Please note that software release 20.0 of the Network Manager on 04 April 2016 introduced a change to improve the accuracy of the ATFM delay calculation for operational purposes. For more information on the change in methodology click here .
The en-route ATFM delay provides an indication of ATFM delays on the ground due to constraints en-route.
In Europe, when traffic demand is anticipated to exceed the available capacity in en route centres or at airports, Air Traffic Control (ATC ) units may request the local Flow Management Position (FMP ) to instigate an Air Traffic Flow Management (ATFM) measure, or regulation . Aircraft expected to arrive during a period of congestion are given ATFM delay at their departure airport, under the authority of the Network Manager, in order to regulate the flow of traffic into the constrained downstream en route sector or airport, thus ensuring safety.
The calculation of En-route ATFM delay is based on a well established and commonly accepted algorithm and has been in use as a commonly agreed proxy for en-route capacity shortfalls since 1999.
The ATFM delays are calculated as the difference between the estimated take-off time calculated from the filed flight plan including updates and the calculated take-off time allocated by the central unit of ATFM.
The reason for the regulation is indicated by the responsible Flow Management Position (FMP).
The delay is attributed to the most constraining ATC unit.
Please note that the delays caused by READY to Depart (REA) messages and ATFM slot extensions were included in ATFM delays until NM release 20.0. As of 4 April 2016, delays due to REA messages and slot extensions are not included any longer which reduces the amount of computed ATFM delay.
The number of flights is based on Flight Information Region (FIR) boundaries (which are not necessarily coincidental with the airspace controlled by the respective ANSP).
The FAB level information is based on an aggregation of Flight Information Regions (FIRs) (ENTITY_TYPE = FAB (FIR)).
| FAB Name | FIRs included | FMPs |
|---|---|---|
| Baltic FAB | EPWWFIR, EYVLFIR, EYVLUIR | EPWW2012, EYVCFMP, EPWWFMP |
| BLUE MED FAB | LCCCFIR, LCCCUIR, LGGGFIR, LGGGUIR, LIBBFIR, LIBBUIR, LIMMFIR, LIMMUIR, LIRRFIR, LIRRUIR, LMMMFIR, LMMMUIR | LIBBFMP, LGGGFMP, LGMDFMP, LCCCFMP, LMMMFMP, LIRRFMPS, LIRRFMPN, LIRRFMPC, LIMMFMP, LIMMFMPA, LIMMFMPE, LIMMFMPT, LIMMFMPW, LIPPFMP, LIPPFMP1, LIRRFMP |
| DANUBE FAB | LBSRFIR, LRBBFIR | LBSRFMP1, LRBBFMP1, LRBBFMP2, LRBCFMP, LRCKFMP, LRCLFMP, LBSRFMP2, LRARFMP, LBWRFMP, LBSRFMP,LRBBFMP |
| DK-SE FAB | EKDKFIR, ESAAFIR | EKDKFMPE, EKDKFMPW, ESMMFMP, ESMMLOW, ESOSFMP, ESUNFMP, EKDKFMP, EKCHTMA |
| FABEC | EBBUFIR, EBURUIR, EDGGFIR, EDMMFIR, EDUUUIR, EDVVUIR, EDWWFIR, EHAAFIR, LFBBFIR, LFEEFIR, LFFFFIR, LFFFUIR, LFMMFIR, LFRRFIR, LSASFIR, LSASUIR | EBBUFMP, EDBBFMP, EDBBFMP1, EDFFFMP, EDGGFMP1, EDGGFMP2, EDLLFMP, EDLLFMP1, EDMERGE, EDMMFMP, EDMMFMPA, EDMMFMPE, EDMMFMPN, EDMMFMPS, EDUUFMP, EDUUFMPC, EDUUFMPE, EDUUFMPS, EDUUFMPW, EDWWFMP, EDYYFMP, EHAAFMP, LFBBAPP, LFBBFMP, LFBBFMPL, LFBBFMPU, LFBBNU, LFBBSU, LFEEAPP, LFEEFMP, LFFFAD, LFFFFMP, LFFFFMPE, LFFFFMPW, LFMMAPP, LFMMEL, LFMMEU, LFMMFMP, LFMMFMPE, LFMMFMPL, LFMMFMPU, LFMMFMPW, LFMMWL, LFMMWU, LFRRAPP, LFRRFMP, LSAZCTL, LSAGFMP, LSAGFMPL, LSAGFMPU, LSAGLFMP, LSAGUFMP, LSAZFMP, LSAZLFMP, LSAZCFL, LFRRFMP1 |
| FAB CE | LDZOFIR, LHCCFIR, LJLAFIR, LKAAFIR, LOVVFIR, LQSBFIR, LQSBUIR, LZBBFIR | |
| FAB CE (SES RP1) | LHCCFIR, LJLAFIR, LKAAFIR, LOVVFIR, LZBBFIR | |
| FAB CE (SES RP2) | LDZOFIR, LHCCFIR, LJLAFIR, LKAAFIR, LOVVFIR, LZBBFIR | LJLAFMP, LOVVFMP, LZBBFMP, LKAAFMPU, LKAAFMPL, LKAAFMP, LDZOFMP, LHCCFMP |
| NEFAB | EETTFIR, EFINFIR, EFINUIR, ENOBFIR, ENORFIR, EVRRFIR | EVRRFMP, ENTRFMP, ENSVFMP, ENOSFMP, ENBDFMP, EFPSFMP, EFINFMP, EETTFMP, EFESFMP, ENOSEFMP, ENOSWFMP |
| SW FAB | GCCCFIR, GCCCUIR, LECBFIR, LECBUIR, LECMFIR, LECMUIR, LPPCFIR | LECBFMP1, LECMFMPN, LECMFMPS, LECPFMP, GCCCFMP, LECBFMP, LECSFMP, LPPCFMP, LECMFMP |
| UK-Ireland FAB | EGPXFIR, EGPXUIR, EGTTFIR, EGTTUIR, EISNFIR, EISNUIR | EGTCFMP, EIDWFMP, EGTTOLYM, EGTTFMP1, EGTTFMP, EGTCOLYM, EISNFMP, EGPXFMP1, EGPXFMP, EGCCFMP |
| Column name | Data source | Label | Reason Group | Column description | Example |
|---|---|---|---|---|---|
| YEAR | Network Manager | YEAR | Reference year | 2015 | |
| MONTH_NUM | Network Manager | MONTH | Month (numeric) | 3 | |
| MONTH_MON | Network Manager | MONTH_MON | Month (3-letter code) | MAR | |
| FLT_DATE | Network Manager | FLT_DATE | Date of flight | 17/03/2015 | |
| ENTITY_NAME | PRU | ENTITY_NAME | Entity name | FAB CE | |
| ENTITY_TYPE | PRU | ENTITY_TYPE | Type of the entity to which the data relates (ANSP, FAB, AREA) | FAB (AUA) | |
| FLT_ERT_1 | Network Manager | Flights | Total number of flights within the respective airspace | 3853 | |
| DLY_ERT_1 | Network Manager | En-route ATFM delay | Minutes of en-route ATFM delay | 0 | |
| DLY_ERT_A_1 | Network Manager | A - Accident/Incident | ER Disruptions | Minutes of en-route ATFM delay with delay code A - Accident/Incident | 0 |
| DLY_ERT_C_1 | Network Manager | C - ATC Capacity | ER Capacity (ATC) | Minutes of en-route ATFM delay with delay code C - ATC Capacity | 0 |
| DLY_ERT_D_1 | Network Manager | D - De-icing | ER Weather | Minutes of en-route ATFM delay with delay code D - De-icing | 0 |
| DLY_ERT_E_1 | Network Manager | E - Equipment (non-ATC) | ER Disruptions | Minutes of en-route ATFM delay with delay code E - Equipment (non-ATC) | 0 |
| DLY_ERT_G_1 | Network Manager | G - Aerodrome Capacity | ER Capacity | Minutes of en-route ATFM delay with delay code G - Aerodrome Capacity | 0 |
| DLY_ERT_I_1 | Network Manager | I - Industrial Action (ATC) | ER Disruptions (ATC) | Minutes of en-route ATFM delay with delay code I - Industrial Action (ATC) | 0 |
| DLY_ERT_M_1 | Network Manager | M - Airspace Management | ER Capacity | Minutes of en-route ATFM delay with delay code M - Airspace Management | 0 |
| DLY_ERT_N_1 | Network Manager | N - Industrial Action (non-ATC) | ER Disruptions | Minutes of en-route ATFM delay with delay code N - Industrial Action (non-ATC) | 0 |
| DLY_ERT_O_1 | Network Manager | O - Other | ER Disruptions | Minutes of en-route ATFM delay with delay code O - Other | 0 |
| DLY_ERT_P_1 | Network Manager | P - Special Event | ER Events | Minutes of en-route ATFM delay with delay code P - Special Event | 0 |
| DLY_ERT_R_1 | Network Manager | R - ATC Routeing | ER Capacity | Minutes of en-route ATFM delay with delay code R - ATC Routeing | 0 |
| DLY_ERT_S_1 | Network Manager | S - ATC Staffing | ER Staffing (ATC) | Minutes of en-route ATFM delay with delay code S - ATC Staffing | 0 |
| DLY_ERT_T_1 | Network Manager | T - Equipment (ATC) | ER Disruptions (ATC) | Minutes of en-route ATFM delay with delay code T - Equipment (ATC) | 0 |
| DLY_ERT_V_1 | Network Manager | V - Environmental Issues | ER Capacity | Minutes of en-route ATFM delay with delay code V - Environmental Issues | 0 |
| DLY_ERT_W_1 | Network Manager | W - Weather | ER Weather | Minutes of en-route ATFM delay with delay code W - Weather | 0 |
| DLY_ERT_NA_1 | Network Manager | NA - Not specified | ER Disruptions | Minutes of en-route ATFM delay with delay code NA - Not specified | 0 |
| FLT_ERT_1_DLY | Network Manager | FLT_ERT_1_DLY | Number of en-route ATFM delayed flights | 0 | |
| FLT_ERT_1_DLY_15 | Network Manager | FLT_ERT_1_DLY_15 | Number of en-route ATFM delayed flights (>15 min.) | 0 |