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EUROCONTROL CFMU

Monthly Network Operations Report MARCH 2011

Amendment date: 08 April-2011 Version 1.0 1 Edited & produced by the CFMU/User Relations and Development Bureau

©2011 European Organisation for the Safety of Air Navigation (EUROCONTROL)

Monthly Network Operations Report Traffic & ATFM Delays

March 2011

HUhttp://www.cfmu.eurocontrol.int Edition No. : 1.0 Version Edition Issue date: 08th April 2011 Reporting Months : March 2011 Author : HWS/SMO Reference : File name : Network Operations Report Number of pages : 14

EUROCONTROL CFMU




0BEXECUTIVE SUMMARY

• March experienced a small growth of traffic whereas ATFM delays have continued to decrease steadily for four months in a row.

• The traffic increased by 1.8% compared to the same month in 2010. However, events in Egypt and Tunisia

knocked about 180 and 25 flights/day off traffic (about 0.8 percentage points) which makes up the difference. (Japan's effect is about -15 flights/day). The current 2011 yearly traffic forecast is 4.3% including a 1.5% recovery of the ash crisis.

• Compared to March 2010, ATFM delays decreased by 25.3%, confirming the trend observed since

November. The average delay per flight was 0.9 minute.

• ATC delays accounted for half of all the Network delays. Most significant ATC delays were recorded in Spain (Madrid including Barajas, Canarias and Barcelona) Paris and Nicosia ACC’s mainly due to structural ATC Capacity (Lack of staff, sectors structure).

• Delays in Langen were due to the continuing staff shortage and the implementation of new airspace

structure. While the VAFORIT implementation was formally completed end of February, Rhein continued to experience delays due to the capacity

• Munich ACC started the implementation of the Paperless Strip System at week-ends.

• Frankfurt delays are due to a mix of bad weather conditions and aerodrome capacity.

• Weather conditions were generally good. However, wind and low visibility affected Gran Canaria,

Oslo, London airports and Amsterdam • Istanbul continues to experience delays due to Aerodrome Capacity.

• Situation in Libya had very limited impact on ATFM delays. However, the route structure in the surrounding

area (mainly Malta ACC) was modified to take on board the closure of the airspace and the military activity.

• Average en-route delay since the beginning of the year is 0.51 minutes per flight. The likelihood of achieving 0.7 minutes en-route delay at the end of the year is very low.

• ATFM slot adherence, the percentage of late departure decreased significantly compared to the previous

months.

EUROCONTROL CFMU




1. 1BTRAFFIC ANALYSIS -TOTAL FLIGHTS Last 13 Months of the Average Daily Traffic

2521

8

2322

9

2751

9

2972

1

2987

7

2951

9

2977

5

2791

1

2501

2

2222

3

2329

7

2440

3

2568

4

16000

18000

20000

22000

24000

26000

28000

30000

MA

R

APR

MA

Y

JUN

JUL

AUG

SEP

OC

T

NO

V

DEC JA

N

FEB

MA

R

Monthly Traffic Trend

1.7%1.7%

5.3%

3.3%

-0.8%

3.8%3.4%

-10.7%

2.0%3.2% 2.9% 3.2% 2.4%

1.8%

-4.6%

-12.0%-10.0%-8.0%

-6.0%-4.0%-2.0%0.0%

2.0%4.0%6.0%

MAR

APR

MAY

JUN

JUL

AUG

SEP

OC

T

NO

V

DE

C

JAN

FEB

MAR

Average Daily Traffic for Last 5 Years

20000

22000

24000

26000

28000

30000

32000

JAN

FEB

MAR

APR

MAY

JUN

JUL

AU

G

SEP

OC

T

NO

V

DEC

2007 2008 2009 2010 2011 12 Months Traffic Trend

-2.9%-2.0%

-1.2%-0.3%

0.6% 0.8% 0.8%

1.4%

-4.6%-4.7%-3.9%

1.7%1.7%

-8.0%

-6.0%

-4.0%

-2.0%

0.0%

2.0%

MA

R

APR

MA

Y

JUN

JUL

AU

G

SEP

OC

T

NO

V

DEC JA

N

FEB

MA

R

Traffic increased 1.8% compared to the same month in 2010. However, events in Egypt and Tunisia knocked about 180 and 25 flights/day off traffic (about 0.8 percentage points) which makes up the difference. (Japan's effect is about -15 flights/day). March 2011 traffic was 5.3% higher than February 2011. The average daily traffic is above the level experienced in 2009 and 2010, but remains below the 2007/2008 levels. 1.7% is below the low forecast for March; traffic did grow more slowly than expected.

EUROCONTROL CFMU




Ukraine and Turkey continued to experience the most significant increase in traffic. The most significant decrease of traffic was registered in Athens (-18.4%), London Stansted (-6.9%) and Palma de Mallorca (-6%). Both scheduled and low cost carriers continue to experience an increase in traffic: RYR (8.1%), EZY (12.1%), DLH (3.1%), and AFR (0.3%). The biggest increase was experienced by Pegasus Airlines (34.1%) and Cimber Air (22.6%). Aegean Airlines (-18.5%), Czech Airlines (-21.8%), Olympic Airlines (-22.4%) and BMI (-33.1%) experienced a significant decrease in traffic. Unidentified operators (mainly General Aviation) recorded a decrease of 6% in March.

2. ATFM DELAYS & REPARTITION

EUROCONTROL CFMU




Average Daily ATFM Delays75

331 1060

82

1588

91

9704

8

1006

27

8062

7

4282

9 7688

6

2795

1

2933

3

2437

7

3120

0

3261

5

020000400006000080000

100000120000140000160000180000

MA

R

APR

MA

Y

JUN

JUL

AUG

SEP

OC

T

NO

V

DE

C

JAN

FEB

MA

R

A IRPORT ATC M ETEO OTHER Monthly ATFM Delays Trend

- 18 .3 %

52 .2 %

101.3%

135.8%

75.2%

128.8%

38.2%

47.0%

10.4%

48.8%

-39.5%-50.4%

-25.3%

95.0%92.9%

-60.0%-40.0%-20.0%

0.0%20.0%40.0%60.0%80.0%

100.0%120.0%140.0%

MAR

APR

MAY

JUN

JUL

AUG

SEP

OC

T

NO

V

DE

C

JAN

FEB

MAR

Average Daily ATFM Delay Repartition

4514 4301

16349

12247

72055541

45452287

13.8% 17.6%50.1% 50.2%22.1% 22.7% 9.4%13.9%0

5000

10000

15000

20000

201003 201103

AIRPORT ATC M ETEO OTHER Monthly Average Delay (min) per flight

Last 13 Months = 2.5 minutes

1.3

1.3

2.7

3.6

5.3

3.3

3.4

2.9

1.7

3.5

1.2

1.2

0.9

0.0

1.0

2.0

3.0

4.0

5.0

6.0

MAR

APR

MAY

JUN

JUL

AUG

SEP

OC

T

NO

V

DEC JA

N

FEB

MAR

All delays graph figures are represented as average minutes per day.

The average daily ATFM delays decreased from 32615 minutes in March 2010 to 24377 minutes in March 2011. March experienced a 25.3% decrease in delay compared to March 2010. The trend of ATFM delay shows a regular decrease since October last year. ATC delays remain the main reason for ATFM delays in March, accounting for 50.2% of all the Network delays. The average ATFM delay per all flight was 0.9 minutes.

EUROCONTROL CFMU




1.1. ATC Delay

Top 20 Ref Loc for ATC Delays in March 2011

100145146152153178211223249265356393631643

92710331111

1554

1977

775

0.0%

3.0%

6.0%

9.0%

12.0%

15.0%

18.0%

MAD

RID

ALL

AC

C

CAN

ARIA

S AC

C/F

IC

PAR

IS A

LL A

CC

LAN

GEN

AC

C

RH

EIN

UAC

NIC

OSI

A AC

C

MAD

RID

/BAR

AJAS

BAR

CEL

ON

A AC

C

WAR

SZAW

A_AC

C

AMST

ERD

AM/S

CH

IPH

OL

STO

CKH

OLM

AC

C

MAA

STR

ICH

T U

AC

BRES

T U

/AC

C

MAR

SEIL

LE A

CC

GEN

EVA

ACC

PAR

IS-C

HAR

LES

DE

GAU

LLE

ZUR

ICH

_FLU

GH

AFEN

GEN

EVE

BREM

EN A

CC

REI

MS

U/A

CC

IND ACTION (ATC) ATC EQUIPM ENT ATC STAFFING ATC CAPACITY

.

EUROCONTROL CFMU




Reasons for ATC Delays in March 2011

39.7%

8.5%

2.1%

0.0% 10.0% 20.0% 30.0% 40.0% 50.0%

ATC CAPACITY

ATC STAFFING

EQUIPM ENT(ATC)

Top 10 Ref Loc for ATC Capacity in March 2011

2683503563945786197181111

15401847

0.0%

5.0%

10.0%

15.0%

20.0%

MAD

RID

ALL

AC

C

CAN

ARIA

S_AC

C/F

IC

PAR

IS A

LL A

CC

NIC

OSI

A AC

C

BAR

CEL

ON

A AC

C

MAD

RID

/BAR

AJAS

LAN

GEN

AC

C

AMST

ERD

AM/S

CH

IPH

OL RH

EIN

UAC

WAR

SZAW

A AC

C

AirportEn Route

Madrid ACC – Delays were mainly at the airport, in PAU, BLI, TZI, ASI and ZMU sectors. Canarias ACC – Significant problems occurred in INB, AAC, RE2, RC2, IGC and D26 sectors. Paris ACC –ATC Capacity delays were experienced mainly in UJ sector. Nicosia ACC –Delays were recorded in E2S, E1 and WN. Barcelona ACC –LGU, DDI, VVI and MMI sectors registered ATC Capacity delays.

Top 10 Ref Loc for Equipment ATC in March 2011

1112121417183065

106

184

0.0%

10.0%

20.0%

30.0%

40.0%

MAA

STR

ICH

T_U

AC

MAD

RID

ALL

AC

C

MAD

RID

/BAR

AJAS

PRES

TWIC

K +

MAN

CH

ESTE

R

NIC

OSI

A AC

C

BREM

EN A

CC

LAN

GEN

AC

C

GEN

EVE

BAR

CEL

ON

A AC

C

BAR

CEL

ON

A

AirportEn Route

On the 29th of March Maastricht UAC experienced a frequency failure.

Overall ATC delays accounted for 50.2% of all ATFM delays. ATC Capacity accounted for 79.0% of all ATC delays and contributed towards 39.7% of all ATFM delays during March 2011. ATC Staffing accounted for 16.9% of all ATC delays and contributed towards 8.5% of all ATFM delays during March 2011

Top 10 Ref Loc for ATC Staffing in March 2011

24263988106121124212

577626

0.0%5.0%

10.0%15.0%20.0%25.0%30.0%35.0%

LAN

GEN

AC

C

RH

EIN

UAC

STO

CKH

OLM

_AC

C

WAR

SZAW

A_AC

C

BRES

T U

/AC

C

GEN

EVE

BREM

EN A

CC

NIC

OSI

A AC

C

MU

NC

HEN

MAD

RID

ALL

AC

C

AirportEn Route

Langen ACC – Delays were mainly recorded in EDGG7, EDGG1 and DLSN sectors. Rhein UAC –Biggest delays occurred in sector FUL1U, UR3C and UR1C sectors. Stockholm ACC – Delays were mainly in 17, 38, 7 and 127 sectors.

Monthly Average ATC Delay (min) per flightLast 12 Months = 1.6 minutes

0.6 0.8

1.7

2.4 2.5

0.4 0.5

2.1

1.2

0.7

2.2

3.8

0.5

0.0

0.5

1.01.5

2.0

2.5

3.03.5

4.0

4.5

MAR

APR

MAY

JUN

JUL

AUG

SEP

OC

T

NO

V

DEC JA

N

FEB

MAR

The average “ATC delay” per flight was 0.5 minutes; which is below the 1.6 minute average for the last 12 months.

EUROCONTROL CFMU




1.2. 7BMeteo Delays

Top 20 Ref Loc for Meteo Delays in March 20111604

617467 393 297 246 233 228 193 183 168 159 128 73 71 50 48 46 45 39

0.0%

5.0%

10.0%

15.0%20.0%

25.0%

30.0%

FRAN

KFU

RT/

MAI

N

CAN

ARIA

S AC

C/F

IC

OSL

O/G

ARD

ERM

OEN

AMST

ERD

AM/S

CH

IPH

OL

LON

DO

N H

EATH

RO

W

LON

DO

N/C

ITY

ZUR

ICH

FLU

GH

AFEN

LON

DO

N T

MA

TC

BRU

SSEL

S_N

ATIO

NAL

MU

NC

HEN

MAD

RID

/BAR

AJAS

LON

DO

N G

ATW

ICK

ISTA

NBU

L/AT

ATU

RK

DU

SSEL

DO

RF

RO

MA/

FIU

MIC

INO

STO

CKH

OLM

/AR

LAN

DA

MAN

CH

ESTE

R

PAR

IS-O

RLY

KOBE

NH

AVN

/KAS

TRU

P

HEL

SIN

KI

(IIM

AILU

VIR

ANO

MAI

NEN

/CIV

DE-ICING SNOW HEAVY RAIN WIND WEATHER (NON DEFINED) THUNDERSTORM S/CBCEILING/LOW VISIBILITY

.

EUROCONTROL CFMU




Reasons for Meteo Delays in March 2011

10.7%

8.9%

1.1%

1.0%

0.9%

0.1%

0.0% 10.0% 20.0% 30.0% 40.0% 50.0%

WIND

CEILING/LOWVISIBILITY

WEATHER(NON_DEFINED)

THUNDERSTORM S/CB

SNOW

HEAVY RAIN

Meteo delays accounted for 22.7% of all ATFM delays. Within the Meteo delays, Wind makes up 47.1% of this and contributes to 10.7% of all delays for March 2011

Top 10 Ref Loc for Wind in March 2011

1466

571

185 143 94 45 26 21 18 150.0%

10.0%20.0%30.0%40.0%50.0%60.0%

FRAN

KFU

RT/

MAI

N

CAN

ARIA

S AC

C/F

IC

LON

DO

N H

EATH

RO

W

ZUR

ICH

_FLU

GH

AFEN

AMST

ERD

AM/S

CH

IPH

OL

KOBE

NH

AVN

/KAS

TRU

P

RO

MA/

FIU

MIC

INO

BRU

SSEL

S N

ATIO

NAL

HEL

SIN

KI

(IIM

AILU

VIR

ANO

MAI

N

MU

NC

HEN

Frankfurt – 7 days were regulated due to Wind in March. Canarias – 5 days were registered with Wind in March.

Top 10 Ref Loc for Ceiling/Low Visibility in March 2011

79103112129132153228246282

412

0.0%

10.0%

20.0%

OSL

O/G

ARD

ERM

OEN

AMST

ERD

AM

SCH

IPH

OL

LON

DO

N/C

ITY

LON

DO

N T

MA

TC

LON

DO

N G

ATW

ICK

MU

NC

HEN

BRU

SSEL

S N

ATIO

NAL

LON

DO

N_H

EATH

RO

W

FRAN

KFU

RT/

MAI

N

ZUR

ICH

_FLU

GH

AFEN

Oslo – 4 days were recorded with low visibility andceiling in March. Amsterdam – 5 days were registered with low visibility in March.

Proportion of Meteo delays in March 2011

WEATHER (NON_DEFINED)

4.7%

THUNDER STORM S/CB

4.4%

HEAVY RAIN0.6%

SNOW4.1%

WIND47.1%

CEILING/LOW VISIBILITY

39.0%

EUROCONTROL CFMU




1.3. 8BAirport Delays

Reasons for Airport Delays in March 2011

12.8%

2.6%

1.4%

0.4%

0.2%

0.1%

0.1%

0.0% 10.0% 20.0% 30.0% 40.0% 50.0%

AD CAPACITY

RUNWAY CONFIG

ACCIDENT/INCIDENT

WORK IN PROGRESS

EQUIP. (NON-ATC)

GROUND OPS ISSUE

ENVIRON. ISSUES

Airport delays accounted for 17.6% of all ATFM delays. Within the Airport delays, Aerodrome Capacity makes up 72.4% of all Airport Delays and accounts for 12.8% of all delays during March 2011.

Top 10 Ref Loc for Airport Delays in March 2011

114148168181213230253

867

1353

182

0.0%5.0%

10.0%15.0%20.0%25.0%30.0%35.0%

FRAN

KFU

RT/

MAI

N

ISTA

NBU

L/AT

ATU

RK

WIE

N-S

CH

WEC

HAT

MAD

RID

/BAR

AJAS

ISTA

NBU

L/SA

BIH

A

GO

KCEN

LON

DO

N/C

ITY

GR

AN C

ANAR

IA

BRU

SSEL

S_N

ATIO

NAL

OSL

O/G

ARD

ERM

OEN

LON

DO

N H

EATH

RO

W

WORK IN PROGRESS ACCIDENT/INCIDENT RUNWAY CONFIG AD CAPACITY

In March significant delays were recorded: EDDF (Frankfurt) experienced Aerodrome Capacity delays and on the 2nd of March Frankfurt experienced Runway constraints due to the Runway configuration. LTBA (Istanbul) experienced delays throughout the whole month. However the situation still continues to improve significantly compared to the previous months.

EUROCONTROL CFMU




1.4. Other Delays

Reasons for Other Delays in March 2011

5.1%

3.4%

0.6%

0.2%

0.0% 10.0% 20.0% 30.0% 40.0% 50.0%

ATC ROUTEING

SPECIAL EVENT

AIRSPACEM ANAGEM ENT

OTHER

Other delays accounted for 9.4% of all ATFM delays. Within the Other delays, ATC Routeing makes up 54.2% of all Other Delays and accounts for 5.1% of all delays during March 2011.

Top 10 Ref Loc for Other Delays in March 2011

303745505682121168

609

1037

0.0%

10.0%

20.0%

30.0%

40.0%

50.0%

LAN

GEN

AC

C

MU

NC

HEN

AC

C

PRES

TWIC

K +

MAN

CH

ESTE

R A

CC

CAN

NES

-

MAN

DEL

IEU

FRAN

KFU

RT/

MAI

N

CO

PEN

HAG

EN_A

CC

OSL

O/G

ARD

ERM

OEN

REI

MS

U/A

CC

RH

EIN

UAC

GEN

EVE

OTHER ATC ROUTING AIRSPACE M ANAGEM ENT SPECIAL EVENTS

Significant “Other” delays were recorded in March. Langen ACC experienced delays due to the new Airspace Structure in the ACC West. Munich ACC experienced delays due to the Paperless Strip System implementation.

EUROCONTROL CFMU




2. 3BATFM REGULATION IMPACT Top 20 ATFM Delay Locations in March 2011

198120822196

3046

775831965100910411129670 660 631 433 428 414 393 362 265 259

0.0%

5.0%

10.0%

15.0%

FRAN

KFU

RT/

MAI

N

CAN

ARIA

S AC

C/F

IC

LAN

GEN

AC

C

MAD

RID

ALL

AC

C

PAR

IS A

LL A

CC

MAD

RID

/BAR

AJAS

ISTA

NBU

L/AT

ATU

RK

RH

EIN

UAC

AMST

ERD

AM/S

CH

IPH

OL

NIC

OSI

A AC

C

OSL

O/G

ARD

ERM

OEN

MU

NC

HEN

AC

C

BAR

CEL

ON

A AC

C

LON

DO

N_H

EATH

RO

W

LON

DO

N/C

ITY

ZUR

ICH

FLU

GH

AFEN

WAR

SZAW

A AC

C

BRU

SSEL

S N

ATIO

NAL

STO

CKH

OLM

AC

C

LON

DO

N T

MA

TC

OTHER M ETEO AIRPORT ATC

Main delays were recorded in Frankfurt due to weather (Wind) and airport capacity. ATC Delays were recorded in Madrid, Canarias, Paris, Langen, Rhein, Nicosia, Madrid Barajas and Barcelona. Significant “Other” delays were experienced in Langen due to the New Airspace Structure in the ACC West and in Munich due to the Paperless Strip System implementation. Canarias, Oslo, Amsterdam and London Heathrow/City experienced delays due to bad weather conditions. Frankfurt and Istanbul caused significant delays due to Aerodrome capacity.

2.1. 10BAverage ATFM Delays per flight

Average Delay (min) per flight in March 2011

0.0

0.5

1.0

1.5

2.0

2.5

01 03 05 07 09 11 13 15 17 19 21 23 25 27 29 31

ATC AIRPORT M ETEO OTHER

Top 10 Ref Loc Average Delays per Regulated Flight in March 2011

20262626 1923 22283455

242

43242 32 43 145 3004 958 5034163

0102030405060

LON

DO

N/C

ITY

MAN

CH

ESTE

R

MAR

SEIL

LE A

CC

SIO

N

PISA

/S. G

IUST

O

(MIL

)C

ANN

ES-

MAN

DEL

IEU

CAN

ARIA

S AC

C/F

IC

OSL

O/G

ARD

ERM

OE

N

MAD

RID

/TO

RR

EJO

N

FRAN

KFU

RT/

MAI

N

A IRPORT ATC M ETEO OTHER

In March 2011, no day experienced an average delay per flight at or above 2 minutes. Wednesday 16th March: Bad weather condition was the main reason for delays particularly in Frankfurt and London. ATC Capacity delays were registered in Madrid, Cyprus and Barcelona. Langen recorded significant delays due to ATC Staffing and to the New Airspace Structure (ATC Routeings). Saturday 12th March: ATC Capacity was the main cause for delays in Madrid, Canarias, Marseille and Paris. Canarias recorded significant delays due to Runway configuration due to wind. Munich experienced delays due to the Paperless Strip System implementation. Sunday 13th March: Canarias registered significant delays due to Wind. ATC Capacity delays occurred in Madrid, Paris and Canarias. The implementation of the Paperless Strip System caused significant delays in Munich. LONDON/CITY had the highest impact on local traffic demand with an average of 55 minutes ATFM delay per flight for 242 flights. It was due to weather and one event involving terminal evacuation.

EUROCONTROL CFMU




3. 4BIMPACT ON FLIGHTS Average Daily Flights > 30 Minutes Delay

170262 199

775

249

710

989

225383

762892874

1705

0200400600800

10001200140016001800

MA

R

APR

MA

Y

JUN

JUL

AU

G

SEP

OC

T

NO

V

DEC JA

N

FEB

MA

R

A IRPORT ATC M ETEO OTHER Average En-Route Daily Flights > 15 Min Delay

347501 561

902

302

1382

2258

352470

14941852

2200

3418

0500

1000150020002500300035004000

MA

R

APR

MA

Y

JUN

JUL

AU

G

SEP

OC

T

NO

V

DEC JA

N

FEB

MA

R

A IRPORT ATC M ETEO OTHER Cumulative YTD En-Route Daily Flights > 15 Min Dly

0200

400600800

100012001400

1600

JAN

FEB

MAR

APR

MAY

JUN

JUL

AUG

SEP

OC

T

NO

V

DE

C

2010 2011 En Route - Situation and YTD 2011

(target : 0.7)

0.200.300.400.500.600.700.800.90

P100 P50 P0 YTD 2011

During March 2011, the average daily number of flights that experienced a delay of 30 minutes or longer accounted for 0.7% of all flights, and decreased by 35.1% from 262 flights per day in March 2010 to 170 flights per day in March 2011 with the following distribution: ATC ................. 63 Flights (37.1%) Airport.............. 22 Flights (12.9%) Meteo............... 56 Flights (32.9%) Other ............... 29 Flights (17.1%) During March 2011, the average daily number of en-route flights that experienced a delay of 15 minutes or longer accounted for 1.3% of all flights, and decreased by 30.8% compared to March 2010 with the following distribution: ATC ................. 267 Flights (76.9%) Meteo............... 17 Flights (5.0%) Other ............... 62 Flight (17.8%) In March 2011 the cumulative Year To Date En-Route daily flights having a delay above 15 minutes is of 347 flights a day and has dropped from the 535 flights per day in March 2010. Average en-route ATFM delay since the beginning of the year is 0.51 minutes per flight. The probability of achieving the 0.7 minutes en-route delay at the end of the year is low (close to the red line).

EUROCONTROL CFMU




4. 5BSLOT ADHERENCE Average Daily Evolution of Early and Late Flights

0

200

400

600

800

1000

1200

2010

03

2010

04

2010

05

2010

06

2010

07

2010

08

2010

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11

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2011

01

2011

02

2011

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0.0%

2.0%

4.0%

6.0%

8.0%

10.0%

12.0%

Nº OF EARLY DEPARTURES Nº OF LATE DEPARTURES % EARLY DEPARTURES % LATE DEPARTURES

For March 2011 the proportion of regulated flights with early departures decreased by 1.1% percentage points compared with March 2010. The proportion of regulated flights with late departures in March 2011 decreased by 1.4% percentage points compared to March 2010. Over the last three months there is a continuous decrease and improvement of flights departing after their slot tolerance window. Some individual airports with a high proportion of flights outside the STW will be addressed to validate the data used and identify issues resulting in non-compliance.

The chart below shows the top 40 airports (more than 300 regulated flights) with their average daily number and proportion of regulated flights that departed outside of the Slot Tolerance Window

Proportion of Regulated Flights Outside STW in March 2011

8 6 5 3 4 12 2 3 2 3 2 2 4 3 5 2 2 8 6 8 3 4 3 5 1 3 4 3 6 2 2 1 2 2 2 6 2 1 37

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For example: MANCHESTER had 30.7% of all regulated flights departed outside of their slot tolerance window (8 flights per day).

network operations report - 201103 - eurocontrol · monthly network operations report ... while the...

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