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AIM

10/12/17

4

−5−8

Surveillance Systems

c.

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 McCarran 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

d.

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

4

−5−6. Traffic Information Service (TIS)

a. Introduction.

The Traffic Information Service (TIS) provides
information to the cockpit via data link, that is similar
to VFR radar traffic advisories normally received
over voice radio. Among the first FAA

−provided data

services, TIS is intended to improve the safety and
efficiency of “see and avoid” flight through an
automatic display that informs the pilot of nearby
traffic and potential conflict situations. This traffic
display is intended to assist the pilot in visual
acquisition of these aircraft. TIS employs an
enhanced capability of the terminal Mode S radar
system, which contains the surveillance data, as well
as the data link required to “uplink” this information
to suitably

−equipped aircraft (known as a TIS

“client”). TIS provides estimated position, altitude,
altitude trend, and ground track information for up to
8 intruder aircraft within 7 NM horizontally,
+3,500 and 

−3,000 feet vertically of the client aircraft

(see FIG 4

−5−4, TIS Proximity Coverage Volume).

The range of a target reported at a distance greater
than 7 NM only indicates that this target will be a
threat within 34 seconds and does not display an
precise distance. TIS will alert the pilot to aircraft
(under surveillance of the Mode S radar) that are
estimated to be within 34 seconds of potential
collision, regardless of distance of altitude. TIS
surveillance data is derived from the same radar used
by ATC; this data is uplinked to the client aircraft on
each radar scan (nominally every 5 seconds).