ASDE-X

ASDE-X

Airport Surface Detection Equipment, Model X, or ASDE-X, is a runway-safety tool that enables air traffic controllers to detect potential runway conflicts by providing detailed coverage of movement on runways and taxiways. By collecting data from a variety of sources, ASDE-X is able to track vehicles and aircraft on airport surfaces and obtain identification information from aircraft transponders.

The data that ASDE-X uses comes from a surface-movement radar located on the air traffic control tower or remote tower, multilateration sensors, ADS-B (Automatic Dependent Surveillance-Broadcast) sensors, terminal radars, the terminal automation system, and from aircraft transponders. By fusing the data from these sources, ASDE-X is able to determine the position and identification of aircraft and vehicles on the airport surfaces, as well as of aircraft flying within 5 miles (8 km) of the airport (selectively up to 60 nmi).

Controllers in the tower see this information presented as a color display of aircraft and vehicle positions overlaid on a map of the airport's runways/taxiways and approach corridors. The system essentially creates a continuously updated map of all airport-surface operations that controllers can use to spot potential collisions.

Consisting largely of commercial off-the-shelf products, ASDE-X was designed as a solution for the smaller of the top-tier airports, and is especially helpful to controllers at night or in bad weather when visibility is poor. The Federal Aviation Administration has also begun the process of deployment of visual and audio alarms, known as Safety Logic, that will assist ASDE-X by alerting controllers to possible collisions or runway incursions.

Pilots normally select their transponders to on just prior to take off and will turn it to standby or off after landing. When ASDE-X is available at an airport, that fact will be included in the recorded ATIS (Automated Terminal Information Service) information to indicate to the pilot to leave his transponder on while taxiing on the ground.

The first ASDE-X was activated for operational use and testing at General Mitchell International Airport in Milwaukee, Wisconsin, in June 2003, and declared ready for national deployment in October 2003.

Airports with ASDE-X installed as of April 2008:

  • Bradley International Airport, Hartford, CT
  • Chicago O’Hare International Airport, Chicago, IL
  • William P. Hobby Airport, Houston, TX
  • Hartsfield-Jackson Atlanta International Airport, Atlanta, GA
  • Charlotte Douglas International Airport, Charlotte, NC
  • Orlando International Airport, Orlando, FL
  • Lambert-St. Louis International Airport, St. Louis, MO
  • General Mitchell International Airport, Milwaukee, WI
  • Theodore Francis Green State Airport, Providence, RI
  • Louisville International Airport-Standiford Field, Louisville, KY
  • Seattle-Tacoma International Airport, Seattle, WA
  • Washington Dulles International Airport (Chantilly, VA)

Airports slated to get ASDE-X by 2011:

  • Baltimore-Washington International Thurgood Marshall Airport (Baltimore, MD)
  • Boston Logan International Airport (Boston, MA)
  • Chicago Midway Airport (Chicago, IL)
  • Dallas-Ft. Worth International Airport (Dallas, TX)
  • Denver International Airport (Denver, CO)
  • Detroit Metro Wayne County Airport (Detroit, MI)
  • Ft. Lauderdale/Hollywood Airport (Ft. Lauderdale, FL)
  • George Bush Intercontinental Airport (Houston, TX)
  • Honolulu International-Hickam Air Force Base Airport (Honolulu, HI)
  • John F. Kennedy International Airport (New York, NY)
  • John Wayne-Orange County Airport (Santa Ana, CA)
  • LaGuardia Airport, (New York, NY)
  • Las Vegas McCarran International Airport (Las Vegas, NV)
  • Los Angeles International Airport (Los Angeles, CA)
  • Memphis International Airport (Memphis, TN)
  • Miami International Airport (Miami, FL)
  • Minneapolis St. Paul International Airport (Minneapolis, MN)
  • Newark International Airport (Newark, NJ)
  • Philadelphia International Airport (Philadelphia, PA)
  • Phoenix Sky Harbor International Airport (Phoenix, AZ)
  • Ronald Reagan Washington National Airport (Arlington, VA)
  • San Diego International Airport (San Diego, CA)
  • Salt Lake City International Airport (Salt Lake City, UT)
  • Seattle-Tacoma International Airport (Seattle, WA)
  • Allama International Airport Lahore Pakistan

    ee also

    * Air traffic control

    External links

    * [http://www.faa.gov/news/fact_sheets/news_story.cfm?newsId=6296 ASDE-X Fact Sheet] by the Federal Aviation Administration, dated March 2, 2007.
    * [https://employees.faa.gov/org/linebusiness/ato/news/field/story/index.cfm?newsId=54036 Electronic Eyes Improve Runway Safety] by the Federal Aviation Administration's Air Traffic Organization (FAA ATO), dated Nov. 16, 2007.
    * " [http://www.washingtonpost.com/ac2/wp-dyn?pagename=article&contentId=A44417-2003Oct30&notFound=true FAA Deploys System To Prevent Airport Runway Collisions] ", from the "Washington Post"
    * [http://www.aviationnews.net/?do=headline&news_ID=153391 ASDE-X In Use At Washington Dulles] from AviationNews.net, dated April 8, 2008.
    *ASDE-X: Coming To An Airport Near You To Squawk Or Not To Squawk, That Is The Question from National Business Aviation Association March 28, 2004 [http://web.nbaa.org/public/ops/airspace/asde-x.php]


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