Control area (aviation)

In aviation, a control area (CTA) is the volume of controlled airspace that exists in the vicinity of an airport. It has a specified lower level and a specified upper level. It usually is situated on top of a control zone and provides protection to aircraft climbing out from the airport by joining the low-level control zone to the nearest airways. In the UK they are generally class A, D or E.

Control areas are particularly useful where there are busy airports located close together. In this case a single CTA will sit over all of the individual airports' CTRs. In larger-scale cases, this is known as a terminal manoeuvring area (TMA).

Commercial aviation
Airlines	Airline codes Airline holding companies Cargo airline Charter airlines Low-cost airlines Non-scheduled airline Passenger airlines Regional airlines
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Trade groups	International ACO ATAG IATA IATAN ISTAT United States A4A RAA Europe A4E EBAA ERA Other regions AACO AAPA AFRAA RAAA
Aircrew	Pilot in command (Captain) First officer Second officer Third officer Relief crew Flight attendant Flight engineer Loadmaster Aircraft pilot Purser Dead mileage
Airliner	Travel class First class Business class Premium economy class Economy class Basic economy class Aircraft cabin Aircraft lavatory Aircraft seat map Airline meal Airline seat Buy on board Crew rest compartment In-flight entertainment Inflight smoking Galley Sickness bag
Airport	Aerodrome Airline hub Airport check-in Airport lounge Airport rail link Airport terminal Airside pass Airstair Boarding Domestic airport Gate International airport Jet bridge Low-cost carrier terminal Runway Transit hotel
Customs / Immigration	Arrival card Border control (internal) Departure card Passport Timatic Travel document Travel visa (Electronic)
Environmental effects	Hypermobility Environmental effects of aviation
Law	Air transport agreement Bermuda Agreement (UK–US, 1946–1978) Bermuda II Agreement (UK–US, 1978–2008) China-US Cross-Strait charter (China–Taiwan) Beijing Convention Cape Town Treaty Chicago Convention Convention on the Marking of Plastic Explosives European Common Aviation Area Flight permit Freedoms of the air Hague Hijacking Convention Hague Protocol ICAO Montreal Convention Freedoms of the air EU–US Open Skies Agreement Paris Convention of 1919 Rome Convention Sabotage Convention Tokyo Convention Warsaw Convention
Baggage	Bag tag Baggage allowance Baggage carousel Baggage cart Baggage reclaim Baggage handler Baggage handling system Baggage sizer Checked baggage Hand luggage Lost luggage Luggage lock
Aviation safety	Air rage Air traffic control Air traffic service Aircraft safety card Airport authority Airport crash tender Airport police Airport security Airspace class Area control center Brace position Civil aviation authority Control area Control zone Controlled airspace Evacuation slide Flight information region Flight information service Flight recorder Instrument flight rules Overwing exits Pre-flight safety demonstration Sky marshal Special use airspace Special visual flight rules Terminal control area Terminal control center Uncontrolled airspace Upper information region Visual flight rules
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Ground crew	Aircraft maintenance technician Aircraft ground handling Baggage handler Flight dispatcher
Miscellaneous	Air cargo Aviation taxation and subsidies Mile high club

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Control area (aviation)

See also