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ATC REQUESTS- Used to prefix an ATC request
when it is relayed to an aircraft by other than an air
traffic controller.
ATCAA-
(See ATC ASSIGNED AIRSPACE.)
ATCRBS-
(See RADAR.)
ATCSCC-
(See AIR TRAFFIC CONTROL SYSTEM
COMMAND CENTER.)
ATCT-
(See TOWER.)
ATD-
(See ALONG-TRACK DISTANCE.)
ATIS-
(See AUTOMATIC TERMINAL INFORMATION
SERVICE.)
ATIS [ICAO]-
(See ICAO Term AUTOMATIC TERMINAL
INFORMATION SERVICE.)
ATS ROUTE [ICAO]- A specified route designed for
channelling the flow of traffic as necessary for the
provision of air traffic services.
Note:The term “ATS Route” is used to mean variously,
airway, advisory route, controlled or
uncontrolled route, arrival or departure, etc.
AUTOLAND APPROACH- An autoland approach
is a precision instrument approach to touchdown and,
in some cases, through the landing rollout. An
autoland approach is performed by the aircraft
autopilot which is receiving position information
and/or steering commands from onboard navigation
equipment.
Note:Autoland and coupled approaches are flown
in VFR and IFR. It is common for carriers to require
their crews to fly coupled approaches and autoland
approaches (if certified) when the weather conditions
are less than approximately 4,000 RVR.
(See COUPLED APPROACH.)
AUTOMATED INFORMATION TRANSFER- A
precoordinated process, specifically defined in
facility directives, during which a transfer of altitude
control and/or radar identification is accomplished
without verbal coordination between controllers
using information communicated in a full data block.
AUTOMATED MUTUAL‐ASSISTANCE VESSEL
RESCUE SYSTEM- A facility which can deliver, in
a matter of minutes, a surface picture (SURPIC) of
vessels in the area of a potential or actual search and
rescue incident, including their predicted positions
and their characteristics.
(See FAAO JO 7110.65, Para 10-6-4, INFLIGHT
CONTINGENCIES.)
AUTOMATED PROBLEM DETECTION (APD)-
An Automation Processing capability that compares
trajectories in order to predict conflicts.
Pilot/Controller Glossary 7/31/08
2/14/08 Pilot/Controller Glossary
PCG A-15
AUTOMATED PROBLEM DETECTION
BOUNDARY (APB)- The adapted distance beyond
a facilities boundary defining the airspace within
which URET performs conflict detection.
(See USER REQUEST EVALUATION TOOL.)
AUTOMATED PROBLEM DETECTION INHIBITED
AREA (APDIA)- Airspace surrounding a
terminal area within which APD is inhibited for all
flights within that airspace.
AUTOMATED RADAR TERMINAL SYSTEMS
(ARTS)- A generic term for several tracking systems
included in the Terminal Automation Systems (TAS).
ARTS plus a suffix roman numeral denotes a major
modification to that system.
a. ARTS IIIA. The Radar Tracking and Beacon
Tracking Level (RT&BTL) of the modular,
programmable automated radar terminal system.
ARTS IIIA detects, tracks, and predicts primary as
well as secondary radar‐derived aircraft targets. This
more sophisticated computer‐driven system upgrades
the existing ARTS III system by providing
improved tracking, continuous data recording, and
fail‐soft capabilities.
b. Common ARTS. Includes ARTS IIE, ARTS
IIIE; and ARTS IIIE with ACD (see DTAS) which
combines functionalities of the previous ARTS
systems.
c. Programmable Indicator Data Processor
(PIDP). The PIDP is a modification to the
AN/TPX-42 interrogator system currently installed
in fixed RAPCONs. The PIDP detects, tracks, and
predicts secondary radar aircraft targets. These are
displayed by means of computer-generated symbols
and alphanumeric characters depicting flight identification,
aircraft altitude, ground speed, and flight plan
data. Although primary radar targets are not tracked,
they are displayed coincident with the secondary
radar targets as well as with the other symbols and
alphanumerics. The system has the capability of
interfacing with ARTCCs.
AUTOMATED WEATHER SYSTEM- Any of the
automated weather sensor platforms that collect
weather data at airports and disseminate the weather
information via radio and/or landline. The systems
currently consist of the Automated Surface Observing
System (ASOS), Automated Weather Sensor
System (AWSS) and Automated Weather Observation
System (AWOS).
AUTOMATED UNICOM- Provides completely
automated weather, radio check capability and airport
advisory information on an Automated UNICOM
system. These systems offer a variety of features,
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