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CDM Acronyms 02-12-2008

AcronymAcronym Term DefinitionA/C Aircraft Short hand for Aircraft on Advisory and OIS.

AADC Airport Arrival Demand Chart

AAR

ABRG Adaptive Compression Bridging Control Times updated by adaptive compression bridging.

AC Adaptive Compression

AC_CAT Aircraft Category Refers to aircraft categories (jet, propeller, turbo prop).AC_RMK Aircraft Remark Refers to standard keywords representing flights remarks data.

ACARS

ACENTR Arrival Center Center responsible for the arrival airport.ACID Aircraft Identification Unique alphanumeric aircraft identifier. Also known as call sign.

ACTV Activate Message Command in ETMS

ADC

ADL Aggregate Demand List

ADPT Adaptive Compression

ADR Airport Departure Rate

ADT Actual Departure Time Actual time flight departed airport.

AADC chart displays the latest arrival demand metrics for selected airports.

Airport Acceptance Rate, Airport Arrival Rate

The published number of landings per hour that can be made at an airport based on specific conditions.

Adaptive compression is a new approach to compression to help ensure that all slots in a program are used. ETMS continuously monitors each program to see whether a slot is at risk of going unused. If so, ETMS attempts to move the slot back to a time when it can still be used. ETMS does so by selecting other flights to depart earlier, thus providing delay reduction benefits to other flights.

ARINC Communications Addressing and Reporting System

A digital data link system for transmission of small messages between aircraft and ground stations via radio or satellite.

Activates a flight or airline in the ETMS airline database, thus removing a restriction that was previously set with the INHB command.

Airport Demand Chart or Advise Customs

ADC is a web-based, graphical display of airport arrivalinformation. Also used in the flight remarks as advise customs.The ADL is the main data product that drives FSM and the ETMS Ground Delay Program Enhancements operations. ETMS generates an ADL for each element that is being monitored by FSM. The ADL is composed of data extracted from the ETMS hub site databases, which are maintained with a combination of OAG data, CDM Participant provided flight data messages, NAS messages generated from the ATC system, and issued ground delays (EDCTs).

Flag indicating a flight's control times are the result of an adaptive compression.The published number of departures per hour that can be made from an airport based on specific conditions.


ADVZY / ADZY Advisory Message

AETE Actual Estimated Time En Route Actual Estimated Time En Route

AF Flight Plan Amendment, Airway Facilities Message sent from host to ETMS to amend the flight plan data for a flight.

AFIX Arrival Fix

AFP Airspace Flow Program

AGT Actual Ground Time The difference between the ARTD and the PGTD.

AGTA Actual Gate Time of Arrival

AGTD Actual Gate Time of Departure

ALD Airline Delay The carrier imposed a delay on the flight (delay status).

ALT Altitude

AOC Airline Operations Center

AOCNet Airline Operations Center Network The network used by CDM participants.ARPT Airport Short hand for airport.

ARSR Air Route Surveillance Radar

ARTA Actual Runway Time of Arrival

An advisory is a message that is disseminated electronically by the ATCSCC or ARTCC. It contains information pertaining to the National Airspace System.

Arrival fix is located near the airport that the aircraft will fly over as part of an arrival flow.A traffic management (TM) process administered by the ATCSCC. Aircraft are assigned specific airspace arrival slots utilizing flight schedule monitor (FSM) to manage capacity and demand for a specific area of the National Airspace System (NAS). AFPs support the TM mission and mitigate the effects of en route constraints. Please see the AFP Advisory circular for more details.

Renamed to ARTA - Name changed as previous name was misleading (it is a runway time not a gate time). ARTA is the time from a NAS AZ message. If no AZ has been received, this field is blank.

The actual time the aircraft left the gate. Also the time that the aircraft actually leaves the ground. Renamed to ARTD.

Altitude listing on the TSD in hundreds of feet. Thus, 338 represents an altitude of 33,800 feet. The office where operational control of an airline is exercised. Usually a dispatch office.

Air Route Traffic Control Center (ARTCC) radar used primarily to detect and display an aircraft's position while en route between terminal areas. The ARSR enables controllers to provide radar air traffic control service when aircraft are within the ARSR coverage. In some instances, ARSR may enable an ARTCC to provide terminal radar services similar to but usually more limited than those provided by a radar approach control.

Actual arrival time from a NAS AZ message or CDM message. If no actual time has been processed, this field is blank.


ARTCC Air Route Traffic Control Center

ARTD Actual Runway Time of Departure

ARTS Automated Radar Terminal System

ASD Aircraft Situation Display

ASDI Aircraft Situation Display to Industry

ASECTR Arrival Sector An operational control sector containing one or more meter fixes.

ASLOT Arrival Slot

ASP Arrival Sequencing Program

ASPM Aviation System Performance Metrics

ASR Airport Surveillance Radar

ATC Air Traffic Control

ATCSCC

ATCT Airport Traffic Control Tower

ATD Actual Time of Departure The actual time an aircraft becomes airborne.

A facility established to provide air traffic control service to aircraft operating on IFR flight plans within controlled airspace and principally during the en route phase of flight. When equipment capabilities and controller workload permit, certain advisory/assistance services may be provided to VFR aircraft. There are 20 ARTCCs in the continental U.S.

Actual departure time from a NAS AZ message or CDM message. If no actual time has been processed, this field is blank.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.The former ETMS function that allowed you to communicate with the ETMS databases. This has been replaced by Traffic Situation Display (TSD). The ASDI stream consists of data elements which show the position and flight plans of all aircraft in U.S.

Arrival slot ID currently assigned to a flight as part of an GDP or AFP. Includes the arrival airport or FCA name, period, slot time in 6-digit format, and an alpha character. The automated program designed to assist in sequencing aircraft destined for the same airport.Provides information on individual flight performance and information on airport efficiency.Approach control radar used to detect and display an aircraft's position in the terminal area. ASR provides range and azimuth information but does not provide elevation data. Coverage of the ASR can extend up to 60 miles.

A service operated by appropriate authority to promote the safe, orderly and expeditious flow of air traffic.

Air Traffic Control System Command Center

The mission of the ATCSCC is to balance air traffic demand with system capacity. A terminal facility that uses air/ground communications, visual signaling, and other devices to provide ATC services to aircraft operating in the vicinity of an airport or on the movement area. Authorizes aircraft to land or takeoff at the airport controlled by the tower or to transit the Class D airspace area regardless of flight plan or weather conditions (IFR or VFR). A tower may also provide approach control services (radar or non-radar).


ATMS Advanced Traffic Management System

ATV Altitude Reservation (flight remark) Displays in the flight remark section.

AWC Aviation Weather Center

AZ Arrival Message (Host) Message sent by host computer to ETMS when a flight is completed.

BE Bridge Event

BENTRY Based Element Entry Time

BETA Base Estimated Time of Arrival

BETD Base Estimated Time of Departure

BLKT Blanket [EDCT]

BRG SCS Bridge Event (No longer used)

BZ Beacon code (message)

CAPL Capacity List (MA function)

CAPS Capacity Select (MA function)

CC Alarm Status of Control Time

CCAN Control Times Cancelled ETMS message that control time was cancelled

Provides a centralized integrated platform for traffic signal system control, information management, and graphical data display.

A service provided by the National Weather Service (NWS) and FAA which collects and disseminates pertinent weather information for pilots, aircraft operators, and ATC.

An event that control times were assigned when creating a bridge for an SCS or ECR request (AFP and GDP)BENTRY is used to save the ENTRY at the time an AFP is issued or the flight departs. The BENTRY is used to compute the amount of departure delay that can be attributed to an AFP. The BENTRY includes any time-out delay modeled by ETMS.

Used to save the last ETA prior to a flight becoming active or controlled. Similar to OETA, but differs in that it includes time-out delay.

Used to save the last ETD prior to a flight becoming active or controlled. Similar to OETA, but differs in that it includes time-out delay.

A type of control applied to all flights that are part of a specific ground delay program. Control Times updated blanket(+/-) revision of GDPControl times were assigned when creating a bridge for an SCS or ECR requestA four-digit transponder code assigned to an aircraft by a NAS center. It is forwarded to the ETMS in a Beacon code (BZ) message subsequent to a flight plan and usually prior to a departure message (DZ). It is also transmitted to the ETMS prior to a center hand-off message (UZ).

Capacity list and refers to the TSD command that shows you the current capacity settings for any airport, fix, or sector.Capacity set and refers to the TSD command that allows you to set the arrival or departure limit of any airport, fix, or sector for periods of time that you specify.Alarm Status for flights arriving more than 5 minutes before or more than 5 minutes after their Control Time of Arrival


CCFP

CCSD Common Constraint Situation Display

CDM Collaborative Decision Making

CDM_MBR CDM Member Flag Flag on ADL to identify CDM participant carriers.

CDMNet Network used by CDM participants

CDR Coded Departure Route

CDT Controlled Departure Time

CETE Control Estimated Time En route

CF FSM alarm status

CGTA Controlled Gate Time of Arrival Stands for Controlled Gate Time of Arrival. Renamed to CTA.CGTD Controlled Gate Time of Departure Stands for Controlled Gate Time of Departure. Renamed to CTD.

CIGS Ceilings

CLR Clearance Short hand for clearance, also an ICAO Clearance message.CLS Aircraft weight class Flag on ADL to identify aircraft weight class (heavy, large, or small).CLSD Closed Short hand for closed.CMPR [EDCT] Compression Control Times updated by compression of GDP or AFP.CNL Cancel ICAO Cancel Flight Plan message, short hand for cancelled.

CNS Consolidated NOTAM Service

CNX Cancel Short hand for cancel.

Collaborative Convective Forecast Product

A process that begins with an initial convective weather forecast for the next 2-6 hours being produced every 2 hours (except for the 05/6Z cycle) by the Aviation Weather Center in Kansas City. This forecast then evolves into a final product through collaboration by participating meteorologists at the Center Weather Service Units (CWSUs), various airlines, and the Aviation Weather Center. The CCFP is a critical input to the development of the Strategic Plan of Operation (SPO) teleconference.

A browser based traffic management tool connected via the CDMnet and designed to emulate the ATC Traffic Situation Display (TSD), but built for the user community. Displays FCA information. The CCSD can be accessed via the ATCSCC Website and CDMnet.

Cooperative effort between the various components of aviation transportation, both government and industry, to exchange information for better decision making.

Collaborative Decision Making Communications Network

Predefined departure routes used to route air traffic around areas of severe weather.The time of departure for a flight currently controlled at an airport by ground delay programs. The estimated flying time from departure point to destination (lift-off to touchdown).

Alarm status for flights that were cancelled but later flew without the flight being reinstated properly.

The height above the ground of the base of the lowest layer of clouds when over half of the sky is obscured.

A service provided by the National Weather Service (NWS) and FAA which collects and disseminates pertinent weather information for pilots, aircraft operators, and ATC.


COMP Compression

CONUS

CPL Current Flight Plan The flight plan that is active or updated with want the flight will fly.CR Collaborative Routing A CDM work group that focuses on routing initiativesCR_TIME Create Time Used to indicate how long ETMS has known about the flight.

CRCT Collaborative Routing Coordination Tool A Mitre reroute tool. One-sided automation (no dispatch input).

CSG CDM Stakeholders Group

CT messages Control Time Messages

CTA Controlled Time of Arrival Arrival time assigned to a flight as part of a GDP or AFP.

CTAS

CTD Controlled Time of Departure

CTFM Collaborative Traffic Flow Management

CTG Aircraft type Flag on ADL to identify aircraft type (jets, props, or turboprops).

CTL_ALM Alarm Flag

CTL_EXMPT Control Exempt Flag

CTL_TYPE Control Type Specific source (program) of the current CTD/CTA.

CTL-ELEM Control Element

CTT Collaborative Technology Test bed

CWSU Center Weather Service Unit Position in the facility that specializes in weather.CX Cancel Flag Identifier Indicator for a cancellation.

Control times were assigned as part of a AFP-Compression or GDP-Compression (AFP and GDP).

Continental, Contiguous, or Conterminous United States

Stands for both CONtinental United States and CONtiguous United States. Refers to the TSD graphic representation of the U.S. borders with the state outlines shown.

The purpose of the CSG is to provide recommendations to the FAA on CDM priorities and activities, oversee the general direction and mission of CDM and to provide prioritization and tasking on possible technology, communication tools etc., towards attaining system efficiencies for the NAS.

Messages sent by ETMS to the host computers in order to implemented delays issued as part of a GDP or AFP. A CT message causes an EDCT to be printed on the flight strip at the departure tower.

Center TRACON (Terminal Radar Approach Control) Automation System

CTAS is a set of tools designed to help air traffic controllers manage the increasingly complex air traffic flows at large airports.Departure time assigned to a flight as part of a GDP or AFP. Also known as EDCT.A systems approach to use collaborative decision making in traffic flow management.

Hexadecimal flag on ADL that indicates alarm status such as non compliance to CTD or CTA.ADL flag used to indicate whether the flight was exempt when the AFP/GDP is computed.

If a flight is controlled (i.e. has a CTD and CTA) this field indicates the constrained NAS element for which a ground delay program or ground stop was run. Currently the CTL_ELEM can be an arrival airport FEA or FCA.

A test facility where CDM programs can be tested before it goes operational.


CXSD Cancel Flight

DA Delay Assignment The delay that is assigned to an aircraft during a GDP.

DACS ETMS system component used for data communication.

DARC Direct Access Radar Control

DART Data Analysis and Reduction Tool

DAS Delay Assignment

DCENTR Departure Center ARTCC that contains the departure airport.DEP Departure Short hand for departure. Can also refer to departure airport.DEST Destination Airport Location the aircraft will land.

DFIX Departure Fix

DLY Delay Short hand for delay

DMGR Delay Manager

DO Drop Out Flight

DP Departure Procedure

DPAT Detailed Policy Assessment Tool

DRVSM

DRWP Diversion Recovery Web Page

A cancelled flight from the schedule database and the TSD command that allows you to cancel the current day's flight plan for a flight number you specify. A flight canceled with the CXSD command will not appear in alert or request server reports.

Data Acquisition Communication System (ETMS component)

Raw Radar without data blocks. DARC is generally used when the HOST computer is down.A data analysis tool that can be modified by adding more data reduction functions and thus provide the user with specific analyses.

A mode for issuing a GDP or AFP in which pop-up flights are given the same average delay as flights initially controlled in the program. The average delays are referred to as DAS delays (formerly known as FA delays). Also a control type indicating that a flight’s control times are the result of the application of a DAS delay.

The point at which responsibility for control of departing flights passes from a Terminal Control Area to an Air Route Traffic Control Center.

A graphic software tool that allows the user to simulate and evaluate the effects of ground delay programs. It can simulate a program under consideration or already in place, and it can track the progress of programs.

Indicates a flight that was originally routed through that area but subsequently changed its route such that it no longer traverses the FEA/FCA.Each DP transition is preceded by the full name optionally followed by the DP name and transition fix name, in parentheses, as they would appear in a flight plan. Generally, the root segment ends at the fix, which is the start of the transition.

A discrete-event computer simulation that models the interactive effects of the National Airspace System (NAS).

Domestic Reduced Vertical Separation Minimum

Plan for reducing separation between usable altitudes from 2000' to 1000' above FL290, in the US domestic system.The Diversion Recovery Page provides the FAA and NAS users with a common picture of the diversion recovery flights that are currently in the system.


DSECTR Departure Sector An operational control sector containing one or more meter fixes.

DSP Departure Spacing Program

DTO Director Technical Operations Responsible for a certain region of facilities.

DTRSN Departure Procedure Transition Fixes

DV Diverted Flight (cancel status)

DV-REC Diversion Recovery

DVRSN Diversion Remark

DVT Diversion Recovery Flight

DZ Departure Message Message sent by host computer to ETMS when a flight is activated.E_TYPE Aircraft Equipment Type Includes both aircraft type (TYPE) and equipment type data.

EA Alarm Status

EAFT Estimated Arrival Fix Time Time over the arrival fix as estimated by ETMS.

EC Engineering Change

EC Alarm Status for Clearance Time

ECR EDCT Change Request

e-CVRS Web reservation and touch tone phone application system

EDCT Expect Departure Clearance Time

EDFT Estimated Departure Fix Time Time over the departure fix as estimated by ETMS.EDT Estimated Departure Time Based on either actual departure time or proposed departure time.

EENTRY Earliest Element Entry Time

EFTA Estimated Fix Time of Arrival Estimated arrival time over fix.

DSP evaluates aircraft departure flight plans at participating airports, models projected aircraft demand at departure resources such as first and second departure fixes, and provides windows of departure times to controllers.

The name of the DP transition fix taken from the historical, early intent, or NAS flight plan. The flight was cancelled and diverted to an alternate destination (cancel status).Indicates that the flight is a recovery of a flight that was previously diverted.Remark that is placed in a flight plans remark section (field 11) for a diversion recovery flight involved in a GDP. The remark signifies priority handling to controllers.Flight that has been diverted due to weather or excessive demand that is flagged as a Diversion Recovery.

The actual flight time is greater than a specified value but the flight status is not cancelled. The default value is 15 minutes (alarm status).

A requested enhancement to a feature that works per requirements and or design.The departure boundaries are more than 5 minutes before or more than 5 minutes after their estimated departure clearance time (alarm status).

An FSM function used to update the EDCT for a flight. Also used as a control type to indicate that the control times are a result of an ECR request.

Enhanced Computerized Voice Reservation System

The time issued to a flight to indicate when it can expect to receive departure clearance. EDCTs are issued as part of Traffic Management Programs, such as a Ground Delay Program (GDP).

The earliest possible entry time into the FEA or FCA, as calculated by ETMS.


EGT Estimated Ground Time Ground time that is predicted by Ground Time Predictor.

EI Early Intent Message

EIAT En-route Impact Assessment Tool Tool to evaluate historical data of en-routes.EMERG Emergency Short hand for Emergency on Advisory and OIS

ENTRY Sector Entry Times

EQUIP Equipment Short hand for equipment on Advisory and OIS

ERAM A HOST computer modernization project

ERIDS En Route Information Display System

ERTA Earliest Runway Time of Arrival

ERTD Earliest Runway Time of Departure

ESC En route Spacing Coordinator (ZDC) An Air Traffic Coordinator that specializes in enroute spacing.

ESIS Enhanced Status Information System

ESP

e-STMP E-Special Traffic Management Program

ETA Estimated Time of Arrival

CDM message sent by a CDM participant to update the route of flight used by ETMS.

Current best estimated time of entry for a flight into an FEA or FCA con sidering all data sources.

En Route Automation Modernization plan

A prototype ARTCC information display system that is installed in the TMUs at ZLC, ZJX and ZBW, and will be sending pertinent NOTAMs to TMU positions in the near future.The earliest arrival time that the CDM participant would like to have assigned to this flight in a GDP. Based on airline submitted data as the earliest time the flight can arrive.The earliest departure time that the CDM participant would like to have assigned to this flight in a GDP. Based on airline submitted data as the earliest time the flight can depart.

A display system designed to provide a large, on the wall, display of currently required control-related information to controllers and TM specialists in each area of the control facilities in which is installed.

En route Sequencing Program, En route Spacing Program

A program designed to fit departing traffic into a densely packed overhead stream. ESP is responsible for smoothing inter/intrafacility traffic flows. TMC's assigned to this position monitor aircraft destined for specific airports, identify potential problem areas and sectors, and ensure smooth traffic flows by initiating appropriate traffic management strategies.

A web tool that helps manage the flow of arrivals and departures for these events, the FAA requires users (i.e., non-scheduled IFR flight operators) to make arrival and departure reservations to and from these airports. The e-STMP web application allows users to request, confirm, update, and cancel a reservation online for aspecific special event.

Best estimated runway arrival time, as computed by ETMS considering all available data sources. Updated Estimated (wheels on) Arrival Time. Prefixes can be E (estimated) L (airline-provided) C (controlled) A (actual)


ETD Estimated Time of Departure

ETE Estimated Time Enroute

ETMS Enhanced Traffic Management System

EWG Enroute Working Group A CDM workgroup that discusses, evaluate and resolve enroute issues.

EX Exempt flag

EXIT Sector Exit Time Estimated time of departing an NAS element.FA Changed Value message Flight Amendment (ETMS Generated)

FACET Future ATM Concepts Evaluation Tool

FAD Fuel Advisory Delay Should mention that this has been replaced by DAS.FADD FA Delay message General FA Delay Message (No longer used)FADE FAA/Airline Data Exchange Interface that is used to exchange data.

FADT Fuel Advisory Delay Table

FADT List Fuel Advisory Delay Table List

FAAO FAA Order Direction the FAA has published for organizations to follow.FC Flight Plan Create Message (Airline) CDM message sent by a CDM participant to create a flight.

FCA Flow Control Area

FCT A CDM work group that focuses on concepts of the future.

FDAD Full Digital ARTS Display u

FDB Flight Data Base (ETMS)

FDIO Flight Data Input/Output A printer that provides hard copy of TM advisories

Best estimated runway departure time, as computed by ETMS considering all available data sources. Updated Estimated (wheels off) Departure time. Prefixes can be S (scheduled) N (early intent) R (rerouted) P (proposed) L (airline-provided) T (taxi) E (estimated) A (actual)

Estimate time are displayed in minutes. ETE = max ((ETA – ETD) (CTA – CTD)) if configured to use Max ETE.ETE = ETA – ETD if configured to use ETE.A term describing an array of functionality in the ATC system, but mostly referring to the ETMS database. A database of all flight information sent by both ATC and users, used to drive many of the traffic management tools.

Indicates whether the flight was considered exempt when the last controls were computed by FSM. Values are Y or N.

Same data as CRCT. NASA product. Funding running out in 2004. ADF bought off on FACET. Allows dispatcher input.

Specifies delays that apply to pop-up flights arriving at a controlled airport during a controlled interval. Contains information about all ground delayed flights (all flights that have been issued an OrigEDCT). If a center or an airline has ground delayed flights their call signs departure airports PTimes EDCTs and CTAs are given for each appropriate center and airline.

An area defined by a traffic manager in order to constrain the traffic flying through that area. FCAs can be used in conjunction with AFPs or reroutes to constrain the traffic flow. FCAs can include filters help define the traffic to which the constraint applies.

Future Concepts of Flow Management Sub-Team

A ‘live’ flight database of all flight information for up to 12hours in the past and 24 hours in the future.


FEA Flow Evaluation Area

FET Flow Evaluation Team

FFP Free Flight Phase/Program

FH Historical Flight Route message

FIXL Fix Loading

FL Flight Level The attitude the aircraft is located. e.g., FL290 for 29,000 feet.

FM Flight Plan Modification Message

FMSS ETMS Message by User Control Times updated by user substitutionFOC Flight Operations Center A facility that has flight operations.FOS Flight Operations System American Airlines’ homegrown tool for flight schedule database.

FP Flight Plan message

FPA Flight Plan Area

FPL Filed Flight Plan message ICAO identifier for filed flight plan.

FPPP Flight Plan Pre-Processor

FPSD Flight Plan Schedule Database

FR Flight Route message

FEAs provide reroute modeling using the Create Reroute capability. Stakeholders can monitor shared FEAs through reroute monitor in traffic situation display (TSD).The Flow Evaluation sub-team will strive to increase system efficiency by reducing route coordination time and enhancing system planning through the creation of common situational awareness of potential route alternatives, procedures and coordination processes. This sub-team will develop any potential opportunities having to do with routes or issues generally within the en route domain.

The concept of Free Flight will give operators maximum flexibility, consistent with safety, to fly fuel-efficient routes. An internal ETMS message used to apply a historical route to a flight created from a CDM message.The manager can request a count of the number of flightstraversing a specified arrival fix or all arrival fixes for a specified airport.

CDM message sent by a CDM participant to update data, such as times, for a flight.

A message used by a NAS user to send a flight plan to the host computer. Also can be used to send an early intent flight plan to ETMS.

The geographical area assigned by regional air traffic divisions to a flight service station for the purpose of search and rescue for VFR aircraft, issuance of NOTAMs, pilot briefing, in-flight services, broadcast, emergency services, flight data processing, international operations, and aviation weather services.

a.k.a. FP3. A CDM application developed by Mitre that analyzes user flight plan data against a database of ATC facility LOAs and SOPs. Emulates the HOST environment.The TSD command that allows you to add a flight plan record to the Official Airline Guide (OAG) database. The flight plan will remain in the database marked as an “added flight” until the next OAG update. An internal ETMS message used to model a flight on an assigned reroute rather than on its historical route.


FS Flight Schedule message

FSA Flight Schedule Analyzer

FSM Flight Schedule Monitor

FTM Flight Table Manager

FU Using Historical Route

FX Flight Cancellation Message (Airline)

FZ Flight Plan Message (Host)

GA General Aviation An organization that represents aircraft other than airliners.

GA CDR

GAAP General Aviation Airport Program

GAEL General Aviation Estimates List

An internal ETMS message used to create a flight entry based on OAG schedule data.Real-Time Flight Schedule Analyzer (RT-FSA) is a web-based analysis tool developed by Metron Aviation to assess the performance of ground stops (GS), ground delay programs (GDPs), and airspace flow programs (AFPs) in real-time.

A CDM application designed by Metron that is used by both the ATCSCC and CDM member airlines. FSM is used to create and run GDPs and Ground Stops.A program that maintains the database of flight information used for the TSD display. An internal ETMS message used to put a flight back on its historical route after it had been modeled on an assigned reroute. A CDM message used by the CDM participants to indicate a cancelled flight (cancel status).NAS flight plan messages, which are received by the ETMS and include the proposed departure time of each flight.

General Aviation Coded Departure Routes

The CDR program provides a rapid means to reroute aircraft when the filed route is constrained by either weather or congestion. Historically, abbreviated CDR clearances have only been issued to airline customers who have signed a Memorandum of Agreement (MOA) with the facilities that issue abbreviated CDR clearances. Recently, general aviation customers have requested the use of this reroute capability. This change permits general aviation customers to communicate to Air Traffic Control (ATC) facilities their ability and willingness to accept CDRs and their capability to accept abbreviated clearances associated with CDRs. Please see the GA CDR Advisory circular for more details.

GAAP is a type of GDP that allocates arrivals in an equitable manner to an airport temporarily in a high demand situation such as the NBAA conference, Indianapolis 500 Race, etc. It improves predictability and reliability for all operators – scheduled and unscheduled. The significant difference between a traditional DAS GDP and a GAAP is the way in which delays are assigned to fights that are unknown at the time of program implementation.

Refers to the TSD command that allows you to view the estimated number of General Aviation (GA) flights that will arrive and depart within each 15 minute interval from an airport you specify.


GAES General Aviation Estimates Set

GCD Great Circle Distance The distance between the departure airport and arrival airport.

GDP Ground Delay Program

GDPE Enhanced Ground Delay Program

GDT Ground Delay Tools

GI General Information Message (Host)

GS Ground Stop

GS Ground Speed Flight speed measured relative to the ground, expressed in knots. GTM Ground Time Method A method for making predictions of flights. GTP Ground Time Predictor A metric that helps reduce departure time error.

GTP ACID Ground Time Predictor Aircraft Identifier

GTP AIRP Ground Time Predictor Airport

GUI Graphical User Interface A graphical interface that allows the human to interact with the system.

Refers to the TSD command that allows you to change the estimated number of General Aviation (GA) flights that will arrive and depart during each 15 minute interval from an airport you specify for periods of time that you specify.

Ground Delay Programs are implemented to control air traffic volume to airports where the projected traffic demand is expected to exceed the airport's acceptance rate for a lengthy period of time. Lengthy periods of demand exceeding acceptance rate are normally a result of the airport's acceptance rate being reduced for some reason. The most common reason for a reduction in acceptance rate is adverse weather such as low ceilings and visibility.

The GDPE team, formerly the Airport Arrivals and Departures (A&D) group in CDM is responsible for identifying, developing and implementing ways to make flight arrivals into airports and departures from airports more efficient.

GDT have capabilities that provide the ‘What If’ functions that allow specialists to analyze impacts of implementing other alternatives using the same event scenario.A capability that allows facilities to electronically sort and deliver NOTAM information to sectors using the Host General Information (GI) messaging function.Ground Stops are implemented for a number of reasons. The most common reasons are: To control air traffic volume to airports when the projected traffic demand is expected to exceed the airport's acceptance rate for a short period of time; To temporarily stop traffic allowing for the implementation of a longer-term solution, such as a Ground Delay Program. The affected airport's acceptance rate has been reduced to zero. Control Times assigned by Ground Stop

Displays information about the most recent departures for a specified flight from a specified airport. Up to 14 aircraft. Displays a summary overview of ground times experienced by flights at specified airports over a 24-hour period.


HADDS

HCS Host Computer System

HDTA High Density Traffic Airports

HID Host Interface Device The program that runs between the two ETMS file servers.

HITL Human in the Loop

HOST ARTCC Computers

HVR Historically Validated Restrictions

ICD Interface Control Document Document specifying technical interface details

ICR Integrated collaborative rerouting

ID Identification Short hand for identification, can be referring to the aircraft IDIDENT Flight Identifier Unique alphanumeric aircraft identifier. Also known as call sign.

IDFL Interactive Dynamic Flight List

IDS Information Display System Displays status of the facilities airports.

IENTRY Initial Element Entry Time

IFR Instrument Flight Rules

IGTA Initial Gate Time of Arrival

Host/ATM Data Distribution System, Host Acquisition Data Distribution System

The host system that the FAA uses to distribute data through the ATC system.

Contains two ETMS file servers that contain all data for ETMS program functions.High Density Traffic Airports are specified in title 14 of the code of Federal Aviation Regulations, Part 93, and Subpart K. Includes

Term used in to describe operational testing of various procedures and software.Main center computer that handles radar information, flight plans, and a variety of other functions.Term used to describe restrictions to air traffic imposed by various FAA facilities based on past requirements in similar situations.

A process that builds on FEA/FCAs. The ICR process requires that a constraint is identified early. Traffic management may issue a planning (PLN) advisory describing the system constraint and providing route guidance. System stakeholders are allowed an opportunity to consider the area of concern, and provide early intent (EI) messages that communicate their decisions in response to the constraint. EI messages update enhanced traffic management system (ETMS) flight trajectories, monitor alert values and routing intentions. At the expiration of the EI window, traffic management can then analyze the customer responses and decide if the actions taken have resolved the issue, or if recommended routes, required routes, airspace flow programs (AFP) and/or other traffic management initiatives (TMIs) will be necessary to further reduce demand.

Flight list as generated by TSD that is dynamic where as flights update based on time.

Stands for “Initial Entry Time” – This is the original entry time for a flight into an area defined by an FEA or FCA. It is used to determine the order for assigning flights to slots in an AFP.A set of rules governing the conduct of flight under instrument meteorological conditions. This is the arrival time when the flight was first created. It is used to determine the order for assigning flights to slots in a GDP.


IGTD Initial Gate Time of Departure

III Category III Short hand for CAT III (flight remark)IN In Actual Time reported by the airlines for gate arrival.

INHB Inhibit Flight

ITWS Integrated Terminal Weather System

KVDT Keyboard Video Display Terminal

LAADR Low Altitude Alternate Departure Routing

LAHSO Land and Hold Short Operations

LAWRS

LFG Lifeguard Short hand for a Lifeguard Flight (flight remark).

LGTA Airline Gate Time of Arrival

LGTD Airline Gate Time of Departure

LIFP List Flight Plan Lists of flight plans for selected aircraft.LO CIGS Low Ceilings Referring to the location of the ceilings.

LOC Localizer The component of an ILS that provides course guidance to the runway.

LOCID Location Identifier

LOG ETMS Log Contains information on previous day events.

This is the departure time when the flight was first created. It is used to positively identify a flight leg.

Inhibit flight in schedule database and the TSD command that allows you to inhibit (or cancel temporarily) either a specific flight or all flights for a specific airline in the schedule database. Provides automated weather information and forecasts to air traffic controllers and supervisors. Its products require no meteorological interpretation to air traffic controllers, air traffic management systems, pilots, and airlines.

Input device that emulates a window on the DSP display to send flight plan amendments/reroutes back to the Host.LAADR is a procedure whereby flight altitudes may be limited to flight level 230 and below.Operations which include simultaneous takeoffs and landings and/or simultaneous landings when a landing aircraft is able and is instructed by the controller to hold short of the intersecting runway/taxiway or designated hold-short point. Pilots are expected to promptly inform the controller if the hold short clearance cannot be accepted.

Limited Aviation Weather Reporting Service

At stations without Automated Surface Observing System (ASOS) or Automated Weather Observing System (AWOS) - A facility where observations are taken, prepared, and transmitted by National Weather Service (NWS) certified personnel at FAA control towers or Flight Service stations on a limited basis to support aviation requirements.

Predicted gate time of arrival provided by the CDM Participant in a CDM message.Predicted gate time of departure provided by the CDM Participant in a CDM message.

Refers to a prompt often used to request a place name. It can refer to an airport, navaid, fix, sector, ARTCC, or other FAA place designator.


LRTA Airline Runway Time of Arrival

LRTD Airline Runway Time of Departure

LTOD Length of Time Out Delay

MA Monitor Alert

MAMS Military Airspace Management System Similar to the ETMS system but for military.

MAP Monitor Alert Parameters

MBO Military Base Operations Operations that occur on military base.

METAR Aviation Routine Weather Report

Micro-EARTS

MINIT Minutes-in-Trail A specified interval between aircraft expressed in time.MIS Meteorological Impact Statement Weather information that is given verbally or written on paper.MIT Miles-in-Trail A specified interval between aircraft expressed in nautical miles.

MOA Military Operating Area

MOS Mission Operations Specialist

MOU Memorandum of Understanding

MP Mission Flight Plan message (Host) Message to the Host computer system about the flight.

MP RVR Middle Point

NADIN

NARP North American Route Program An operational concept that is based on NAS Services.

Predicted runway time of arrival provided by the CDM Participant in a CDM message.Predicted runway time of departure provided by the CDM Participant in a CDM message.The length of the time that the flight has currently been time outdelayed, in minutes.The ETMS uses the flight event data produced during flight modeling to estimate the traffic demand at each monitored airport, sector, and fix, to generate a monitor alert whenever a traffic demand is projected to exceed a pre-defined alert threshold.

The level of traffic at which a sector should be alerted. The level is defined as the number of aircraft predicted to be in the sector at the same time.

A type of weather report produced through the Report command in the Weather menu.

Micro En route Automated Radar Tracking System

An exchange of track data messages between the ETMS and theAlaskan En-Route Automated Radar Tracking System (Micro-EARTS) by way of a TMU collocated at Anchorage ARTCC facility. This ARTCC does not have a Host Computer System. Instead, Micro-EARTS provides the same services and functions as the HCS. Micro-EARTS also supplies position reports from San Juan, Honolulu, and Guam.

A type of Special Use Airspace reserved for military activities. Can also mean Memorandum of Agreement.Military specialist who approves military operations in the NAS with the help of ATC specialist. Letter between a facility and some other entity outlining agreed upon procedures.

Runway Visual Range from the middle point of the runway. Its values range from 00 to 60+, representing hundreds of feet.

National Airspace Data Interchange Network

The operational strings have the necessary communications equipment to connect to various external carriers.


NAS National Airspace System

NASSI NAS Status Information

NCAR Weather service station for aviation.

NCWF National Convective Weather Forecast Displays the current and 1-hour forecast of existing thunderstorms

NESP National Enroute Spacing Position

NFDC National Flight Data Center Graphical data that is sent to ETMS for use with weather programs.

NGRVR New Generation Runway Visual Range

NM Nautical Mile International unit equal to 6076.115 feet (1852 meters).

NMCC National Maintenance Control Center Maintenance center that all facilities can call with maintenance issues.

NOC Canadian Control Center is similar to ATCSCC

NOCC National Operations Control Center

NOM National Operations Manager

NOS National Ocean Service

NOWRAD WSI’s Weather Radar Mosaic Product

NRP North American Route Program

NSSFC National Severe Storms Forecast Center

NTAP

NTML

NTMO National Traffic Management Officer

The common network of U.S. airspace; air navigation facilities, equipment and services, airports or landing areas.A general term for real-time data that shows the state of the NAS. RVR is an example of NASSI data.

National Center for Atmospheric Research

Position in the ATCSCC designed to handle enroute traffic flow management initiatives.

Provides visual range products at specific points along a precision runway, enabling operators to determine the Visual or Instrument category under which the airport is operating.

Canadian National Operations Control Centre

A system that monitors the NAS for outages and other equipment problems.Is responsible for planning and directing the national traffic management program and all control room operations. Data Explorer offers interactive mapping tools that allow users to locate NOS products in any area in the United States and its territories through a metadata catalog. Radar-determined precipitation data using a six level color-coded solid overlay, drawn below the other map elements so that they are still visible.

The NRP is a set of rules and procedures which are designed to increase the flexibility of user flight planning at or above FL290 by allowing users to file as desired, within published guidelines. Provides short-term forecasts of hazardous weather to the public and the National Weather Service's local field offices.

National Track Analysis Program - NOTAM Publ.

Analysis program to determine if an operational error has occurred. Also known as Notices to Airmen Publication

National Traffic Management Log (same as TMLog)

The National Traffic Management Log (NTML) is utilized to record TM activities in the facility.The NTMO stays abreast of the key events and initiatives within the assigned area, often assisting the specialists during busy situations and making key decisions affecting the area.


OADR On or About Date of Release

OAG Official Airline Guide Publisher of the standard airline schedule information.

OCS Offshore Computer System

OCTA Original Control Time of Arrival OCTA preserves the first controlled arrival time (CTA) for a flight.

OCTD Original Control Time of Departure

OD_DIF Difference of Departure Times

ODAPS Oceanic Display and Planning System

OENTRY Original Element Entry Time

OEP Operational Evolution Plan

OETA Original Estimated Time of Arrival

OETD Original Estimated Time of Departure

OETE Original Estimated Time En route

OFDPS Offshore Flight Data Processing System System that processes flight data from oceanic flights.

OFF Off Actual time reported by airlines for wheels up. OGTA Original Gate Time of Arrival Original time flight was intended to arrive. Renamed to OETA.OGTD Original Gate Time of Departure Original time flight was intended to depart. Renamed to OETD

OIS Operational Information System

OMP Offshore Message Processing Messaging process that the OCS uses to send messages.ON Runway On Time Time at which a flight touches down

Declassify date and time for the use of the military to negotiate an early release date and time to allow for the proper planning of the mission and the timely dissemination of NOTAM information.

Is the oceanic flight data processing capability provided by Offshore Computer System (OCS) at the Anchorage Air Route Traffic Control Center (ARTCC). It will soon be replaced by a new Oceanic System.

OCTD preserves the first controlled departure time (CTD, a.k.a. EDCT) for a flight.The difference between AGTD and OGTD, with a designator showing the status of the comparison. The Flight Data Processing 2000 (FDP2000) system is the oceanic flight data processing capability.OENTRY is used to save the ENTRY last modeled by ETMS before either an AFP is issued and the flight departs, or the flight is “time-out” delayed by ETMS.The OEP Associates Team is responsible for the development and implementation of the Operational Evolution Partnership (OEP), FAA's plan for realizing the Next Generation Air Transportation System (NextGen).

OETA is used to save the ETA last modeled by ETMS before either a TMI is issued, or the flight departs, or the flight is “time-out” delayed by ETMS.

OETD is used to save the ETD last modeled by ETMS before either a TMI is issued, or the flight departs, or the flight is “time-out” delayed by ETMS.

The original estimated flying time from departure point to destination (lift-off to touchdown).

A web-based application that displays up to the minute Ground Delay, Ground Stop, deicing, and general airport delay information.


OOOI Out, Off, On, and In

OP Operations Plan A plan managers can use in the facilities

OPSNET Operations Network

ORB Operational Review Board

ORIG Origin airport FAA designator showing the airport of origin.

OSF Operational Support Facility

OSIC Operations Supervisor in Charge

OT&E Operational Test & Evaluation

OTS Out of Service Short hand for out of service. OUT Out Actual time reported by airlines for gate pushback.

PA_DIF Difference of Arrival Times

PD_DIF Difference of Departure Times

PDARS

PDC Pre-Departure Clearance

PETE Proposed Estimated Time Enroute Refers to the filed estimated time enroute

OUT/OFF/ON/IN Time that the flight was out of the departure gate, off the departure runway on the arrival runway and in the arrival gate.

The official source of historical NAS air traffic Delays and Operations. Daily Data is available on a next day basis.It explores the interdependencies of various agency activities, providing a cross-agency perspective that will assist with integration, timely rulemaking, identification of required policy changes, and understanding of funding impacts.

Is an organization within the FAA that modifies software and/or special purpose databases for ATC systems. The OSF matches the software database of each airport to its local area terrain, and implements software to facilitate local procedures, among other things.

When two or more operations supervisors (OS) are on duty, one shall be assigned as operations supervisor-in-charge.Is a system test in a test bed used by the FAA to verify that requirements have been met and that the system is ready for conditional operational use.

The difference between AGTA and PGTA, with a designator showing the status of the comparison. The difference between AGTD and PGTD, with a designator showing the status of the comparison.

Performance Data Analysis and Reporting System

PDARS calculates a range of performance measures, including traffic counts, travel times, travel distances, traffic flows, and in-trail separations. It turns these measurement data into information useful to FAA facilities through an architecture that features (1) automatic collection and analysis of radar tracks and flight plans, (2) automatic generation and distribution of daily morning reports, (3) sharing of data and reports among facilities, and (4) support for exploratory and causal analysis.

The PDC function automates the Clearance Delivery operations in the ATCT for participating users. The PDC function displays IFR clearances from the ARTCC to the ATCT.


pFAST Passive Final Approach Spacing Tool

PFWP Pathfinder Web Page

PGTA Proposed Gate Time of Arrival

PGTD Proposed Gate Time of Departure

POET Post Operations Evaluation Tool

PSP Playbook Spacing Program

PT Planning Team, Planning TELCON Conference calls to discuss an issue or update status.

PTR Program Trouble Report

PURG Purge Flight Record

QA Quality Assurance

QAR Quality Assurance Review

RAL Last Reported Altitude Displayed in a data block as last altitude reported.

RAPT Route Availability Planning Tool

RAT Reroute Advisory Tool

Provides advisories for landing sequence, landing runway, speed, and heading that assist controllers in managing arrival traffic andachieving an accurately spaced flow of traffic on final approach.Is an online browser-based freight forwarding solution that delivers up-to-the-minute air cargo information online, without the need for installing or maintaining software. The platform integrates our dynamic flight routing engine with passenger and cargo flight schedules, weather, real-time FAA airport status, flight on-time statistics and other information, to deliver the comprehensive, real-time information needed to optimize your air freight scheduling decisions.

Arrival time from NAS. Generally this is initially set from the flight plan, and then updated when DZs and UZs are processed.Departure time from NAS flight plan. This is initially set from the flight plan and may be updated if the flight plan is amended.A Post Analysis tool that allows users to review a flight history, associated messages, and route of flightThe National Playbook is a collection of Severe Weather Avoidance Plan (SWAP) routes that have been pre-validated and coordinated with impacted ARTCCs. The National Playbook is designed to mitigate the potential adverse impact to the FAA and users during periods of severe weather or other events that affect coordination of routes. These events include, but are not limited to, convective weather, military operations, communications, and other situations.

A report that is compiled of all the errors that occur during testing the are discussed and tracked.The cancellation of a TMI. The purge process removes from ETMS all TMIs currently in place for aspecific element.Are the activities needed to provide adequate confidence that processes are established and continually improved in order to produce products that meet specifications. A review is done on the processes conducted to make sure the products are meeting specifications.

Is a decision support tools that combine state-of-the-art weather forecasts with operational flight data to help FAA traffic managers and airlines answer questions.A CDM application used by the command center to publish reroute advisories and lists of flights affected by each advisory.


RBS Ration By Schedule

RBS++ Enhanced Ration By Schedule

RCTLl Re-controlled Control Times Control Times assigned to re-controlled flight

RCWF Regional Convective Weather Forecast

RLSD Released Short hand for released.

RM Removed The flight has been removed from the ETMS database (cancel status).

RMGR Route Manager ETMS tool that allows a user to look up details about routes.

RMT Route Management Tool

RO Rollout

ROG Route Option Generation

RPL Replace Flight Plan message ETMS message for replace flight plan.RRTES Reroutes A new path of flight.

RS RS Cancelled

RT Route message ETMS message for route.

RT FSA Real Time Flight Schedule Analyzer

RTE Flight Route

RT-Find

For scheduled carriers, the rationing is based upon the original schedule, and not the current arrival time projections for CDM GDPs.

An enhanced version of RBS where all flights with the same MAJOR value are considered together during the intra-airline swapping portion of RBS++ and Compression.

The NCWF uses national mosaic radar information, echo top mosaics, cloud-to-ground lightning data and GOES satellite/RUC model-retrieved cloud-top heights combined together to produce a convective hazards detection field.

A CDM application developed by Metron designed to map and display CDRs, Preferred Routes, airport and navigation facilities, and any changes to those routes during the 56-day cycle.Runway Visual Range from the Rollout point of the runway. Its values range from 00 to 60, representing hundreds of feet. ROG allows users to view CDRs, national preferential routes, and playbook routes. The ROG workspace provides customers with the capability to identify pre-coordinated reroute options for their flights affected by a constraint or traffic management initiative.

Indicates whether the flight is currently cancelled and an RS message has been processed for this flight. An RS message is an internal ETMS message generated when an Authorized FAA User takes an OAG flight out of the database.

Is a web-based analysis tool developed by Metron Aviation to assess the performance of ground stops (GS), ground delay programs (GDPs), and airspace flow programs (AFPs) in real-time.The Individual aircraft's route of flight, it either be a written notation of the route or a graphic depiction of the flight path.

Stand Alone ZDC Local Departure Route Tool

A program that ZDC has developed themselves to help with local departure.


RUC Rapid Update Cycle (Grid Weather data)

RVR Runway Visual Range

RVSM Reduced Vertical Separation Minimum

RWY Runway

RZ Cancellation Message

S2K Spring 2000 Committee

SAIDS A total digital facility at ATL TRACON.

SAM Special Air Mission

SAMS

SBRG SCS Bridge Event Control Times updated by SCS or ECR bridging (formerly BRG)

SC Slot Create

SCDT List Selected Control Departure Time List

Provides accurate numerical forecast guidance for weather-sensitive users for the next 12 hour period. The RUC runs at the highest frequency of any forecast model at the National Centers for Environmental Prediction (NCEP), assimilating recent observations aloft and at the surface to provide very high frequency updates of current conditions and short-range forecasts using a sophisticated mesoscale model.

RVR data includes visibility, ambient light, and runway lighting intensity along an airport runway.The goal of RVSM is to reduce the vertical separation above flight level (FL) 290 from the current 2000-ft minimum to 1000-ft minimum. This will allow aircraft to safely fly more optimum profiles, gain fuel savings and increase airspace capacity.

Shorthand for runway. Its numeric values are from 01 through 36. A sub-runway value might be appended to the RWY. The sub-runways are defined as L (left), R (right), or C (center). A NAS flight plan cancellation message. Also used as a flag to indicate that a flight is considered cancelled due to an RZ message.

Committee formed to explore immediate remedies for the 2000 thunderstorm season. Committee continued it's work in subsequent years with S2K+1, S2K+2, etc.

Systems Atlanta Information Display System

Is an aircraft that provides safe, comfortable, and reliable air transportation for the President, Vice President, Cabinet, members of Congress, and other high-ranking American and foreign dignitaries.

Special Use Airspace Management System

SAMS will display and record SUA and other types of airspace area transactions tracked in the National Airspace System (NAS).

A CDM message used by a NAS user to create a slot for a flight arriving past the end of a GDP for the purpose of putting that flight into proper order with other controlled flights. Also, a control type indicating that a flight’s control times are the result of an SC message. Also can stand for Shift Coordinator.

Contains flight delay information for the airport that has been issued a ground delay. Contains information such as flight’s call sign, equipment type, departure point, Ptime, Etc.


SCS Slot Credit Substitution

SDB Schedule Database (ETMS)

SF Spurious Flights

SGTA Scheduled Gate Time of Arrival Scheduled gate arrival time from OAG.SGTD Scheduled Gate Time of Departure Scheduled gate departure time from OAG.

SH Slot Hold Flag

SI Substitution Request Substitution processing messages received from airlines.

SIA Status Information Area

SL_HOLD Slot Hold Flag

SMA Surface Movement Advisor

SMS Surface Management System

SOP Standard Operating Procedure

SPD Speed Refers to the ground speed filed in a flight plan.SPO Strategic Plan of Operation See SPT

SPT Strategic Planning Team

SR Special Route (military) Special routes that are given to military to complete their mission.

STAR Standard Terminal Arrival Route

STMC The shift supervisor at the TMU who oversees the work of the TMCs.

A message used by a NAS user to swap a slot that can’t be used for a slot that can be used. Also, a control type indicating that a flight’s control times are the result of an SCS request.A database that consists of airline schedules for one month. This database is structured to provide fast look-up of airline schedules by both airport and time.Spurious Flights or flights submitted as SI cancellations with no corresponding entries in the OAD (alarm status).

Slot hold flag indicates whether the slot associated with this flight is being held, or would be held, by the NAS User for the next compression. The compression algorithm will not automatically fill slots that are held.

Is the second part of the ESIS system. SIA is the location the information is displayed. It uses the administrative PC at each supervisor workstation to support the preparation and display of status type information on ESIS.

ADL flag used to indicate whether the slot for this flight is being held, by the NAS user for the next compression.SMA provides aircraft arrival information, at 20-second intervals, to airline ramp personnel and towers. Its primary purpose is to increase awareness of traffic flow into the airport, giving ramp control operators precise touchdown times.

an enhanced decision support tool that will helpcontrollers and airlines manage aircraft surface traffic at busy airports.Written document published after each SPT telcon outlining the constraints and plans of action in the NAS.

The Strategic Planning Team acts as a focal point for the development of collaborative Strategic Plans of Operation. Their goal is to provide advanced planning information for system users and air traffic facilities in order to maximize the utilization of the NAS in an organized and equitable manner.

A STAR is an ATC coded IFR arrival route established for application to arriving IFR aircraft destined for certain airports.

Supervisory Traffic Management Coordinator


STMP Special Traffic Management Program

STRSN Set procedure fixes to establish a flow into an airport.

SUA Special Use Airspace

SVRWX Severe Weather Severe weather that affects traffic flows.

SWAP Severe Weather Avoidance Plan

SWP SWAP flight (flight remark) A flight that has been routed around due to weather.

TCA Tactical Customer Advocate

TCA Terminal Control Area

TCAP Traffic Count Automation Program

TD Touchdown Point

TDB Traffic Demand Database (ETMS)

TDWR Terminal Doppler Weather Radar

TDWRWS

TFC Traffic Short hand for traffic.TFM Traffic Flow Management Generic term referring to the flow management side of ATC.TFM-I/TFMI Traffic Flow Management Infrastructure TFM Infrastructure between all the programs.

A STMP is a long range strategic initiative that is implemented when a location requires special handling to accommodate above normal traffic demand, e.g. Master’s Golf tournament, NBAA Convention, etc.

Standard Terminal Arrival Route Transition

Special use airspace and volumes of airspace for which aircraft flight has been limited for one reason or another. They include alert areas, MOAs, prohibited areas, restricted areas, and warning areas.

An approved plan to minimize the effect of severe weather on traffic flows in impacted terminal and/or ARTCC areas. SWAP is normally implemented to provide the least disruption to the ATC system when flight through portions of airspace is difficult or impossible due to severe weather.

Position in the ATCSCC designed to handle users questions and concerns.A volume of airspace above an airport in which all flights are subject to operating rules and pilot and equipment requirements. Is a program that automatically counts the takeoffs and landing at the airports. RVR touchdown point that is depicted on IFR charts. Values range from 00 to 60+, representing hundreds of feet. The database contains traffic demand count and alert thresholdfor each element, each event type, and each 15-minute interval.TDWR is an automated radar system that provides air traffic controllers in terminal radar approach facilities and air traffic control towers with detailed real time information about severe weather conditions, including wind shear, in and near an airport’s approach and departure corridors.

Terminal Doppler Weather Radar Wind Shear

A weather system that tries to determine the location and severity of low-altitude wind shear phenomena and other weather hazards (e.g. tornadoes and turbulence) and to provide the pertinent information to real-time air traffic control users.


TFM-M Traffic Flow Management Modernization

TM Traffic Management Generic term for traffic management.

TMA Traffic Management Advisor

TMA-MC

TMC Traffic Management Coordinator

TMCIC Insure all duties of the day are completed.

TMI Traffic Management Initiative

TMLog

TMO Traffic Management Officer Head of the Traffic Management Unit of a facility.

TMP Traffic Management Program

TMS A specialist that oversee traffic in a specified area.

TMU Traffic Management Unit

Replacement for ETMS. A major new program to modernize the FAA traffic flow management infrastructure. The program goals include enhancing information sharing between commercial aviation system users as well as improving system-wide cooperative and collaborative planning, decision-making and congestion management.

Help traffic management coordinators (TMCs) anticipate future demand and regulate traffic flow into the TRACON.

Traffic Management Advisor – Multiple Center

Assists in planning and managing streams of arrival traffic into selected Terminal Radar Approach Control (TRACON) facilities that receive traffic from two or more en route centers. The person or persons who work in the TMU and manage the flow of air traffic in the Center's airspace.

Traffic Management Coordinator in Charge

When TMCs coordinate with other facilities and implement some kind of traffic management program, it is called a TMI. This initiative could include MIT (miles-in-trail) restrictions on aircraft bound for specific airports or to help alleviate a sector being overloaded with aircraft.

Traffic Management Log (same as NTML)

The National Traffic Management Log (NTML) is utilized to record TM activities in the facility.

A special program implemented at airports that are expected to become busy enough that demand will exceed the capacity of the airport. Events such as the Indy 500 or the Super Bowl , or even unusually large amounts of traffic into some of the resorts like Aspen , Sun Valley, and Jackson during holiday periods, will prompt the need for a TMP. These programs are also called STMPs (Special Traffic Management Programs). They are initiated nationwide by the ATCSCC. Pilots are notified of these programs and are required to get special reservation times for arriving at the airport.

Traffic Management Specialist (at ATCSCC)

Unit responsible for the management and balance of air traffic within the ARTCC's control area in order to optimize air traffic flow through the NAS. The actions of the TMU are coordinated by the Command Center (ATCSCC).


TO Time Out

TOC Time-Out Cancel A message logged when a flight is time-out cancelled (see TO).

TOD Time Out Delay

TOM Oceanic Position Update Message from ETMS about an Oceanic Position Update

TRACON Terminal Radar Approach Control

TSD Traffic Situation Display

TSTMS Thunderstorms Short hand for thunderstorms on advisory or OIS

TT-FCA Time To Reach FCA

TYPE Type

TZ Position Update message (Host, ARTS)

UDG User Defined Group Refers to a group from the Open Data Set component.UDP Unified Ground Delay Program Shorthand for Unified Ground Delay Program.UPD [EDCT] Update Control message meaning update

URET User Request Evaluation Tool

USER/USR User Category

UTC Coordinated Universal Time (Zulu)

A flag indicating that a flight is considered cancelled because its expected departure time is too far in the past and the flight has not been activated.

Indicates that a flight’s expected departure time is in the past without it being activated, but the flight has not yet been time-out cancelled.

A terminal ATC facility that uses radar and non-radar capabilities to provide approach control services to aircraft arriving, departing, or transiting airspace controlled by the facility.A tool used by Traffic Management Specialists to monitor the position of air traffic and to determine the traffic demand on airports and sectors.

For custom FEA/FCAs, displays the Time To Reach FCA data, which is estimated in minutes.Refers to the type of control last applied to this flight. Types include GDP, GS, SUB, UPD, FA, COMP, BLKT; or aircraft type (B747, DC10, etc.) Aircraft Type.Messages transmitted from the ARTCCs, which update the position and speed of each airborne flight every five minutes. Based on the NAS track tables.

An automated tool provided at each Radar Associate position in selected En Route facilities. This tool uses flight and radar data to determine present and future trajectories for all active and proposed aircraft and provides enhanced, automated flight data management.

Refers to the User Category (air taxi, cargo, commercial, general aviation, military, and other).Abbreviated as UTC, and therefore often spelled out as Universal Time Coordinated and sometimes as Universal Coordinated Time. It is the standard time common to every place in the world. Formerly and still widely called Greenwich Mean Time (GMT) and also World Time, UTC nominally reflects the mean solar time along the Earth's prime meridian.


UX Update Cancelled

UZ Boundary Crossings message (Host)

VACAPES Virginia Capes

VAPS Visual Approaches

VNTSC

VOL Volume Short hand for volume.

VS Route VACAPES SWAP Route

VSBY Visibility

VT Verify Time Short hand for verify time.

WET Weather Evaluation Team

WJHTC William J. Hughes Technical Center FAA's Technical Center located in Atlantic City New JerseyWND Wind Short hand for wind on advisory or OISWSD Web-based Situation Display Web based version of a Traffic Situation Display (TSD)WU Weather Unit Refers to any weather system that provides information.WX Weather Short hand for weather.WX DEV Weather Deviation A deviation from flight plan due to weather.WXR Severe Weather Route Flight has been rerouted due to severe weather.XML Machine Readable Mark-up Language Computer language of standardized mark-up tags

Indicates whether the flight is currently cancelled due to an EDCT UPDATE cancel. An Authorized FAA User may utilize the EDCT UPDATE command to cancel a flight that is part of a TMI.Message sent from host computer to ETMS when a flight crosses a center boundary.Airspace Routes are in military controlled airspace off the East Coast and are used only when identified on an OP or on the Severe Weather Reroute Advisory. The use of VACAPES areas requires coordination with the military.

An approach conducted under Instrument Flight Rules that authorizes the pilot to proceed visually and clear of clouds to the airport. Usually this will be used in conjunction with Visual Separation. When using Visual Separation, a pilot sees the other aircraft involved, and upon instructions from the controller, provides his own separation by maneuvering his aircraft as necessary to avoid it. Visual Separation requires less spacing between aircraft than radar separation allowing more aircraft to land in a given period of time.

Volpe National Transportation Systems Center

The heart of the TFM Infrastructure. Located at Cambridge, MA, the ETMS Hub provides the centralized, real-time, continuous data collection and processing functions to support the entire TFM infrastructure.

VS routes are coded routes used only for SWAP contingencies, the FAA does not intend to publish the routes on any charts that are for public use.

The ability, as determined by atmospheric conditions and expressed in units of distance, to see and identify prominent unlighted objects by day and prominent lighted objects by night.

The overall role of the Weather Evaluation sub-Team (WET) is to provide recommendations on user requirements for the CCFP; Consider/establish draft requirements for a terminal, TRACON, or ‘hub’ area forecast.


Z Zulu Time

Another term used to designate Coordinated Universal Time (UTC), the standard time common to every place in the world. Formerly and still widely called Greenwich Mean Time (GMT) and also World Time, UTC nominally reflects the mean solar time along the Earth's prime meridian.

CDM Common Terms 02-12-2008

CDM Common Terms

Term DefinitionActive

Ad Hoc

ADL TIME: And advisory field that lists the time stamp of the ADL on which this program was modeled.AffAvgDelay

Airborne Holding A deterministic mathematical model used in FSM to calculate predicted airborne holding.Airline Cancels

Airline_created

Airspace Flow Program (AFP) - Actual

Airspace Flow Program (AFP) - Proposed

Alert

Alerted Elements ETMS Elements over which the amount of air traffic is projected to exceed a pre-defined threshold. ANTICIPATED AVERAGE DELAY: 91

An advisory field that lists the proposed cumulative arrival time range covered by the program.

An advisory field that lists the proposed cumulative FCA entry time range covered by the program.

ANTICIPATED GDP CNX PERIOD: An advisory field that lists the time range of flights that will be purged by the cancellation.ANTICIPATED MAXIMUM DELAY: 365

Status assigned to a flight for which a DZ, UZ, TZ, or TOM message has been received, but has not been completed. The flight is in the air.A reroutes class letting users create reroutes from scratch, from the Coded Departure Routes (CDR) database, or from a combination of both.

ADDITIONAL DEP FACILITIES INCLUDED: Zxx …

An advisory field that lists facilities that have specifically been exempted. This is normally a facility within the scope that has been specified as exempt. This is only included if there are exempt facilities. This field can contain both airports and center codes.

The (Affective Average Delay) is the total delay divided by number of non exempted flights calculated after running a GDP.

Any planned flight that is cancelled by a CDM FX message or SICF substitution message, and that is not reinstated by a CDM FC message received prior to departure.Status assigned to an unscheduled flight that has been created based on a CDM FC or FM message, but is not controlled, filed, active, cancelled, or completed.An Actual AFP Advisory is transmitted when TFM Specialists have implemented an actual AFP. To clearly differentiate an actual versus proposed program it should be noted that the term “proposed” and “anticipated”, which are utilized in the proposed Advisory, are omitted from the actual Advisory.A Proposed AFP Advisory is transmitted when TFM Specialists are considering an AFP. To clearly differentiate a proposed versus actual program many of the labels within this Advisory contain the words “proposed” or “anticipated” which are not contained in the actual GDP Advisory.

Airspace Flow Program (AFP) Cancel - Actual

An actual AFP Cancel Advisory is transmitted when TFM Specialists have implemented the cancellation of an actual AFP. To clearly differentiate an actual versus proposed cancellation, it should be noted that the terms “proposed” and “anticipated”, which are utilized in the proposed Advisory, are omitted from the actual Advisory.

Airspace Flow Program (AFP) Cancel - Proposed

A Proposed AFP Cancel Advisory is transmitted when TFM Specialists are considering canceling an AFP. To clearly differentiate a “proposed” versus “actual” cancellation many of the labels within this Advisory contain the words “proposed” or ‘anticipated” which are not contained in the actual GDP Cancel Advisory.Indicates area of concern to traffic management. It occurs when the TSD software projects that the amount of air traffic will exceed a pre-defined threshold for a given element.

An advisory field that lists the anticipated average delay for the proposed program. Will not be listed for GDPs with a “Delay Assignment Mode” of GAAP.

ANTICIPATED CUMULATIVE PROGRAM PERIOD:ANTICIPATED CUMULATIVE PROGRAM PERIOD:

An advisory field that lists the anticipated maximum delay for the proposed program. Will not be listed for GDPs with a “Delay Assignment Mode” of GAAP.


ANTICIPATED POPUP FACTOR:

ANTICIPATED PROGRAM RATE:

ARRIVALS ESTIMATED FOR: An advisory field that lists the proposed airport arrival time range covered by the program event.Auto-Delay Algorithm

BlanketBlanket (BLKT) - Actual

Blanket (BLKT) - Proposed

Cancelled

Cancels

Cancels that Flew Any airline-cancelled flight that operates without first being reinstated by an FC message.Capacity The demand threshold at an airport, sector, or fix. When exceeded by a projected demand, causes an alert status.

FAA documentation for communications requirements between CDM members and ETMS.

CDM Participant

Completed

CompressionControlled Status assigned to a flight for which an EDCT has been received, but is not active, cancelled, or completed.CTL ELEMENT: An advisory field that lists the identifier of the airport for which the Advisory is being issued.Data Block

An advisory field that lists the anticipated hourly popup factor at which the program was modeled. If all hours of the program utilized the same popup factor only a single value will be present. If a popup factor of zero was used, the entire line will be omitted.An advisory field that lists the anticipated hourly arrival rate at which the program was modeled. If all hours of the program utilize the same rate only a single value will be present.

ANTICIPATED TOTAL, MAXIMUM, AVERAGE DELAYS:

An advisory field that lists the probability the GS will be extended as manually selected by the ATCSCC specialist. LOW, MEDIUM, or HIGH

An FSM algorithm used in the set up for Compression, which takes into account the Earliest Runway Time of Arrival (ERTA).Used in FSM the blanket adjustment of a GDP that is already in place. A blanket reduces or increases delay times, based on a user specified value, without consideration of the airport rate.An actual GDP Blanket Advisory is transmitted when TFM Specialists are considering a blanket adjustment to a GDP. To clearly differentiate an actual versus proposed blanket it should be noted that the term “proposed” and “anticipated”, which are utilized in the proposed Advisory, are omitted from the actual Advisory.A proposed GDP Blanket Advisory is transmitted when TFM Specialists are considering a blanket adjustment to a GDP. To clearly differentiate a proposed versus actual blanket it should be noted that many of the labels within this Advisory contain the words “proposed” or “anticipated” which are not contained in the actual GDP Blanket Advisory.

CANADIAN DEP ARPTS INCLUDED: Cxxxx …

Lists Canadian departure airports that are included in the program. If no Canadian airport is included in the GDP then the only listed value will be “NONE”. Status assigned to a flight that has been airline cancelled, time out cancelled by ETMS, or cancelled by an RS or RZ message received from the Host, and that has not been reinstated by an FC message or by receipt of any message indicating the flight is active. Any planned flight that is airline cancelled, or time out cancelled by ETMS, or cancelled by an RS or RZ message received from the NAS Host.

CDM Message Protocol

A subset of NAS Users who participates in the CDM process by submitting schedule data and substitutions to the ETMS system.Status assigned to a flight for which an AZ message has been received from Host. In the absence of an AZ message, flight status may be changed to completed if the current time exceeds the ETA by a specified tolerance.

The compression of an initial or revised AFP or GDP. A compression reallocates slots which are open due to flight cancellations or delays. Compressions do not create new slots, but simply reallocate existing slots.

A collection of flight information for each aircraft that can be displayed on the TSD. It includes the aircraft call sign, altitude, aircraft type, number of minutes to arrival, and the groundspeed.


Data Quality

Delay Advisor

DELAY ASSIGNMENT MODE:

DELAY LIMIT: 1234

Demand Data

DEP SCOPE: [distance] or [(keyword) Zxx …]

Dep. Date Date of actual departureDiversion Recovery A web based application that allows users to prioritize diverted flights so that the fligth does not incur additional delay.

Dynamic List

Effective AAR AAR minus GA Factor.Element

Element Name

Element Type Identifies a class of NAS elements displayed on the TSD (for example, sector, fix, and airport). ELEMENT TYPE: APT An advisory field that lists the type of element for which the Advisory is being issued.En Route Sector Capacity

ENTRY ESTIMATED FOR: An advisory field that lists the proposed FCA entry time range covered by the program event.Examined Flights

Exclude_and_Exempted Flight

Excluded Flight

EXEMPT DEP FACILITIES: Zxx …

Exploder Lists Group email addresses for contacting interested CDM stakeholders.

A reference to the accuracy of the flight data submitted to ETMS from the air carriers, and how that data influences perceived demand.A tool that provides access to the Ground Time Predictor (GTP), a system that predicts flight departures based on historical data. An advisory field that lists the delay assignment mode that will be used to assign delays to pop-up flights. DAS or GAAP.

DELAY ASSIGNMENT TABLE APPLIES TO: Zxx

An advisory field that indicates the delay limit that will be applied to popup flights during a program with a “Delay Assignment Mode” of GAAP. Will not be listed for GDPs with a “Delay Assignment Mode” of GAAP.An advisory field that lists the anticipated maximum delay for the proposed program. Will not be listed for GDPs with a “Delay Assignment Mode” of GAAP.Figures representing the amounts of air traffic for airports, sectors, or fixes. They can be illustrated on the TSD in the form of either charts or reports. Demands are defined as the numbers of arrivals and departures at an airport, the number of flights in a sector at the same time, or the number of flights crossing a fix. An advisory field that lists either the mileage for distance based programs or tier keyword for center based programs. In the case of a keyword, the actual centers that are defined by that keyword will be listed.

a function supported by the Select Flights dialog box that enables you to reorder flight sets and to move or copy text from one text field to another.

A named NAS facility or airspace component that can be displayed on the TSD. Examples are sectors, airports, fixes, and airways. The FAA name used to identify a NAS element on the TSD. For instance, BWI is the element name of the Baltimore Washington National Airport.

Each sector has a predetermined capacity of aircraft called a MAP (Monitor Alert Parameter) number. This number is a function of the average flight time through the sector. Each sector has a radar controller and radar associate position and may have a coordinator position as well.

Flights predicted to arrive at, depart from, or traverse any element being examined during the time range currently selected on the alerts time bar. A flight whose ETA is later than the program start time, is excluded from the program, and meets program exemption criteria such as exempt airport, departure time, or status.A flight that does not meets the criteria of being included in a GDP. These criteria include factors such as the flights IGTA – taxi being outside the program start/end time, affix, and removal status.An advisory field that lists Canadian departure airports that are included in the program. If no Canadian airport is included in the GDP then the only listed value will be “NONE”.


FAA User

Filed

Fix–Radial–Distance

Flight Any planned or actual operation of an aircraft involving a single takeoff and a single landing.Flight Data Update The time at which flight icons disappear from the TSD display and reappear in their newly reported positions. Flight Icon

Flight that Flew Any flight that operated, as indicated by receipt of a DZ, UZ or AZ message from the NAS Host.Floor_Time

FLT INCL: ALL CONTIGUOUS US DEP

An advisory field for programs within Canada. The same rules as line group 10 apply.

Ground Delay Program (GDP) - Actual

Ground Delay Program (GDP) - Proposed

A traffic manager or other member of the FAA that uses ETMS/FSM. This also includes other ATC service providers, such as Nav Canada, who make use of ETMS/FSM.Status assigned to a flight for which a flight plan has been filed (FZ message received), but is not controlled, active, cancelled, or completed. A fix defined by reference to a navaid. The fix location is determined by following the given heading (radial) from the given navaid (fix) for the given distance.

TSD Flight Icon, Either of four graphic representations of flights. Airplane icons look like swept-wing airplanes and represent flights either when you have zoomed in beyond a certain point or when you have specified the icon for a particular flight set. Dot icons are smaller and appear only when you have unzoomed to a certain point. Heavy icons look like wedges and represent heavy aircraft when the automatic icon has been specified for a flight set. Prop icons look like straight-wing airplanes and represent prop aircraft.

The Floor_Time of an open slot is the ETA of its associated flight, or 9999 if its associated flight is cancelled. This results in open slots associated with cancelled flights being processed first.An advisory field that indicates specific categories of flights included in the program. Typically, all flights are included but can include specific lines defining Jets Only, Props Only, Fix Specific, or Carrier Specific program. Multiple lines can be listed to fully define the program.

FLT INCL: CONTIGUOUS US DEP CARRIER xxx ONLY [AND]

A “CDM Ground Delay Program” Advisory is transmitted when an airport based TMI is being implemented. To clearly differentiate a actual versus proposed program the terms “proposed” and “anticipated”, which are utilized in throughout the proposed Advisory are omitted from the actual Advisory.A “CDM Proposed Ground Delay Program” Advisory is transmitted when the implementation of an airport based TMI is being considered. To clearly differentiate a proposed versus actual program many of the labels within this Advisory contain the words “proposed” or “anticipated” which are not contained in the Actual GDP Advisory.

Ground Delay Program (GDP) / Airspace Flow Program (AFP) Compression - Actual

An actual GDP/AFP Compression Advisory is transmitted when TFM Specialists issue a compression for a GDP or AFP. To clearly differentiate an actual versus proposed program cancellation it should be noted that the term “proposed” and “anticipated”, which are utilized in the proposed Advisory, are omitted from the actual Advisory.

Ground Delay Program (GDP) / Airspace Flow Program (AFP) Compression - Proposed

A proposed GDP/AFP Compression Advisory is transmitted when TFM Specialists are considering compression a GDP or AFP. To clearly differentiate a proposed versus actual compression it should be noted that many of the labels within this Advisory contain the words “proposed” or “anticipated” which are not contained in the actual GDP/AFP Compression Advisory.

Ground Delay Program (GDP) Cancel - Actual

An actual GDP Cancel Advisory is transmitted when TFM Specialists have implemented the cancellation of an actual GDP. To clearly differentiate an actual versus proposed cancellation, it should be noted that the terms “proposed” and “anticipated”, which are utilized in the proposed Advisory, are omitted from the actual Advisory.


Ground Stop (GS) - Actual

Ground Stop (GS) - Proposed

Ground Stop (GS) Cancel - Actual

Ground Stop (GS) Cancel - Proposed

Index FDB Flight Index (assigned by ETMS)

Initial ProgramLead Lines

Monitor Alert This function displays and enables analysis of the airports, sectors, and fixes on alert status. Moving FEA/FCA

Msg. Arriv. Arrival time provided in the message.Msg. Depart. Departure time provided in the message.Msg. Time Date/time message received.Msg. Type Code for the message type (see Flight History Message Types)Multi-Taxi Many aircraft trying to taxi at once, creating congestion.NAS User

Ground Delay Program (GDP) Cancel - Proposed

A Proposed GDP Cancel Advisory is transmitted when TFM Specialists are considering canceling a GDP. To clearly differentiate a “proposed” versus “actual” cancellation many of the labels within this Advisory contain the words “proposed” or ‘anticipated” which are not contained in the actual GDP Cancel Advisory.

An actual GS Advisory is transmitted when TFM Specialists are considering implementing a GS. To clearly differentiate an actual versus proposed GS it should be noted that the term “proposed” and “anticipated”, which are utilized in the proposed Advisory, are omitted from the actual Advisory.A proposed GS Advisory is transmitted when TFM Specialists are considering implementing a GS. To clearly differentiate a proposed versus actual cancellation it should be noted that many of the labels within this Advisory contain the words “proposed” or “anticipated” which are not contained in the actual GS Advisory.An actual GS Cancel Advisory is transmitted when TFM Specialists want to cancel a GS. To clearly differentiate an actual versus proposed program cancellation it should be noted that the term “proposed” and “anticipated”, which are utilized in the proposed Advisory, are omitted from the actual Advisory.

A proposed GS Cancellation Advisory is transmitted when TFM Specialists are evaluating the cancellation of an actual GS. To clearly differentiate a proposed versus actual cancellation it should be noted that many of the labels within this Advisory contain the words “proposed” or “anticipated” which are not contained in the actual GS Cancel Advisory.

The initial issuance of an AFP or GDP to manage flights arriving at an airport or FCA. Slot allocation is based principally on arrival at the controlling element.Dotted lines leading away from the noses of the aircraft icons on the TSD. They indicate where the flights will be either in a certain period of time or at a certain distance from their current positions, assuming the flights continue traveling in the same direction and at the same speed.

Shows how the FEA/FCA started and how it moves during the course of the time limit you specified. Contains shadows of the original FEA/FCA representing past and future locations of the FEA/FCA.

An airline, cargo carrier, general aviation (GA) pilot, military, or anyone else who operates aircraft in the National Airspace System (NAS). A NAS User is not required to be a CDM Participant in order to submit substitutions.


National Playbook

The probability the GS will be extended as manually selected by the ATCSCC specialist. LOW, MEDIUM, or HIGH

Newflight Status assigned to the first message that causes a flight record to be created in the ETMS Flight Database (FDB).

Non-Exempt Flight: (2 types)

Open_Slot:

OVERRIDE AFP:

Pacing Airport

Pathfinder A flight made available and designated to find navigable routes through convective areas of weather.Pathfinder Tool A web based application that allows users to identify flights willing to act as pathfinders.peak demand

Planned Flight

Plus_Time:

Pop-up

Power Run

A traffic management tool developed to give the ATCSCC, other FAA facilities, and system users a common product for various route scenarios. The National Playbook contains the most common scenarios that occur during each thunderstorm season and each includes the resource or flow impacted, facilities included, and specific routes for each facility involved. Each scenario in the National Playbook includes a graphical presentation and has been validated by the individual facilities involved in that scenario. National Playbook routes are only used after collaboration and coordination between the ATCSCC Severe Weather Unit and the Traffic Management Unit(s) of affected air traffic facilities.

NEW TOTAL, MAXIMUM, AVERAGE DELAYS:

Previously Controlled: Have second priority behind exempt flights during RBS++. These flights are ordered by their ASLOT.Non-previously Controlled: Have third priority during RBS++. These flights are ordered by IGTA, but may have to sort by ASLOT.

An open slot is created when a flight is cancelled or delayed, so all open slots have one and only one associated flight. This association never changes. An open slot due to delay (at least one of the delay flags is set in the flight record) is created if its associated flight’s ETA is later than where the open slot will be displayed on the timeline, which is at either (1) Wheel_Arrival_Time if the flight doesn’t have a slot, or (2) its slot time if the flight has a slot.

Indicates this is an Override AFP, which assumes control of all flights in the AFP even if they are controlled by other AFPs. Only listed when YES, omitted when NO.Due to their location and service as a hub to more than one airline, some airports (termed "pacing airports") can have a detrimental impact throughout the NAS when their operations are impacted by weather or non-weather events. The FAA has determined that the following are pacing airports: New York LaGuardia (LGA), Newark International (EWR), Chicago O'Hare International (ORD), San Francisco International (SFO), Boston Logan International (BOS), Philadelphia International (PHL), New York John F. Kennedy International (JFK), and Atlanta Hartsfield International (ATL).

The greatest number of flights projected to be within a sector at any instant during a given time period. Also called peak load. Any flight that is in the OAG schedule, or that is created by a CDM FC or FM message received from an airline, or that is created by an FZ message received from the NAS Host.Value entered by the FSM user when implementing a GDP. The Plus_Time determines the buffer past the data time in which flights will not be delayed. This is to insure that flights that are already boarding are not issued a delay

A flight involved in a GDP that was not scheduled prior to the start of the program. Considered undesirable excess demand, pop-up flights are not handled the same as scheduled flights in a GDP. A Tab in the GDT Setup component which allows you to model various scenarios to help evaluate what parameters are most favorable.


PROBABILITY OF EXTENSION:

Purge The cancellation of a TMI. The purge process removes from ETMS all TMIs currently in place for a specific element.

REASON: reason / explanation text

REMARKS: remarks text An advisory field used to list free text remarks as entered by the ATCSCC specialist.Revised Program

Schedule Accuracy

schedule database

Scheduled

Scheduled Flight Any flight contained in the OAG schedule, as indicated by presence of an FS message in the flight's message history.

Sector

Slot

Slot ID A time slot assigned during ground delay substitution/cancellationSlot List

Slot_Hold

Slot_Time:

Subs Data from the EDCT Sub Show command, showing you the status of Substitution processing (SI) for all airports

PREVIOUS TOTAL, MAXIMUM, AVERAGE DELAYS:

An advisory field that lists the total, maximum, and average delay after the GS. This will not be listed for GS during a GDP with a “Delay Assignment Mode” of GAAP.

An advisory field that indicates the GS will be extended as entered by the ATCSCC specialist. LOW, MEDIUM, or HIGH

An advisory field that indicates the reason and explanation for the program as entered by the ATCSCC specialist. The reason can be “weather”, “volume”, “runway”, “equipment”, or “other”. The explanation is free text.

The revision of an AFP or GDP that is already in place. This revision can be simply to change the rate, scope, or a modification in start / end times which extend or reduce the time frame of the program. Revisions replace existing slots with new slots during the time frame of the revision. The sum of the absolute values of the difference of (actual departure time estimated departure time) for each flight divided by the number of valid flights.Database of airline schedule information based on information received from the Official Airline Guide (OAG). The schedule database is updated with new OAG data every two weeks. Status assigned to a flight that has been created from OAG data, but is not controlled, filed, active, cancelled, or completed.

A volume of air space corresponding to one air traffic control area of responsibility. There are many sectors within an ARTCC. Generally, one team of air traffic controllers is responsible for each sector. Arrival slots are created by FSM for airports in a GDP. The number of slots created is based on the AAR, and each slot is identified by an alphanumeric label.

A modified FADT List. In addition to the information provided by the FADT list the slot list includes the slot ID flight class and information about exempted flights.Slot_Hold is a status that is applied to an Open_Slot so that it is not filled by the compression process. A NAS user normally holds slots when they intend to use a slot but have not yet determined which specific flight will be moved to fill that slot. A slot can also be held by ETMS when a flight is timeout or NAS cancelledThe time position of airport capacity allocated to a NAS user. This is the time that the users flight should target for its arrival. The Slot_Time is used to create the Slot Identification, which is a combination of the arrival airport, the slot time, and a suffix to differentiate multiple slots issues for the same minute.


Time Out Cancels (TOC)

Time Type

Traffic Management InitiativeTraining Facilitation Sub-Team

Undeclared Flight

Virtual slot time: FSM paramater based on 15-minute effective AAR. The smallest slot time increment is one minute.Wheel_Arrival_Time:

Any flight that is time out cancelled by ETMS, as indicated by presence of a toc message in the flight's message history. ETMS time out cancels a flight if it has not departed within 90 minutes of its ETD, or if it has not departed within 10 minutes of its OAG-scheduled departure time and no other CDM or NAS messages pertaining to the flight have been received. Once a flight has been time out cancelled, it is counted in this statistic even if it subsequently operates.

Runw indicates that the message departure and arrival times are runway times provided in a CDM message. Gate indicates that the message departure and arrival times are gate times provided in a CDM message. UZ indicates that the message departure time is the coordinated fix (ARTCC crossing) time provided in a UZ message.These terms refer to the domain of all FSM events (Initial, Revision, Compression, Blanket, Ground Stop and Purge) whether they are for an airport (GDP) or FCA (AFP).The CDM Joint Training Team Objective is to create and provide Information Sharing and Systemic Learning Opportunities

Any unscheduled flight that operates without a CDM FC or FM message submitted by the airline prior to departure. The CDM protocol expects an airline to "declare" its plans by submitting a CDM message to create a flight not contained in the OAG schedule. A flight without OAG or CDM data is considered to be undeclared even if an FZ message has been received from the NAS Host

USER UPDATES MUST BE RECEIVED BY: 27/1500Z

An advisory field that indicates the time the ATCSCC specialist has requested that NAS user schedule changes be submitted by in order for these changes to be incorporated into the GDP.

The arrival time used for rationing airport capacity. The IGTA is set by ETMS based on the first information received for that flight. The IGTA will be set to SGTA, LGTA, or PGTA depending on which is the first value receive by ETMS. IGTA is then adjusted for taxi-in time to determine the Wheel_Arrival_Time.

Acronym Term Definition

ZAB Albuquerque ARTCCZAN Anchorage ARTCCZAU Chicago ARTCCZBW Boston ARTCCZDC Washington ARTCCZDV Denver ARTCCZFW Fort Worth ARTCCZHN Honolulu ARTCCZHU Houston ARTCCZID Indianapolis ARTCCZJX Jacksonville ARTCCZKC Kansas City ARTCCZLA Los Angeles ARTCCZLC Salt Lake City ARTCCZMA Miami ARTCCZME Memphis ARTCCZMP Minneapolis ARTCCZNY New York City ARTCCZOA Oakland ARTCCZOB Cleveland ARTCCZSE Seattle ARTCCZSU San Juan CERAPZTL Atlanta ARTCCZUA Guam CERAPCZE Edmonton ACC, CanadaCZM Monkton ACC, CanadaCZQ Gander ACC, CanadaCZU Montreal ACC, CanadaCZV Vancouver ACC, CanadaCZW Winnipeg ACC, CanadaCZY Toronto ACC, CanadaZMC Mexico ACC, MexicoZMO Montery ACC, MexicoZMR Merida ACC, MexicoZMZ Mazatlan ACC, MexicoA11 Anchorage TRACON A80 North Georgia TRACONA90 Boston TRACONC90 Chicago TRACOND01 Denver TRACON D10 Dallas-Forth Worth TRACOND21 Detroit TRACONE10 High Desert TRACON HCF Honolulu Control Facility I90 Houston TRACON K90 Cape TRACON L30 Las Vegas TRACON M98 Minneapolis TRACON

N90 New York TRACONNCT Northern California TRACONNMM Meridian NAS P31 Pensacola TRACON P50 Phoenix TRACONP80 Portland TRACON PCT Potomac TRACONR90 Omaha TRACON RME Rome/Griffiss RAPCON S46 Seattle TRACONS56 Salt Lake City TRACON SCT Southern Cal TRACONT75 St. Louis TRACONU90 Tucson TRACON Y90 Yankee TRACON

Source

Opsnet ConfigOpsnet ConfigOpsnet ConfigOpsnet ConfigOpsnet ConfigOpsnet ConfigOpsnet ConfigTFM FAOpsnet ConfigOpsnet ConfigOpsnet ConfigOpsnet ConfigOpsnet ConfigOpsnet ConfigOpsnet ConfigOpsnet ConfigOpsnet ConfigOpsnet ConfigOpsnet ConfigOpsnet ConfigOpsnet ConfigOpsnet ConfigOpsnet ConfigTFM FAOpsnet ConfigOpsnet ConfigOpsnet ConfigOpsnet ConfigOpsnet ConfigOpsnet ConfigOpsnet ConfigOpsnet ConfigOpsnet ConfigOpsnet ConfigOpsnet ConfigOpsnet ConfigOpsnet ConfigOpsnet ConfigOpsnet ConfigOpsnet ConfigOpsnet ConfigOpsnet ConfigOpsnet ConfigOpsnet ConfigOpsnet ConfigOpsnet ConfigOpsnet ConfigOpsnet Config

Opsnet ConfigOpsnet ConfigOpsnet ConfigOpsnet ConfigOpsnet ConfigOpsnet ConfigOpsnet ConfigOpsnet ConfigOpsnet ConfigOpsnet ConfigOpsnet ConfigOpsnet ConfigOpsnet ConfigOpsnet ConfigOpsnet Config

Acronym Term DefinitionA/FD AC ADDS ADF ADS-B AFCS AFM AHRS AIM ALD ALS ANP AOCC ARSA ASDE-X ASRS ATCRBS AWOSAWSS AWW BC C/A CARTS

CAT CD CDI CTAF CVFP DME Distance Measuring Equipment DME/N DME/P DRT DVA DVFR EFAS EPE FA FAF FAWP FB FDC FIS FISDL FLIP FMS FMSP FO GNSS

Airport/Facility Directory Advisory Circular Aviation Digital Data Service Automatic Direction Finder Automatic Dependent Surveillance-Broadcast Automatic Flight Control System Aircraft Flight Manual Attitude Heading Reference System Aeronautical Information Manual Available Landing Distance Approach Light Systems Actual Navigation Performance Airline Operations Control Center Airport Radar Service Area Airport Surface Detection Equipment - Model X Aviation Safety Reporting System Air Traffic Control Radar Beacon System Automated Weather Observing System Automated Weather Sensor System Severe Weather Forecast Alert Back Course Coarse Acquisition Common Automated Radar Terminal System (ARTS) (to include ARTS IIIE and ARTS IIE) Clear Air Turbulence Controller Display Course Deviation Indicator Common Traffic Advisory Frequency Charted Visual Flight Procedure

Standard DME Precision DME Diversion Recovery Tool Diverse Vector Area Defense Visual Flight Rules En Route Flight Advisory Service Estimate of Position Error Area Forecast Final Approach Fix Final Approach Waypoint Fly-by Flight Data Center Flight Information Service Flight Information Services Data Link Flight Information Publication Flight Management System Flight Management System Procedure Fly-over Global Navigation Satellite System

GPS GSD HIWAS Hz IAF IAP IAWP IF ILS/PRM

IM IMC IOC kHz LAAS LDA LDA/PRM

LLWAS NE

LLWAS-RS

LNAV LOP LORAN LPV LZ MAP MAWP MDA MEA MEARTS MHz MRA MSL MWO NACO NSA NTSB OM P/CG PA PAR PAR Preferred Arrival Route PRM RA RAA RAIM RAIS RCO RNAV

Global Positioning System Geographical Situation Display Hazardous Inflight Weather Advisory Service Hertz Initial Approach Fix Instrument Approach Procedure Initial Approach Waypoint Intermediate Fix Instrument Landing System/Precision Runway Monitor

Inner Marker Instrument Meteorological Conditions Initial Operational Capability Kilohertz Local Area Augmentation System Localizer Type Directional Aid Localizer Type Directional Aid/Precision Runway Monitor

Low Level Wind Shear Alert System Network Expansion

Low Level Wind Shear Alert System Relocation/Sustainment Lateral Navigation Line-of-position Long Range Navigation System Localizer Performance with Vertical Guidance Landing Zone Missed Approach Point Missed Approach Waypoint Minimum Descent Altitude Minimum En Route Altitude Micro En Route Automated Radar Tracking System Megahertz Minimum Reception Altitude Mean Sea Level Meteorological Watch Office National Aeronautical Charting Office National Security Area National Transportation Safety Board Outer Marker Pilot/Controller Glossary Precision Approach Precision Approach Radar

Precision Runway Monitor Resolution Advisory Remote Advisory Airport Receiver Autonomous Integrity Monitoring Remote Airport Information Service Remote Communications Outlet Area Navigation

RNP RPAT SFR SIAP SMGCS SPC TA TAA TAC TD TDLS Tower Data Link System TDZL TEC TIS TIS-B TRSA TSO TWEB TWIB UA UAV UHF USCG VHF VIP VMC VNAV VOT WA WAAS WFO WMO WMSC WP WS WSO WSP WST WW ADIZ Air Defense Identification ZoneAFSS Automated Flight Service StationAIRMET Airman’s Meteorological Advisory/InformationARO Airport Reservations OfficeATIS Automated Terminal Information ServiceCFR Code of Federal RegulationsCPDLC Controller Pilot Data Link CommunicationsCVRS Computerized Voice Reservation SystemCWA Center Weather AdvisoryDOD Department of DefenseFAA Federal Aviation AdministrationIR IFR Military Training Route

Required Navigation Performance RNP Parallel Approach Runway Transitions Special Flight Rules Standard Instrument Approach Procedure Surface Movement Guidance Control System Storm Prediction Center Traffic Advisory Terminal Arrival Area Terminal Area Chart Time Difference

Touchdown Zone Lights Tower En Route Control Traffic Information Service Traffic Information Service-Broadcast Terminal Radar Service Area Technical Standard Order Transcribed Weather Broadcast Terminal Weather Information for Pilots System Unmanned Aircraft Unmanned Aerial Vehicle Ultrahigh Frequency United States Coast Guard Very High Frequency Video Integrator Processor Visual Meteorological Conditions Vertical Navigation VOR Test Facility AIRMET Wide Area Augmentation System Weather Forecast Office World Meteorological Organization Weather Message Switching Center Waypoint SIGMET Weather Service Office Weather System Processor Convective Significant Meteorological Information Severe Weather Watch Bulletin

LLWAS Low Level Wind Shear Alert SystemMTR Military Training RouteNASA National Aeronautics and Space AdministrationNEXRAD Next Generation Weather RadarNOAA National Oceanic and Atmospheric AdministrationNWS National Weather ServicePIREPSID

SIGMET Significant Meteorological InformationSTARS Standard Terminal Automation Replacement SystemTAS True Air speedTCAS Traffic Alert and Collision Avoidance SystemVR VFR Military Training RouteWMSCR Weather Message Switching Center ReplacementMOA Military Operations Area

Pilot Weather Report Standard Instrument Departure (now Departure Procedure – DP)

military operations area and is a type of Special Use Airspace reserved for military activities

SourceAIMAIMAIMAIMAIMAIMAIMAIMAIMAIMAIMAIMAIMAIMAIMAIMAIMAIMAIMAIMAIMAIMAIM

AIMAIMAIMAIMAIMAIMAIMAIMAIMAIMAIMAIMAIMAIMAIMAIMAIMAIMAIMAIMAIMAIMAIMAIMAIM

AIMAIMAIMAIMAIMAIMAIMAIMAIM

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AIM

AIM

AIMAIMAIMAIMAIMAIMAIMAIMAIMAIMAIMAIMAIMAIMAIMAIMAIMAIMAIMAIMAIMAIMAIMAIMAIMAIMAIMAIMAIM

AIMAIMAIMAIMAIMAIMAIMAIMAIMAIMAIMAIMAIMAIMAIMAIMAIMAIMAIMAIMAIMAIMAIMAIMAIMAIMAIMAIMAIMAIMAIMAIMAIMAIMAIMAIMAIMAIMAIMTFM FA, AIMTFM FA, AIMTFM FA, AIMTFM FA, AIMTFM FA, AIMTFM FA, AIMTFM FA, AIMTFM FA, AIMTFM FA, AIMTFM FA, AIMTFM FA, AIMTFM FA, AIM

TFM FA, AIMTFM FA, AIMTFM FA, AIMTFM FA, AIMTFM FA, AIMTFM FA, AIMTFM FA, AIMTFM FA, AIM

TFM FA, AIMTFM FA, AIMTFM FA, AIMTFM FA, AIMTFM FA, AIMTFM FA, AIMETMS, AIM

adpt Control Times updated by adaptive compression

ADZY Advisory Message Acronym

AETE Actual Estimated Time En route

AF Air Facility Air FacilityASPM Aviation System Performance Metrics

ATA Actual wheels on Arrival TimeCOMP Compression and GDP)

DME

Volpe

NFIT

TCNTR Traversed Center

CA_DIF Difference of Arrival Times

CD_DIF

OA_DIF Differernce of Arrival Times

ORTA Original time of arrival, formerly named OGTA

ORTD

SA_DIF Difference of Arrival Times

SD_DIF

TGTA Gate Time of Arrival

TGTD Gate Time of Departure

TTM Total Traffic Management

SC Shift Coordinator

Control Times updated by adaptive compression

An advisory is a message that is disseminated electronically by the ATCSCC or ARTCC. It contains information pertaining to the National Airspace System.

Actual Estimated Time En route

Aviation System Performance Metrics

A command that displays the distance in nautical miles between specified points on the TSD and draws a line connecting the points.

Volpe Center, Cambridge, MA

Part of the Department of Transportation (DOT), responsible for developing and managing ETMS systems.

National Flow Integration Team

Refers to the difference between ARTA and CTA, with a designator showing the status of the comparison.

Difference of Departure Times

Refers to the difference between ARTD and CTD, with a designator showing the status of the comparison. Refers to the difference between ARTA and ORTA, with a designator showing the status of the comparison.

Original Runway Time of Arrival Original Runway Time of Departure

Original time of departure, formerly named OGTDThe difference between AGTA and SGTA, with a designator showing the status of the comparison.

Difference of Departure Times

The difference between AGTD and SGTD, with a designator showing the status of the comparison. Time is based on ETMS Total Traffic Model (TTM). Time is based on ETMS Total Traffic Model (TTM). TTM encompasses all aspects of traffic management.One who coordinates with other sectors during their shift.

CDM Dataquality

fly.faa.gov

FSM Help Glossary

TFM FA

POETFSM Help GlossaryETMS

ETMS

McAfee

McAfee

RMTETMS

ETMS

ETMS

ETMS

ETMS

ETMS

ETMS

ETMS

ETMS

TFM FA

TFM FA

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