Presentation on theme: "Queue Assignment - Flights With Airline Created Slots CDM A & D Meeting June 5, 2001."— Presentation transcript:
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 –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 Slides These slide provide an example of how the slot create function would be used by an airline.
Two Flights Scheduled From IAD to BOS FLT1ETD: S1300ETA: S1430 FLT2ETD: S1400ETA: S1530 Note – Flights FLT1 and FLT2 are in their original schedule order
A GDP Is Run for 1100 to 1500 FLT1ETD: C1500ETA: C1630ALSOT: BOS081630A FLT2ETD: S1400ETA: S1530 Note – Flight FLT2 is now departing EARLIER then flight FLT1
Airline Creates a Slot for FLT2 at Its Current ETA FLT1ETD: C1500ETA: C1630ALSOT: BOS081630A FLT2ETD: S1400ETA: S1530 ALSOT: BOS081530L Note – Flights FLT1 and FLT2 now have slots and are ready to be swapped
Airline Then Swaps the Two Flights FLT1ETD: C1400ETA: C1530ASLOT: BOS081530L FLT2ETD: C1500ETA: C1630ASLOT: BOS081630A Note – Flights FLT1 and FLT2 have now been swapped and are back to their original order
Your consent to our cookies if you continue to use this website.