Controlled Airspace

UTA – Upper Control Area

CTA – Control Area = controlled airspace extending upwards from a specified limit above the earth

TMA – Terminal Area = normally established at the confluence of ATS routes in vicinity of one or more major aerodromes.

CTR – Control Zone = controlled airspace extending upwards from surface to a specified upper limit.

ATZ – Aerodrome Traffic Zone = an airspace of specified dimensions established around an aerodrome for protection of aerodrome traffic

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