• Inform pilots about nearby planes or potentially hazardous conditions, such as weather, speed and direction of wind, or visibility problems.
• Issue landing and take-off authorizations or instructions.
• Transfer control of departing flights to traffic control centers and accept control of arriving flights.
• Provide flight path changes or directions to emergency landing fields for pilots traveling in bad weather or in emergency situations.
• Alert airport emergency services in cases of emergency or when aircraft are experiencing difficulties.
• Monitor or direct the movement of aircraft within an assigned air space or on the ground at airports to minimize delays and maximize safety.
• Direct pilots to runways when space is available or direct them to maintain a traffic pattern until there is space for them to land.
• Monitor aircraft within a specific airspace, using radar, computer equipment, or visual references.