Departure Tolerance Window

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Link Semantic Value
Term Departure Tolerance Window
Status


Mandatory for


Contexts


Categories
Synonyms


Related entries

Estimated Take-Off Time (ETOT)

Slot Tolerance Window (STW)

Broader term


Narrower term


Abbreviation

DTW

Definition

Time window around the ETOT in which a flight should be taking off. By default 15 minutes before and 15 minutes after ETOT. This value can be updated in ETFMS.

Definition Source

EUROCONTROL, CFMU Glossary 2011

Note

ETFMS uses a Slot Tolerance Window (STW) for regulated flights and a Departure Tolerance Window (DTW) for non regulated flights. These windows are used for the production of statistics and for the processing of DPI messages.

Note Source

EUROCONTROL (2011) CFMU, DPI Implementation Guide