ATFM Slot Adherence Dataset

Data description

ATFM departure slots are allocated centrally by the European Network Manager upon the request of the local Flow Management Position (FMP), when an imbalance between demand and capacity is foreseen at airports and/or en-route. The purpose of such regulation is to hold aircraft on the ground.

An ATFM slot tolerance window is available to ATC to sequence departures. The standard slot tolerance window is [-5 minutes, +10 minutes]. ATC at the departure airport has a joint responsibility with aircraft operators to ensure that flights departure within the allocated ATFM slot tolerance window in order to optimise traffic flow. ATFM departure slot adherence, simply named ATFM slot adherence hereafter, measures the share of take-offs inside the slot tolerance window of [-5 minutes, +10 minutes].

ATFM slot adherence monitoring is a pre-requisite to fine tune traffic predictions at the departure, en-route airspace and at the destination airports. The higher the number of regulated departing aircraft inside the assigned ATFM standard window, the more accurate the predicted traffic and associated down-stream ATFM measures.

Column naming and types

Column name Data source Label Column description Example
YEAR Network Manager YEAR Reference year 2015
MONTH_NUM Network Manager MONTH_NUM Month (numeric) 5
MONTH_MON Network Manager MONTH_MON Month (3-letter code) MAY
FLT_DATE Network Manager FLT_DATE Date of flight 5-Jan-2014
APT_ICAO Network Manager APT_ICAO ICAO 4-letter airport designator LFPG
APT_NAME PRU APT_NAME Airport name Paris/ Charles de Gaulle
STATE_NAME PRU STATE_NAME Name of the State in which the airport is located France
FLT_DEP_1 Network Manager IFR departures Number of IFR departures (based on activated flight plans submitted to NM) 670
FLT_DEP_REG_1 Network Manager Regulated departures Activated Regulated Traffic 155
FLT_DEP_OUT_EARLY_1 Network Manager Regulated departures (early) Regulated departures before the slot tolerance window (Early Take-Off Traffic) 7
FLT_DEP_IN_1 Network Manager Regulated departures (within departure window) Regulated departures within the slot tolerance window [-5 minutes, +10 minutes] 140
FLT_DEP_OUT_LATE_1 Network Manager Regulated departures (late) Regulated departures after the slot tolerance window (Late Take-Off Traffic) 8