Air Traffic Control Service

Description

Air traffic control service is a service provided for the purpose of:

  • preventing collisions:
    • between aircraft, and
    • on the manoeuvring area between aircraft and obstructions; and
  • expediting and maintaining an orderly flow of air traffic. (ICAO Annex 11)

Air traffic control service is provided:

Clearances issued by air traffic control units provide separation:

  • between all flights in airspace Classes A and B;
  • between IFR flights in airspace Classes C, D and E;
  • between IFR flights and VFR flights in airspace Class C;
  • between IFR flights and special VFR flights;
  • between special VFR flights when so prescribed by the appropriate ATS authority,

 

Further Reading

ICAO Annex 11 Chapter 3 ICAO Doc 4444: Procedures for Air Navigation Services- Air Traffic Management (PANS-ATM)

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