air traffic control

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air traffic control,

the system by which airplanes are safely routed into and out of major airports. Air traffic control in the United States is centered in a number of regional control centers that route airplanes along established airways to airport traffic control centers. There Instrument Landing Systems and Microwave Landing Systems enable planes to land safely in almost any weather conditions. Air traffic controllers, who are responsible for maintaining safe distances between planes, are employees of the U.S. Dept. of Transportation. Air traffic control is made possible by special transponders installed in every commercial and many private aircraft, which automatically transmit information on a plane's altitude and speed to the ground controller. The distortion that often affects voice transmissions can be eliminated by the use of cockpit datalinks; collision avoidance systems provide further safety margins. Knowing the course, speed, and altitude of every plane in the sector, the controller can contact each in turn to give landing or course instructions. Modern air traffic control has contributed to making air travel far safer than highway travel, and on a passenger-mile basis safer even than rail travel.

air traffic control (ATC)

A service provided by the appropriate authority to promote the safe, orderly, and expeditious flow of traffic.
References in periodicals archive ?
The solution lies with the 21st Century AIRR Act, a bipartisan proposal that will create a federally chartered nonprofit to oversee America's air traffic control system.
The increasing efforts to upgrade airports and incorporate smart city infrastructure also bode well for the global air traffic control equipment market.
Our stunning new Air Traffic Control Tower, which is an integral part of this development programme, will be one of the most sophisticated, state-of-the-art facilities in the world, thanks to the systems from Thales," stated Ahmed Al Haddabi, Adac's senior vice president of Airport Operations.
However, in the current economic climate the aviation market simply can't afford wasteful air traffic control systems and industry leaders need to ensure optimum levels of air traffic control performance.
The Tokyo Air Traffic Control Center is located in Tokorozawa, Saitama Prefecture, about 30 kilometers northwest of central Tokyo.
Jason Strong is deputy engineering manager for surveillance at NATS En Route, the firm that provides air traffic control services to planes flying in the UK.
enables Eizo to enter the air traffic control field.
Swiss air traffic control company Skyguide has agreed the compensation it will pay to relatives of 30 people who died in a 2002 mid-air plane collision close to the Swiss-German border, a lawyer for the firm said on Monday.
Just three weeks earlier, more than 500 flights were delayed, diverted or canceled when a backup power system failed at the Palmdale air traffic control center that directs jetliners flying in and out of Southern California.
Peter DeFazio said it best: "We have the most efficient air traffic control system, the safest air traffic control system in the world.
To accelerate the modernization and improve the performance of the air traffic control system, the Wendell H.
Navy's air traffic control consoles, which are used for control of rotor and fixed wing aircraft during launch/recovery and amphibious assault operations.

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