The operational rollout of the Automatic Dependent Surveillance — Broadcast (ADS-B) system by the Federal Aviation Administration (FAA) is now complete, giving air traffic controllers a new tool for monitoring the skies.
The system, now operational at air traffic control facilities throughout the United States, allows more accurate tracking of airplanes and airport vehicles on runways and taxiways, to increase safety and efficiency. Especially of note is greater accuracy provided for controllers in areas with geographic hurdles, such as mountains or over water.
While now standard in airports, Terminal Radar Approach Control Facilities and en route facilities, the system is not mandated for use by airplanes themselves. Still, for those who do, their pilots are given cockpit displays of location concerning other aircraft, bad weather, and terrain, along with temporary flight restrictions.
Aircraft flying in certain, controlled airspace must also be equipped with the technology by Jan. 1, 2020. The ADS-B baseline rollout came well in advance of this and, according to the FAA, did so within budget.