En-Route ATFM Delay Dataset (FIR)

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 .

Data description

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.

ATFM delay computation

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.

Traffic computation

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).

FAB definitions

The FAB level information is based on an aggregation of Flight Information Regions (FIRs) (ENTITY_TYPE = FAB (FIR)).

FAB NameFIRs includedFMPs
Baltic FABEPWWFIR, EYVLFIR, EYVLUIREPWW2012, EYVCFMP, EPWWFMP
BLUE MED FABLCCCFIR, LCCCUIR, LGGGFIR, LGGGUIR, LIBBFIR, LIBBUIR, LIMMFIR, LIMMUIR, LIRRFIR, LIRRUIR, LMMMFIR, LMMMUIRLIBBFMP, LGGGFMP, LGMDFMP, LCCCFMP, LMMMFMP, LIRRFMPS, LIRRFMPN, LIRRFMPC, LIMMFMP, LIMMFMPA, LIMMFMPE, LIMMFMPT, LIMMFMPW, LIPPFMP, LIPPFMP1, LIRRFMP
DANUBE FABLBSRFIR, LRBBFIRLBSRFMP1, LRBBFMP1, LRBBFMP2, LRBCFMP, LRCKFMP, LRCLFMP, LBSRFMP2, LRARFMP, LBWRFMP, LBSRFMP,LRBBFMP
DK-SE FABEKDKFIR, ESAAFIREKDKFMPE, EKDKFMPW, ESMMFMP, ESMMLOW, ESOSFMP, ESUNFMP, EKDKFMP, EKCHTMA
FABECEBBUFIR, EBURUIR, EDGGFIR, EDMMFIR, EDUUUIR, EDVVUIR, EDWWFIR, EHAAFIR, LFBBFIR, LFEEFIR, LFFFFIR, LFFFUIR, LFMMFIR, LFRRFIR, LSASFIR, LSASUIREBBUFMP, 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 CELDZOFIR, 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, LZBBFIRLJLAFMP, LOVVFMP, LZBBFMP, LKAAFMPU, LKAAFMPL, LKAAFMP, LDZOFMP, LHCCFMP
NEFABEETTFIR, EFINFIR, EFINUIR, ENOBFIR, ENORFIR, EVRRFIREVRRFMP, ENTRFMP, ENSVFMP, ENOSFMP, ENBDFMP, EFPSFMP, EFINFMP, EETTFMP, EFESFMP, ENOSEFMP, ENOSWFMP
SW FABGCCCFIR, GCCCUIR, LECBFIR, LECBUIR, LECMFIR, LECMUIR, LPPCFIRLECBFMP1, LECMFMPN, LECMFMPS, LECPFMP, GCCCFMP, LECBFMP, LECSFMP, LPPCFMP, LECMFMP
UK-Ireland FABEGPXFIR, EGPXUIR, EGTTFIR, EGTTUIR, EISNFIR, EISNUIREGTCFMP, EIDWFMP, EGTTOLYM, EGTTFMP1, EGTTFMP, EGTCOLYM, EISNFMP, EGPXFMP1, EGPXFMP, EGCCFMP

Column naming and types

Column nameData sourceLabelReason GroupColumn descriptionExample
YEARNetwork ManagerYEARReference year2015
MONTH_NUMNetwork ManagerMONTHMonth (numeric)3
MONTH_MONNetwork ManagerMONTH_MONMonth (3-letter code)MAR
FLT_DATENetwork ManagerFLT_DATEDate of flight17/03/2015
ENTITY_NAMEPRUENTITY_NAMEEntity nameFAB CE
ENTITY_TYPEPRUENTITY_TYPEType of the entity to which the data relates (ANSP, FAB, AREA)FAB (AUA)
FLT_ERT_1Network ManagerFlightsTotal number of flights within the respective airspace3853
DLY_ERT_1Network ManagerEn-route ATFM delayMinutes of en-route ATFM delay0
DLY_ERT_A_1Network ManagerA - Accident/IncidentER DisruptionsMinutes of en-route ATFM delay with delay code A - Accident/Incident0
DLY_ERT_C_1Network ManagerC - ATC CapacityER Capacity (ATC)Minutes of en-route ATFM delay with delay code C - ATC Capacity0
DLY_ERT_D_1Network ManagerD - De-icingER WeatherMinutes of en-route ATFM delay with delay code D - De-icing0
DLY_ERT_E_1Network ManagerE - Equipment (non-ATC)ER DisruptionsMinutes of en-route ATFM delay with delay code E - Equipment (non-ATC)0
DLY_ERT_G_1Network ManagerG - Aerodrome CapacityER CapacityMinutes of en-route ATFM delay with delay code G - Aerodrome Capacity0
DLY_ERT_I_1Network ManagerI - Industrial Action (ATC)ER Disruptions (ATC)Minutes of en-route ATFM delay with delay code I - Industrial Action (ATC)0
DLY_ERT_M_1Network ManagerM - Airspace ManagementER CapacityMinutes of en-route ATFM delay with delay code M - Airspace Management0
DLY_ERT_N_1Network ManagerN - Industrial Action (non-ATC)ER DisruptionsMinutes of en-route ATFM delay with delay code N - Industrial Action (non-ATC)0
DLY_ERT_O_1Network ManagerO - OtherER DisruptionsMinutes of en-route ATFM delay with delay code O - Other0
DLY_ERT_P_1Network ManagerP - Special EventER EventsMinutes of en-route ATFM delay with delay code P - Special Event0
DLY_ERT_R_1Network ManagerR - ATC RouteingER CapacityMinutes of en-route ATFM delay with delay code R - ATC Routeing0
DLY_ERT_S_1Network ManagerS - ATC StaffingER Staffing (ATC)Minutes of en-route ATFM delay with delay code S - ATC Staffing0
DLY_ERT_T_1Network ManagerT - Equipment (ATC)ER Disruptions (ATC)Minutes of en-route ATFM delay with delay code T - Equipment (ATC)0
DLY_ERT_V_1Network ManagerV - Environmental IssuesER CapacityMinutes of en-route ATFM delay with delay code V - Environmental Issues0
DLY_ERT_W_1Network ManagerW - WeatherER WeatherMinutes of en-route ATFM delay with delay code W - Weather0
DLY_ERT_NA_1Network ManagerNA - Not specifiedER DisruptionsMinutes of en-route ATFM delay with delay code NA - Not specified0
FLT_ERT_1_DLYNetwork ManagerFLT_ERT_1_DLYNumber of en-route ATFM delayed flights0
FLT_ERT_1_DLY_15Network ManagerFLT_ERT_1_DLY_15Number of en-route ATFM delayed flights (>15 min.)0