A concept aiming at improving airside operations at airports Allows each Airport CDM Partner to optimise their decisions based on shared, accurate and timely information Provides the Airport CDM Partners with adapted procedures, processes and tools
2
Airport CDM Implementation will;
Enhance Operational Efficiency Allow more efficient use of resources Reduce Delay Reduce Environmental impact Provide real time data to the ATM Network
3
Airport CDM Implementation - Elements
Collaborative Management of Flight Updates Variable Taxi Time Calculation
Collaborative Pre-Departure Sequencing
CDM in Adverse Conditions
Milestone Approach Airport CDM Information Sharing
Aircraft TOBT Ready Update Prior to TSAT Boarding Starts
AOBT 15
Off-Block
ATOT 16
Basic definitions
Target Off-Block Time (TOBT) The time that an Aircraft Operator or Ground Handler estimates that an aircraft will be ready, all doors closed, boarding bridge removed, push back vehicle available and ready to start up / push back immediately upon reception of clearance from the Tower
Target Start up Approval Time (TSAT) The time provided by ATC taking into account TOBT, CTOT and / or the traffic situation that an aircraft can expect start up / push back approval
Variable Taxi Times Replace default times Individual Times based on RWY and stand Improvement of Estimated In Block Time Improvement of the Target Take Off Time
Pre-Departure Sequencing Objectives Improve prediction of push back order Improve management of queuing aircraft at holding point
Principle Replace “first come first served” principle Target Start-up Approval Time (TSAT) communicated by ATC All CDM partners can see pre departure
What does “Adverse Conditions” mean?
• Predictable Maintenance / repairs Industrial action Forecast Weather ???? Need for de-icing
Improve the management of predicted and unpredicted disruptions Anticipate strong capacity reductions Facilitate recovery after disruptions
Implementation Status A-CDM Airport A-CDM 2013 HEL
OSL
A-CDM 2014
ARN
Ongoing CPH MAN
DUB
Initial phase BHX
LTN
AMS
DUS HAM
LHR LGW
WAW
SXF
KBP
FRA
BRU
PRG
CDG
STR ORY
MUC VIE
GVA
BUD
ZRH LYS TLS MAD
LIN
LJU
MXP VCE
IST
SOF
BCN
LIS
FCO
PMI
ATH
HER
RHO
Implementation of A-CDM at Implementation of A-CDM atHeathrow Heathrow
Improving efficiency, increasing punctuality and reducing emissions at Heathrow
Improving efficiency, increasing punctuality and reducing emissions at Heathrow FMP Exchange, Brussels FMP Exchange, Brussels Chris Butler Chris Butler
Heathrow is running at 99% capacity Typical Heathrow ATM Profile
1288 ATM’s per day
A-CDM a broad spectrum of benefits / targets HSSE
20% reduction in Airfield Carbon Footprint through reduced ground time delay and engine running time.
SERVICE
Average departure delays reduced by 20%, Arrivals by 10% No increase in on stand delay Stands allocated at 20mins before touch-down
CAPACITY
2 - 3% Improvement in Pier Service levels 20% reduction in ATFM holds for inbound arrivals 30% reduction in tactical restrictions/MDIs Outbound slot compliance with Eurocontrol of 90% (CTOT)
COST TO OPERATE
Airline and HA Operating Costs reduced by 10% 10k tonnes of fuel savings every year IDL dwell increased due to more predictable and stable departures. 10% Reduction in Flight tactical cancellations
INCOME
Simply put, the basis of A-CDM requires that… …..You tell us when you’re going to be ready (TOBT) …..We’ll give you a time to start (TSAT) …..Then “Call for start” when you’ve told us you’ll be ready*
……and ATC will optimise the runway sequence to benefit your operation and reduce delay for all.
This gives us …Improved TOT Prediction 0.00
Take-Off-Time (TOT) Accuracy 2.00
4.00
with CDM without CDM (from flightplans only) 6.00
Improvement : 13% 8.00
30min before take-off 10.00
60min before take-off 12.00 120 115 110 105 100 95
90
85
80 75
70
65
60
55
50
45 40
Time before take-off [min]
35
30
25
20
15 10
5
0
Average TOT [min]
Improvement: 23%
TOT accuracy 4min
Improved TOT predictions lead to: For the network/NMOC: Improved traffic count predictions Better use of available capacity Improved adjustment of CTOT to requested TOT
For AOs: Better suitable CTOT Improved Estimated Landing Time prediction
For Airports: More accurate estimated landing times for inbound flights
For ANSPs: More accurate traffic count predictions via NMOC data distribution services
Operational Feedback to date A step change is data transparency
•
A step change is data transparency
Speed of recovery during disruption
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Taxi-time versus On-time push back – Finding to right balance
The Level of Flexibility (AO/HA)
AOBT, 15’ before SOBT is accepted TOBT Changes TSAT – 3mins to +5mins
•
Sequence stability – Too many TOBT (AO/HA) – Strips changing (ANSP) – TTOT stability (ASNP/Airport)
Turn around management
•
EOBT = TOBT (AO / HA)
•
Priorities management (All)
TTOT predictability Alerts to funnel performance
Airport CDM went into a Standby Mode at Heathrow in May 2012. A Request was received from an airline to place Heathrow A-CDM into standby mode: “…we want to depart at least 150 aircraft per day up to 15 minutes early” “…CDM does not work for short haul hub carriers” “…unacceptable TOBT/TSAT refresh time” “…unable to push back early to free up stand” “…CDM prevents us from managing crew rosters” “…RT congestion” Improvements were made based upon feedback and A-CDM went back into live operations in August 2013.
Results - CDM vs Non CDM Performance ….so what happened? CDM
