AIM DECODED

4-5-5. Airport Surface Detection Equipment (ASDE-X)/Airport Surface Surveillance Capability (ASSC)

AIM Text

  1. ASDE-X/ASSC is a multi-sensor surface surveillance system the FAA has acquired for airports in the United States. This system provides high resolution, short-range, clutter free surveillance information about aircraft and vehicles, both moving and fixed, located on or near the surface of the airport's runways and taxiways under all weather and visibility conditions. The system consists of:
    1. A Primary Radar System. ASDE-X/ASSC system coverage includes the airport surface and the airspace up to 200 feet above the surface. Typically located on the control tower or other strategic location on the airport, the Primary Radar antenna is able to detect and display aircraft that are not equipped with or have malfunctioning transponders or ADS-B.
    2. Interfaces. ASDE-X/ASSC contains an automation interface for flight identification via all automation platforms and interfaces with the terminal radar for position information.
    3. Automation. A Multi-sensor Data Processor (MSDP) combines all sensor reports into a single target which is displayed to the air traffic controller.
    4. Air Traffic Control Tower Display. A high resolution, color monitor in the control tower cab provides controllers with a seamless picture of airport operations on the airport surface.
  2. The combination of data collected from the multiple sensors ensures that the most accurate information about aircraft location is received in the tower, thereby increasing surface safety and efficiency.
  3. The following facilities are operational with ASDE-X:

    TBL 4-5-1

    BWI

    Baltimore Washington International

    BOS

    Boston Logan International

    BDL

    Bradley International

    MDW

    Chicago Midway

    ORD

    Chicago O'Hare International

    CLT

    Charlotte Douglas International

    DFW

    Dallas/Fort Worth International

    DEN

    Denver International

    DTW

    Detroit Metro Wayne County

    FLL

    Fort Lauderdale/Hollywood Intl

    MKE

    General Mitchell International

    IAH

    George Bush International

    ATL

    Hartsfield-Jackson Atlanta Intl

    HNL

    Honolulu International

    JFK

    John F. Kennedy International

    SNA

    John Wayne-Orange County

    LGA

    LaGuardia

    STL

    Lambert St. Louis International

    LAS

    Las Vegas Harry Reid International

    LAX

    Los Angeles International

    SDF

    Louisville International

    MEM

    Memphis International

    MIA

    Miami International

    MSP

    Minneapolis St. Paul International

    EWR

    Newark International

    MCO

    Orlando International

    PHL

    Philadelphia International

    PHX

    Phoenix Sky Harbor International

    DCA

    Ronald Reagan Washington National

    SAN

    San Diego International

    SLC

    Salt Lake City International

    SEA

    Seattle-Tacoma International

    PVD

    Theodore Francis Green State

    IAD

    Washington Dulles International

    HOU

    William P. Hobby International

  4. The following facilities have been projected to receive ASSC:

    TBL 4-5-2

    SFO

    San Francisco International

    CLE

    Cleveland-Hopkins International

    MCI

    Kansas City International

    CVG

    Cincinnati/Northern Kentucky Intl

    PDX

    Portland International

    MSY

    Louis Armstrong New Orleans Intl

    PIT

    Pittsburgh International

    ANC

    Ted Stevens Anchorage International

    ADW

    Joint Base Andrews AFB

Source: FAA Aeronautical Information Manual · current edition · paragraph 4-5-5.

The short answer

This AIM section is FAA advisory guidance describing Airport Surface Detection Equipment (ASDE-X) and Airport Surface Surveillance Capability (ASSC), a multi-sensor surface surveillance system. It gives controllers a high-resolution, clutter-free picture of aircraft and vehicles on or near runways and taxiways, in all weather, to improve surface safety and efficiency.

Research Notes

Common Questions

What is ASDE-X and how does it improve airport surface safety?

Per the AIM, ASDE-X/ASSC is a multi-sensor surface surveillance system providing high-resolution, short-range, clutter-free information on moving and fixed aircraft and vehicles on or near runways and taxiways under all weather and visibility conditions. A Multi-sensor Data Processor (MSDP) fuses sensor reports into a single target shown on a color tower display, increasing surface safety and efficiency.

How high above the airport surface does ASDE-X coverage extend?

The AIM states ASDE-X/ASSC coverage includes the airport surface and the airspace up to 200 feet above the surface. The primary radar antenna, typically located on the control tower or another strategic airport location, can detect and display aircraft that are not equipped with, or that have malfunctioning, transponders or ADS-B.

Is my home airport equipped with ASDE-X or ASSC?

The AIM lists the operational ASDE-X facilities (TBL 4-5-1), including ATL, ORD, JFK, LAX, DFW, DEN, LAS, MIA, EWR, PHX, SEA and others. Airports projected to receive ASSC (TBL 4-5-2) include SFO, CLE, MCI, CVG, PDX, MSY, PIT, ANC and Joint Base Andrews (ADW). Check the current AIM table for the latest site list.