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 name Data source Label Column description Example
YEAR Network Manager YEAR Reference year 2014
MONTH_NUM Network Manager MONTH_NUM Month (numeric) 9
MONTH_MON Network Manager MONTH_MON Month (3-letter code) SEP
ENTRY_DATE Network Manager ENTRY_DATE The entry date considered 06-Sep-14 (*)
ENTITY_NAME Network Manager ENTITY_NAME Name of the entity to with the data refers FABEC
ENTITY_TYPE Network Manager ENTITY_TYPE Type of the entity FAB (FIR)
MODEL_TYPE Network Manager MODEL_TYPE The type of trajectory used for the calculation (CPF=actual, FTFM=flight plan) FTFM
DIST_FLOWN_KM Network Manager DIST_FLOWN_KM Sum of flown distances in kilometre 8699586
DIST_DIRECT_KM Network Manager DIST_DIRECT_KM Sum of direct flown distances in kilometre 8405033
DIST_ACHIEVED_KM Network Manager DIST_ACHIEVED_KM Sum of achieved distances in kilometre 8255220

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

KEP/KEA KPI data

Column name Data source Label Column description Example
ENTITY_NAME Network Manager ENTITY_NAME Name of the entity to with the data refers BLUE MED FAB
ENTITY_TYPE Network Manager ENTITY_TYPE Type of the entity FAB (FIR)
END_DATE Network Manager END_DATE End date of the running 12 month 29-Feb-2016
INDICATOR_TYPE Network Manager INDICATOR_TYPE The type of indicator KEP
HFE_ALL Network Manager HFE_ALL En-route flight efficiency for all days of the 12 month preceding the END_DATE in percent 5.19
HFE_KPI Network Manager HFE_KPI Key performance indicator (without 10 worst and 10 best days of the 12 month preceding the END_DATE) in percent 5.19
EXCLUDED_LOW Network Manager EXCLUDED_LOW Dates of the 10 worst days of the 12 month preceding the END_DATE 08-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_10 Network Manager HFE_BEST_10 En-route flight efficiency for the 10 best days of the 12 month preceding the END_DATE in percent 4.50
EXCLUDED_HIGH Network Manager EXCLUDED_HIGH Dates of the 10 best days of the 12 month preceding the END_DATE 27-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_10 Network Manager HFE_WORST_10 En-route flight efficiency for the 10 worst days of the 12 month preceding the END_DATE in percent 6.07

Calculated Field(s)

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

where is the length of the trajectory and is the achieved distance; the index is the flight, is the airspace and is the portion considered.

From the table above is , while is .

FAB definitions

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

FAB Name FIRs included
Baltic FAB EPWWFIR, EYVLFIR, EYVLUIR
BLUE MED FAB LCCCFIR, LCCCUIR, LGGGFIR, LGGGUIR, LIBBFIR, LIBBUIR, LIMMFIR, LIMMUIR, LIRRFIR, LIRRUIR, LMMMFIR, LMMMUIR
DANUBE FAB LBSRFIR, LRBBFIR
DK-SE FAB EKDKFIR, ESAAFIR
FABEC EBBUFIR, EBURUIR, EDGGFIR, EDMMFIR, EDUUUIR, EDVVUIR, EDWWFIR, EHAAFIR, LFBBFIR, LFEEFIR, LFFFFIR, LFFFUIR, LFMMFIR, LFRRFIR, LSASFIR, LSASUIR
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
NEFAB EETTFIR, EFINFIR, EFINUIR, ENOBFIR, ENORFIR, EVRRFIR
SW FAB GCCCFIR, GCCCUIR, LECBFIR, LECBUIR, LECMFIR, LECMUIR, LPPCFIR
UK-Ireland FAB EGPXFIR, 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

  1. Guastalla, Guglielmo. 2014. “Performance Indicator – Horizontal Flight Efficiency.” 01-00. Eurocontrol/PRU. URL.

    Abstract: Description of the horizontal flight efficiency indicator and its two versions used in the Performance Scheme Regulation – KEP and KEA