Air Traffic Control Service
Air traffic control service is a service provided for the purposes of preventing collisions between aircraft, and between aircraft and obstructions on the manoeuvring area, and expediting and maintaining an orderly flow of air traffic. In Canada, ATC service is provided exclusively by NAV CANADA.
Where ATC Service is Provided
- In controlled airspace (Class A, B, C, D)
- At controlled airports — within the control zone and circuit area
- En route along designated airways and in terminal control areas
Types of ATC Facilities
- Area Control Centre (ACC): En route IFR control
- Terminal Control Unit (TCU): Arrival and departure sequencing at major airports
- Aerodrome Control Tower: Ground and circuit operations at controlled airports
Related Terms
See also: ATC Unit, Controlled Airspace, Area Control Centre (ACC).