In addition, at selected locations,įSSs provide En Route Flight Advisory Service (Flight Watch), take weather observations, issue airport advisories, and adviseĬustoms and Immigration of transborder flights. Services, assist lost aircraft and aircraft in emergency situations, relay ATC clearances, originate Notices to Airmen, broadcastĪviation weather and NAS information, receive and process IFR flight plans, and monitor NAVAIDs. Air traffic facilities which provide pilot briefing, en route communications and VFR search and rescue A tool used by Air Traffic Management Specialists to monitor air trafficįlight Service Station. EDCTs are issued as part of Traffic Management Programs, such as a Ground Delayįlight Schedule Monitor. The time issued to a flight to indicate when it can expect The height above the ground of the base of the lowest layer of clouds when over half of the sky is obscured.Įxpect Departure Clearance Time. Predefined routes used to route air traffic around areas of severe weather.Ĭeilings. Transportation, both government and industry, to exchange information for better decision making.Ĭoded Departure Routes. Cooperative effort between the various components of aviation Provide approach control services (radar or nonradar).Ĭollaborative Decision Making. The Class D airspace area regardless of flight plan or weather conditions (IFR or VFR). Authorizes aircraft to land or takeoff at the airport controlled by the tower or to transit A terminal facility that uses air/ground communications, visual signaling,Īnd other devices to provide ATC services to aircraft operating in the vicinity of an airport or on the A service operated by appropriate authority to promote the safe, orderly andĪir Traffic Control System Command CenterĪirport Traffic Control Tower. ASR provides range and azimuth information but does not provide elevation data.Ĭoverage of the ASR can extend up to 60 miles.Īir Traffic Control. Approach control radar used to detect and display an aircraft's position There are 20 ARTCCs in the continental U.S.Īirport Surveillance Radar. Services may be provided to VFR aircraft. When equipment capabilities and controller workload permit, certain advisory/assistance To aircraft operating on IFR flight plans within controlled airspace and principally during the en route A facility established to provide air traffic control service More limited than those provided by a radar approach control.Īir Route Traffic Control Center. In some instances, ARSR may enable an ARTCC to provide terminal radar services similar to but usually The ARSR enablesĬontrollers to provide radar air traffic control service when aircraft are within the ARSR coverage. To detect and display an aircraft's position while en route between terminal areas. Air Route Traffic Control Center (ARTCC) radar used primarily The number of arrivals an airport is capableĪir Route Surveillance Radar. Airport Acceptance Rate or Airport Arrival Rate.
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