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  2. Airport surveillance radar - Wikipedia

    en.wikipedia.org/wiki/Airport_surveillance_radar

    An airport surveillance radar (ASR) is a radar system used at airports to detect and display the presence and position of aircraft in the terminal area, the airspace around airports. It is the main air traffic control system for the airspace around airports. At large airports it typically controls traffic within a radius of 60 miles (96 km) of ...

  3. Automatic Dependent Surveillance–Broadcast - Wikipedia

    en.wikipedia.org/wiki/Automatic_Dependent...

    ADS-B is an airspace surveillance system which could eventually replace Secondary surveillance radar as the main surveillance method for controlling aircraft worldwide. In the United States ADS-B is an integral component of the NextGen national airspace strategy for upgrading and enhancing aviation infrastructure and operations.

  4. Next Generation Air Transportation System - Wikipedia

    en.wikipedia.org/wiki/Next_Generation_Air...

    The largest cause of National Airspace System (NAS) air traffic delays is weather, which was responsible for 75 percent of system-impacting delays of more than 15 minutes from June 2017 to May 2022. [ 148 ] [ 149 ] With more accurate and timely weather predictions, airports and airlines could prevent as many as two-thirds of weather-related ...

  5. Air traffic control - Wikipedia

    en.wikipedia.org/wiki/Air_traffic_control

    Air traffic control (ATC) is a service provided by ground-based air traffic controllers (people) who direct aircraft on the ground and through a given section of controlled airspace, and can provide advisory services to aircraft in non-controlled airspace. The primary purpose of ATC worldwide is to prevent collisions, organise and expedite the ...

  6. Air Route Surveillance Radar - Wikipedia

    en.wikipedia.org/wiki/Air_Route_Surveillance_Radar

    L band. Range. 290 miles. The Air Route Surveillance Radar is a long-range radar system. It is used by the United States Air Force and the Federal Aviation Administration to control airspace within and around the borders of the United States. The ARSR-4 is the FAA's most recent (late 1980s, early 1990s) addition to the "Long Range" series of ...

  7. North Warning System - Wikipedia

    en.wikipedia.org/wiki/North_Warning_System

    North Warning System. The North Warning System (NWS, French: Système d'alerte du nord) is a joint United States and Canadian early-warning radar system for the atmospheric air defense of North America. It provides surveillance of airspace from potential incursions or attacks from across North America's polar region.

  8. National Airspace System - Wikipedia

    en.wikipedia.org/wiki/National_Airspace_System

    National Airspace System. The National Airspace System (NAS) is the airspace, navigation facilities and airports of the United States along with their associated information, services, rules, regulations, policies, procedures, personnel and equipment. [1] It includes components shared jointly with the military.

  9. Tethered Aerostat Radar System - Wikipedia

    en.wikipedia.org/wiki/Tethered_Aerostat_Radar_System

    Tethered Aerostat Radar System in New Mexico. The first aerostats were assigned to the United States Air Force in December 1980 at Cudjoe Key, Florida. During the 1980s, the U.S. Customs Service operated a network of aerostats to help counter illegal drug trafficking. Their first site was built at High Rock, Grand Bahama in 1984.