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ATFM Geoff Hounsell
VP Flt Ops Supports Svcs and ATM
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13-15 Dec 2016 ATFM Seminar 2
Air Traffic Flow Management (ATFM)
A service established with the objective of
contributing to a safe, orderly and expeditious flow of air traffic by
ensuring that ATC capacity is utilised to the maximum extent possible, and
that the traffic volume is compatible with the capacities declared by the appropriate ATS authority
(Doc 4444)
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13-15 Dec 2016 ATFM Seminar 3
ATFM
• The term ATFM tends to be over used, Traffic Mgmt may be more appropriate
• ATCOs throughout the world use Traffic Management on a daily basis
“HOLD” or “1 departure every 5 mins”
• Controls own workload but effectively passes the load somewhere else
• Does not solve the traffic problem
• Is not ATFM
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13-15 Dec 2016 ATFM Seminar 4
ATFM
True ATFM is
• centralised
• coordinated
• part of the regional plan
• supported by specific positions
(e.g. Flow Coordinator/ Network Manager)
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13-15 Dec 2016 ATFM Seminar 5
• ATFM is a valid mechanism to control overload
• ATFM is not just arrivals and departures, also includes en-route (e.g. BOBCAT)
• ATFM when properly implemented will deliver operational and environmental efficiencies
BUT…..
• ATFM is not the first solution to capacity issues
Airline View
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13-15 Dec 2016 ATFM Seminar 6
Basic Parameters
• As per ICAO, defined capacity must be established
• Service Provision must be in conjunction with user expectations
• Fundamental component of ASBU
• B0-NOPS
• B0-FRTO
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13-15 Dec 2016 ATFM Seminar 7
ATM System Performance
• ANSPs must establish a mechanism to measure ATM system performance against user expectations
• Framework already within ICAO DOC9854 - GATMOC
• The User Requirements establish clear expectations for operational efficiencies
• ATFM is not a replacement for operational efficiencies
• When a system is operating at or above these expectations and there is still an “overload”, only then
should ATFM be the next solution
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13-15 Dec 2016 ATFM Seminar 8
What do the users want?
• Free flight
• Optimised routing
• Optimised altitudes
• Optimised speeds
• Limited holding (not necessarily NO holding)
• PREDICTABILTY
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13-15 Dec 2016 ATFM Seminar 9
ATFM
• ATFM restricts operations
• However it can be necessary to maintain a safe level of service against over capacity
• ATFM must be implemented on a coordinated basis
• State or on a regional basis solely dependent on size of airspace
• If a state ATFM system requires an adjacent state to “hold or delay aircraft”, it is merely shifting the
load and increasing the risk to the adjacent state
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13-15 Dec 2016 ATFM Seminar 10
② 0240
JAL701 350
JAL6601 350
JAL6705 350
UPS6940 390 CPA533
390
CPA089 350
UPS6991 310
CPA503 390
JAL731 390
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13-15 Dec 2016 ATFM Seminar 11
③ 0300
JAL6705 350
UPS6940 310
CPA533 390
CPA089 350
UPS6991 310
CPA503 390
JAL731 390
CPA509 390
HDA517 390
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13-15 Dec 2016 ATFM Seminar 12
④ 0320
JAL6705 350
CPA089 350
UPS6991 310
CPA503 390
JAL731 390
CPA509 390
HDA517 390
ANA909 390
JAL6603 350
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13-15 Dec 2016 ATFM Seminar 13
0350
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13-15 Dec 2016 ATFM Seminar 14
How?
• ATFM should invoke the core principles of “gate to gate”
• Doesn’t mean we meter to the RWY end
• Need to ensure demand is balanced against capacity but sufficient demand sustained to enable
throughput
• ATFM should include identification of all “choke points”
• Includes departure, arrival and en-route
• Does not need to be H24
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13-15 Dec 2016 ATFM Seminar 15
ATFM
• Maximise efficiencies (in accordance with user expectations)
• Maximum collaboration with all airspace stakeholders
• Define capacities
• If ATFM required, implemented on a broad regional basis with centralised control
• Can be virtual
• Not individual
• Sub-regional (state) systems may assist overload within that region (state) but may be shifting the load elsewhere
• Where possible airport (and approach) capacity issues should not impact overflights (and vice versa)
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13-15 Dec 2016 ATFM Seminar 16
ATFM
• Early notification/ coordination with operators when capacity exceeded
• +/- 1min per hour
• Alternatives available (multiple)
• Maximise flexibility
• ATFM should minimise holding (not necessarily eliminate)
• Transparency of measures applied
• Allow operators to manage their own priorities
• Minimise Specific System requirements to operators
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13-15 Dec 2016 ATFM Seminar 17
ATFM
• All states should be looking towards the regional implementation of ATFM
But
• All states must ensure operational efficiencies are maximised first
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13-15 Dec 2016 ATFM Seminar 18