2 ETD: S1400 ETA: S1530
  • Note – Flights FLT1 and FLT2 are in their original schedule orderA GDP Is Run for 1100 to 1500
  • FLT1 ETD: C1500 ETA: C1630 ALSOT: BOS081630A
  • FLT2 ETD: S1400 ETA: S1530
  • Note – Flight FLT2 is now departing EARLIER then flight FLT1Airline Creates a Slot for FLT2 at Its Current ETA
  • FLT1 ETD: C1500 ETA: C1630 ALSOT: BOS081630A
  • FLT2 ETD: S1400 ETA: S1530ALSOT: BOS081530L
  • Note – Flights FLT1 and FLT2 now have slots and are ready to be swappedAirline Then Swaps the Two Flights
  • FLT1 ETD: C1400 ETA: C1530 ASLOT: BOS081530L
  • FLT2 ETD: C1500 ETA: C1630 ASLOT: BOS081630A
  • Note – Flights FLT1 and FLT2 have now been swapped and are back to their original order
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