Aerodrome traffic
All traffic on the manoeuvring area of an aerodrome and all aircraft flying in the vicinity of an aerodrome.
Alternate aerodrome
An aerodrome to which an aircraft may proceed when it becomes either impossible or inadvisable to proceed to or to land at the aerodrome of intended landing. Alternate aerodromes include the following:
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Certified aerodrome
An aerodrome whose operator has been granted an aerodrome certificate.
Controlled aerodrome
An aerodrome at which air traffic control service is provided to aerodrome traffic.
Destination alternate
An alternate aerodrome to which an aircraft may proceed should it become either impossible or inadvisable to land at the aerodrome of intended landing.
Departure point
Aerodrome or point in space from which departure takes place.
En-route alternate
An aerodrome at which an aircraft would be able to land after experiencing an abnormal or emergency condition while en-route.
Heliport
An aerodrome or a defined area on a structure intended to be used wholly or in part for the arrival, departure and surface movement of helicopters.