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• Calculated Take-off Time Slot Machine
• Calculated Take-off Time Slots

Assigned ATFM slot (Calculated Take-Off Time Compliance).% of flights subject to flow restrictions. The KPI is typically computed for individual airports, or clusters of airports (selection/grouping based on size and/or geography). For each departing IFR flight subject to an ATFM regulation: - Calculated Take-Off Time (CTOT). If you are hoping to use FMLA leave, one question you may have when considering eligibility is “ Does the time I take off for vacation, sick leave, or PTO, count toward the 1250 hours needed to qualify for FMLA leave? I have a scenario (SQL 2008) where I need to find the occupied timeframes /non-gaps from the below table. I have created this dummy table. CREATE TABLE Job ( JobID INT NOT NULL, Worke.

Taxi-out KPI02 Taxi-out additional time Actual taxi-out time compared to an unimpeded taxi-out time avg. Per airport or per cluster of airports Take-off (OFF) KPI03 ATFM slot adherence Percentage of flights taking off within their assigned ATFM slot (Calculated Take-Off Time Compliance) avg. Per airport or per cluster of airports. Normally, the aircraft should take-off within 15 minutes of the time stated in its flight plan but, if a slot is necessary, then this window is shrunk – to within five minutes before the CTOT or within ten minutes after the CTOT. If the aircraft can’t achieve this take-off time, then it has to reapply for a slot.

Metadata update

Statistical presentation

Data description

ATFM departure slots are allocated centrally by the European Network Manager upon the requestof the local Flow Management Position (FMP), when an imbalance between demand and capacity isforeseen 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 thatflights 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 predictionsat 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.

ATFM slot adherence monitoring is required by the Regulation (EU) No 255 / 2010.Under Article 11 of this regulation, the ATS units are required to provide the informationregarding non-compliance to slot adherence for these airports where non-adherence equalsor exceeds 20% of the regulated departures, as well as their action plans to mitigate sucha non-compliance.

In application to Regulation (EU) No 255/2010, the Network Manager monitors ATFM slot adherenceon a monthly basis.

The Performance Regulation (390 / 2013), Annex I Section 2 para 3.2(a) also requiresATFM slot adherence to be monitored at local level, i.e. at national level with a breakdownat airport level.

Classification system

ATFM slot adherence is classified per Member State, with a breakdown for each airport subject to EU IR390.

Sector coverage

The measures pertain to the Air Transport and Air Traffic Management Sectorof the economy.

Statistical concepts and definitions

ATFM slot adherence is defined as the percentage of departures inside anATFM slot tolerance window of [-5 minutes, +10 minutes].

Statistical unit

The statistical unit is the airport. Airport level data is also aggregated to States.

Statistical population

The statistical population is the set of ‘the 2nd reference period (RP2) airports’subject [EU IR390 / 2013]]law, within the Single European Sky Area.

Reference area

The reference area is the Single European Sky Area of RP2 (2015-2019).

Time coverage

The Network manager has monitored slot adherence to ATFM since 2011,but in the scope of the Performance Scheme, 2015 is the first year for which data is presented.

Base period

Not applicable.

Unit of Measure

The ATC pre-departure delay is measured in minutes per outbound IFR flight [min/departure].

Reference period

As fixed by the Performance Regulation (390 / 2013), the second reference period (RP2)for the performance scheme shall cover the calendar years 2015 to 2019 inclusive.

Institutional Mandate

Legal acts and agreements are established in theCommission Implementing Regulation (EU) No 390 / 2013.

Confidentiality

The information is disseminated in accordance with Article 21 of Commission Implementing Regulation (EU) No 390 / 2013.

Release policy

Release calendar

Calculated Take-off Time Slot Machine

ATFM slot adherence is released monthly with yearly aggregates.

Release calendar access

Not applicable.

User access

Information is disseminated to the general public via the SES Data Portal.

Frequency of dissemination

Data is published monthly with the annual performance aggregate being available in Januaryof the following year.

Dissemination format

Information is disseminated to the general public via the SES Data Portal.

Accessibility of documentation

Documentation on methodology

As per the pertaining regulations (see Institutional Mandate).For technical questions not addressed in Statistical processingplease contact: PRU-Support@eurocontrol.int.Additional definitions of the terms used in the frame of the this KPIare available in the Metadata page.

Quality documentation

There is no specific documentation on procedures applied for quality managementand quality assessment.

Quality Management

As per Performance Regulation (390 / 2013), Article 21 (3),

The data providers shall takethe necessary measures to ensure the quality, validation and timely transmission of the data,including providing evidence of their quality checks and validation processes, explanationsin response to specific requests from the Commission regarding the quality of the data and,where necessary, action plans to improve data quality.The data shall be provided free of charge, in electronic form where applicable,using the format specified by the Commission.

Quality assurance

Calculated Take-off Time Slots

Data validation is performed by the Network manager in the theRegulation (EU) No 255 / 2010.

Quality assessment

Quality assessment is under the responsibility of the Network managerin the context of the Regulation (EU) No 255 / 2010.

Completeness

The data is collected for all the RP2-airports.

Relevance

The information is published for performance monitoring purposes in accordancewith Article 3 of the Performance Regulation (EU) No 390 / 2013.

Accuracy and reliability

Overall accuracy

The information is published for performance monitoring purposes in accordance withArticle 3 of the Performance Regulation (EU) No 390 / 2013.

Sampling error

There is no sampling and therefore no sampling error.

Timeliness and punctuality

Timeliness

The information is published each month by the Network Manager in their“NM Monthly Adherence to ATFCM Slots” bulletin.

Punctuality

The internal databases are updated daily. The statistical processingis performed once per month.

Comparability

Comparability — geographical

The data is collected centrally by the Network Manager, as required by theRegulation (EU) No 255 / 2010.In the scope of the Performance Regulation (390 / 2013), the data is transmitted tothe EUROCONTROL Performance Review Unit and computed consistently for all the EU IR390 airports.

Comparability over time

Comparisons over time are valid.

Coherence

Coherence — cross domain

Not available.

Coherence — internal

Data is fully coherent from an internal perspective.

Cost and burden

Not available.

Data revision

No data revision foreseen.

Statistical processing

Source data

The input variables used for the calculation are detailed in theStatistical concepts and definitions section.

Frequency of data collection

The data is collected and transmitted for statistical processing on a monthly basis.

Data collection

The data is collected by the Network Manager for the purpose ofRegulation (EU) No 255 / 2010 and transmitted to the EUROCONTROL Performance Review Unitfor the implementation of the Performance Regulation (390 / 2013).

Data validation

The data is validation as described in the Quality Management section.

Data compilation

The departure time of a regulated flight is inside the slot tolerance window when itsActual Take-off time (ATOT) is in a window starting 5 minutes before and ending 10 minutes afterits Calculated Take-Off time (CTOT), i.e.

$$CTOT – 5 min <= ATOT <= CTOT + 10 min $$

It should be acknowledged that the exceptional extension of the standardATFM slot tolerance window [-5 minutes, +10 minutes], as described in the ATFCM User Manualunder 4.6.4 “Adverse Operating Conditions at Aerodromes”, is not taken into account in thecalculation of ATFM slot adherence.These exceptions represent in most cases less than 2% of regulated flights.

The adherence to ATFM slots determines the percentage of regulated flights with an ATOTinside the slot tolerance window.

The Actual Take-Off time of a flight can be determined when the NM receivedan ATC activation message from its departure airport.Therefore, the assessment is made only for those flights for which an activation messageat the origin airport (FSA message) or a Departure message (DEP) is available.

Adjustment

Corrections may be made when issues are discovered as described in theQuality Assessment section of this document.

Comment

No comments.

This data is published by the Performance Review Body (PRB) of the Single European Sky. Every effort has been made to ensure that the information and analysis contained on this website are as accurate and complete as possible. Despite these precautions, should you find any errors or inconsistencies we would be grateful if you could please bring them to the Performance Review Unit’s attention.The information may be copied in whole or in part providing that the copyright notice and disclaimer are included. The information may not be modified without prior written permission from the PRB. The views expressed herein do not necessarily reflect the official views or policy of EUROCONTROL or of the European Commission, which make no warranty, either implied or express, for the information contained on this website, neither do they assume any legal liability or responsibility for the accuracy, completeness or usefulness of this information. The PRB reserves the right to change or amend the information provided at any time and without prior notice.