To ensure the safe and efficient flow of air traffic.

To provide weather updates to pilots.

To maintain communication with ground personnel.

To manage the airspace around an airport.

To allocate airspace to different users.

To regulate the flow of air traffic.

To ensure the safety of air navigation.

To protect the environment from aircraft noise.

To manage the flow of air traffic in congested areas.

To provide weather updates to pilots.

To maintain communication with ground personnel.

To manage the airspace around an airport.

Air Traffic Controllers manage air traffic in the air, while Flight Dispatchers manage air traffic on the ground.

Air Traffic Controllers manage air traffic in congested areas, while Flight Dispatchers manage air traffic in non-congested areas.

Air Traffic Controllers manage air traffic in visual conditions, while Flight Dispatchers manage air traffic in instrument conditions.

Air Traffic Controllers manage air traffic for commercial airlines, while Flight Dispatchers manage air traffic for private pilots.

To provide information about the intended route of an aircraft.

To provide information about the aircraft's weight and balance.

To provide information about the aircraft's fuel and endurance.

To provide information about the aircraft's crew and passengers.

To manage the flow of air traffic.

To provide weather updates to pilots.

To maintain communication with ground personnel.

To manage the airspace around an airport.

Airport Control Towers manage air traffic in the vicinity of an airport, while Area Control Centers manage air traffic in a larger area.

Airport Control Towers manage air traffic in visual conditions, while Area Control Centers manage air traffic in instrument conditions.

Airport Control Towers manage air traffic for commercial airlines, while Area Control Centers manage air traffic for private pilots.

Airport Control Towers manage air traffic in congested areas, while Area Control Centers manage air traffic in non-congested areas.

To provide a safe and efficient route for aircraft to depart from an airport.

To provide a safe and efficient route for aircraft to arrive at an airport.

To provide a safe and efficient route for aircraft to cross an airway.

To provide a safe and efficient route for aircraft to avoid bad weather.

To provide a safe and efficient route for aircraft to depart from an airport.

To provide a safe and efficient route for aircraft to arrive at an airport.

To provide a safe and efficient route for aircraft to cross an airway.

To provide a safe and efficient route for aircraft to avoid bad weather.

To provide air traffic control services to aircraft.

To provide weather information to aircraft.

To provide navigation information to aircraft.

To provide search and rescue services to aircraft.

To detect and track aircraft.

To provide weather information to aircraft.

To provide navigation information to aircraft.

To provide search and rescue services to aircraft.

To provide the aircraft's identification and altitude to air traffic control.

To provide the aircraft's identification and position to air traffic control.

To provide the aircraft's identification and speed to air traffic control.

To provide the aircraft's identification and heading to air traffic control.

To manage the flow of air traffic.

To provide weather information to aircraft.

To provide navigation information to aircraft.

To provide search and rescue services to aircraft.

To provide air traffic control services to aircraft.

To provide weather information to aircraft.

To provide navigation information to aircraft.

To provide search and rescue services to aircraft.

To manage the aircraft's flight plan.

To control the aircraft's autopilot.

To display navigation information to the pilots.

To provide weather information to the pilots.