Air Route Traffic Control Center

Air Route Traffic Control Center
Public domain · source
Name	Air Route Traffic Control Center
Caption	Radar room at an Air Route Traffic Control Center
Type	Federal aviation facility
Country	United States

Air Route Traffic Control Center Air Route Traffic Control Centers are high-altitude aviation facilities that manage en route air traffic across large sections of airspace in the United States. They coordinate flows between terminal control areas and international flight information regions, integrating with national and international systems such as Federal Aviation Administration operations, International Civil Aviation Organization standards, and military North American Aerospace Defense Command procedures. These centers interface with major hubs like John F. Kennedy International Airport, Los Angeles International Airport, Chicago O'Hare International Airport, and neighboring centers to maintain separation and optimize traffic flow.

Overview

Air Route Traffic Control Centers serve as primary en route controllers for high-altitude operations over regions that include major corridors such as the North Atlantic Tracks, Pacific Organized Track System, and domestic routes connecting New York City, Los Angeles, Dallas–Fort Worth, Atlanta, Denver, and Seattle. They operate within frameworks established by the Federal Aviation Administration and coordinate with entities like Airlines for America, Air Traffic Control Association, Port Authority of New York and New Jersey, and military commands including United States Air Force regional commands. Centers manage traffic using sectorization schemes similar to those used by Eurocontrol and exchange data with Nav Canada and AeroNav services.

History and Development

The development of en route control evolved from early Air Mail Service routing and the growth of airlines such as Pan American World Airways, American Airlines, and United Airlines. Post-World War II expansion under the Civil Aeronautics Board and later the Federal Aviation Act of 1958 led to centralized en route centers influenced by technologies from MIT Lincoln Laboratory and innovations tied to programs like En Route Automation Modernization and Advanced Automation System. Historical milestones include the creation of the center network linked to air traffic expansions in the Jet Age, responses to events involving Tenerife airport disaster, and modernization after incidents prompting changes from bodies such as the National Transportation Safety Board.

Organization and Operations

Each center is organized into areas, sectors, and positions staffed by certified controllers from the Federal Aviation Administration workforce represented by unions like the National Air Traffic Controllers Association. Operational coordination relies on protocols established in manuals from International Civil Aviation Organization and national directives such as standards set by the Department of Transportation. Centers liaise with airport towers at Hartsfield–Jackson Atlanta International Airport and approach facilities at London Heathrow Airport for international handoffs, and they manage flows influenced by airline operations centers for carriers like Delta Air Lines, Southwest Airlines, and British Airways.

Technology and Equipment

Centers employ radar systems, flight data processing units, and automation suites derived from programs like En Route Automation Modernization and collaborate with contractors such as Lockheed Martin, Raytheon Technologies, and Northrop Grumman. Equipment includes long-range primary and secondary radar arrays, Automatic Dependent Surveillance–Broadcast receivers linked to NextGen initiatives, and voice communication systems integrated with networks used by Air Traffic Control Systems Command Center. Software interoperability involves standards from ICAO and protocols shared with systems like Eurocontrol's Central Flow Management Unit.

Airspace and Procedures

Airspace managed by centers follows classifications and procedures codified in documents from Federal Aviation Administration and implementation of Instrument Flight Rules and Visual Flight Rules transitions. Controllers use published airway structures including jet routes and area navigation (RNAV) fixes tied to navigation aids like VOR stations and GPS satellites maintained by agencies including the Department of Defense and National Aeronautics and Space Administration. Flow control measures, including ground delay programs and reroutes, are coordinated with traffic flow managers and stakeholders such as airlines, airport authorities, and regional centers to manage constraints from weather events tracked by National Weather Service and special operations like Military Training Routes.

Incidents and Safety

Centers have been central to investigations by the National Transportation Safety Board into conflicts and loss-of-separation events involving carriers like TWA, American Airlines, and cargo operators. Safety enhancements have followed incidents prompting procedural changes, automation updates, and coordination improvements involving Federal Aviation Administration directives and recommendations from industry groups like International Air Transport Association. Interagency drills and responses include coordination with Federal Emergency Management Agency, military air defense through NORAD, and international notifications via ICAO mechanisms.

Training and Staffing

Controller qualification programs are administered by the Federal Aviation Administration and training providers including the FAA Academy and contracted facilities. Curriculum covers radar separation, automation use, phraseology per ICAO standards, and emergency procedures influenced by historical cases involving entities like National Transportation Safety Board and major airline operations centers. Staffing models balance experienced controllers and trainees, with certification milestones and recurrent training overseen by FAA management and industry bodies like the Air Traffic Control Association.

Category:Air traffic control