6 Terms
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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
glide path (GP)
Aviation; Air traffic control
A descent profile determined for vertical guidance during a final approach segment.
level
Aviation; Air traffic control
The vertical position of an aircraft in flight and variously height, altitude or flight level (FL).
line up
Aviation; Air traffic control
ICAO and Canada: Expression used in radiocommunications to instruct a pilot to enter the runway intended for takeoff. Note: Used in conjunction with a runway.
flight level (FL)
Aviation; Air traffic control
The altitude expressed in hundreds of feet indicated on an altimeter set to 29.92 in. of mercury or 1013.2 mb.
decision altitude
Aviation; Air traffic control
A specified altitude in the precision approach or approach with vertical guidance at which a missed approach must be initiated if the required visual reference to continue the approach to land has ...
high intensity runway operations (HIRO)
Aviation; Air traffic control
Operations, used at very busy airports, that consist of optimizing separation of aircraft in final approach in order to minimize runway occupancy time (ROT) for both arriving and departing aircraft ...
geographic area safe altitude (GASA)
Aviation; Air traffic control
Canada: The altitude at which an aircraft can fly and maintain a 2000-ft clearance over known obstacles or terrain within a delineated geographic area, as depicted on en route charts. Note: This ...
