Horizontal Flight Efficiency Dataset

Please note that additional quality control measures detected a limited number of abnormal flight trajectories starting towards the end of 2015 which were removed by applying an additional filter as of 01 January 2015. Due to this quality improvement, the period January 2015 - May 2016 might differ slightly from older data releases.

Data description

Horizontal en-route flight efficiency compares the length of actual or planned flight trajectories to the corresponding “achieved” distance.

The achieved distance apportions the Great Circle Distance between two points within the European airspace (reference area). If the origin/destination airport is located outside of European airspace, the entry/exit point into the reference area is used for the calculation.

The planned trajectory is derived from the flight plans submitted by airspace users to the Network Manager. The actual flown trajectory is based on processed radar track data (a.k.a. correlated position reports or CPR) submitted by ANSPs to the EUROCONTROL Enhanced Tactical Flow Management System (ETFMS).

KEP and KEA are performance indicators measuring horizontal en-route flight inefficiency in flight plans (KEP) and in actual flown trajectories (KEA) over a period of 12 months. Please note that the values are NOT monthly averages but the average over the entire 12 months period preceding the given END-DATE.

The KEP indicator is the horizontal flight efficiency calculated using the last filed flight plans to describe the trajectories, while KEA uses the actual trajectories generated via radar data. In order to smooth out the influence of unusual events, the ten best days and the ten worst days (for each measured area) are excluded from the computation.

Methodology

Horizontal en-route flight efficiency methodology is fully consistent with the Single European Sky (SES) Performance Scheme [see (Guastalla 2014) ].

Column naming and types

HFE data

Column nameData sourceLabelColumn descriptionExample
YEARNetwork ManagerYEARReference year2014
MONTH_NUMNetwork ManagerMONTH_NUMMonth (numeric)9
MONTH_MONNetwork ManagerMONTH_MONMonth (3-letter code)SEP
ENTRY_DATENetwork ManagerENTRY_DATEThe entry date considered06-Sep-14 (*)
ENTITY_NAMENetwork ManagerENTITY_NAMEName of the entity to with the data refersFABEC
ENTITY_TYPENetwork ManagerENTITY_TYPEType of the entityFAB (FIR)
MODEL_TYPENetwork ManagerMODEL_TYPEThe type of trajectory used for the calculation (CPF=actual, FTFM=flight plan)FTFM
DIST_FLOWN_KMNetwork ManagerDIST_FLOWN_KMSum of flown distances in kilometre8699586
DIST_DIRECT_KMNetwork ManagerDIST_DIRECT_KMSum of direct flown distances in kilometre8405033
DIST_ACHIEVED_KMNetwork ManagerDIST_ACHIEVED_KMSum of achieved distances in kilometre8255220

(*) The HFE CSV files use ISO 8601 date time format, i.e. 2017-01-02T00:00:00Z

KEP/KEA KPI data

Column nameData sourceLabelColumn descriptionExample
ENTITY_NAMENetwork ManagerENTITY_NAMEName of the entity to with the data refersBLUE MED FAB
ENTITY_TYPENetwork ManagerENTITY_TYPEType of the entityFAB (FIR)
END_DATENetwork ManagerEND_DATEEnd date of the running 12 month29-Feb-2016
INDICATOR_TYPENetwork ManagerINDICATOR_TYPEThe type of indicatorKEP
HFE_ALLNetwork ManagerHFE_ALLEn-route flight efficiency for all days of the 12 month preceding the END_DATE in percent5.19
HFE_KPINetwork ManagerHFE_KPIKey performance indicator (without 10 worst and 10 best days of the 12 month preceding the END_DATE) in percent5.19
EXCLUDED_LOWNetwork ManagerEXCLUDED_LOWDates of the 10 worst days of the 12 month preceding the END_DATE08-MAR-15, 15-MAR-15, 26-APR-15, 31-OCT-15, 01-NOV-15, 07-NOV-15, 14-NOV-15, 15-NOV-15, 25-DEC-15, 26-DEC-15
HFE_BEST_10Network ManagerHFE_BEST_10En-route flight efficiency for the 10 best days of the 12 month preceding the END_DATE in percent4.50
EXCLUDED_HIGHNetwork ManagerEXCLUDED_HIGHDates of the 10 best days of the 12 month preceding the END_DATE27-MAR-15, 30-MAR-15, 01-APR-15, 08-APR-15, 09-APR-15, 23-SEP-15, 23-NOV-15, 25-NOV-15, 27-NOV-15, 26-JAN-16
HFE_WORST_10Network ManagerHFE_WORST_10En-route flight efficiency for the 10 worst days of the 12 month preceding the END_DATE in percent6.07

Calculated Field(s)

The indicator is calculated as the ratio of the two sums (length of trajectories and achieved distances), over all flights considered:

\[ {HFE}_j = ( \frac{\sum_{f,p} L_{fjp}}{\sum_{f,p} H_{fjp}} - 1 ) % \]

where \(L\) is the length of the trajectory and \(H\) is the achieved distance; the index \(f\) is the flight, \(j\) is the airspace and \(p\) is the portion considered.

From the table above \(L\) is \(\text{DIST_FLOWN_KM}\), while \(H\) is \(\text{DIST_ACHIEVED_KM}\).

FAB definitions

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

FAB NameFIRs included
Baltic FABEPWWFIR, EYVLFIR, EYVLUIR
BLUE MED FABLCCCFIR, LCCCUIR, LGGGFIR, LGGGUIR, LIBBFIR, LIBBUIR, LIMMFIR, LIMMUIR, LIRRFIR, LIRRUIR, LMMMFIR, LMMMUIR
DANUBE FABLBSRFIR, LRBBFIR
DK-SE FABEKDKFIR, ESAAFIR
FABECEBBUFIR, EBURUIR, EDGGFIR, EDMMFIR, EDUUUIR, EDVVUIR, EDWWFIR, EHAAFIR, LFBBFIR, LFEEFIR, LFFFFIR, LFFFUIR, LFMMFIR, LFRRFIR, LSASFIR, LSASUIR
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, LZBBFIR
NEFABEETTFIR, EFINFIR, EFINUIR, ENOBFIR, ENORFIR, EVRRFIR
SW FABGCCCFIR, GCCCUIR, LECBFIR, LECBUIR, LECMFIR, LECMUIR, LPPCFIR
UK-Ireland FABEGPXFIR, EGPXUIR, EGTTFIR, EGTTUIR, EISNFIR, EISNUIR

The map below shows all Eurocontrol Member States FIRs and the nine FABs relevant for SES RP2.

Click to zoom in/out. Hoover with the mouse to get further information.

References

Guastalla, Guglielmo. 2014. “Performance Indicator – Horizontal Flight Efficiency.” 01-00. Eurocontrol/PRU. http://ansperformance.eu/methodology/horizontal-flight-efficiency-pi/.