6 Terms
Home > Industry/Domain > Aviation > Air traffic control
Air traffic control
An in-airport service that facilitates the safe and orderly movement of aircrafts within and between airports, achieved by interpreting data from radar and weather devices, and by maintaining contact with pilots.
Industry: Aviation
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Air traffic control
Resolution advisory (RA)
Aviation; Air traffic control
An advisory issued by airborne collision avoidance system (ACAS)/traffic alert and collision avoidance system (TCAS) to alert pilots to potential conflicting air traffic and provide them with a ...
Outer marker (OM)
Aviation; Air traffic control
An LF or VHF facility installed at the site of the outer marker of an instrument landing system (ILS).
Traffic advisory (TA)
Aviation; Air traffic control
An advisory issued by airborne collision avoidance system (ACAS)/traffic alert and collision avoidance system (TCAS) to alert pilots to other air traffic that may be in such proximity to the position ...
Radar advisory
Aviation; Air traffic control
The provision of advice and information based on radar observations.
Non-directional beacon (NDB)
Aviation; Air traffic control
An LF/MF or UHF radio beacon transmitting non-directional signals whereby the pilot of an aircraft equipped with direction-finding equipment can determine his or her bearing to or from the radio ...
Touchdown zone lighting (TDZL)
Aviation; Air traffic control
Variable-intensity white lighting in the touchdown zone consisting of bars of three inset lights per bar situated on either side of the runway centreline at 100-ft intervals, commencing 100 ft from ...
Receiver only
Aviation; Air traffic control
The capability to receive radio communications only, owing to the absence or failure of the transmitter.
