From Wikipedia, the free encyclopedia
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).
See also
[
edit
]
