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A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

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Acronym

Definition

Explanation

AA “ATC Activated”, Actual Airborne FUM status
AAI Airport Authority Interface  
a/c Aircraft  

ACARS

Aircraft Communications Addressing and Reporting System

 

ACC

Area Control Centre

 

A-CDM Airport Collaborative Decision Making  
ACIS Airport CDM Information Sharing  
ACISP Airport CDM Information Sharing Platform  
ACH ATC flight plan Change Message  
ACK Acknowledgement message  

ACZT

Actual Commencement of De-icing Time The time when de-icing operations on an aircraft starts
ADB Actual Deicing Begin A-CDM@FRA process status
ADE Actual Deicing End A-CDM@FRA process status

ADEP

Aerodrome of Departure

 

ADES

Aerodrome of Destination

 

ADEXP

ATS Data Exchange Presentation

ADEXP provides a format for use primarily in on-line, computer to computer message exchange. ADEXP is a format, not a protocol.

ADIT

Actual De-icing Time

Metric AEZT – ACZT

ADP
ATC-DPI sended to NMOC A-CDM@FRA process status

A-DPI

ATC-Departure Planning Information message

DPI message sent by the CDM Airport to the NMOC (ETFMS) notifying the TTOT between ATC time of pre-departure sequencing and ATOT

AEBT
Actual End Boarding Time
End of Boarding process

AEGT

Actual End of Ground handling Time

The time when ground handling  on an aircraft ends, can be equal to ARDT (TBD locally)

AEZT

Actual End of De-icing Time

The time when de-icing operations on an aircraft end

AFTN

Aeronautical Fixed Telecommunication Network

 

AGHT

Actual Ground Handling Time

The total duration of the ground handling of the aircraft. Metric ACGT - AEGT

AIBT

Actual In-Block Time

The time that an aircraft arrives in-blocks. (Equivalent to Airline/Handler ATA –Actual Time of Arrival, ACARS = IN).

AIP Aeronautical Information Puplication  

ALDT

Actual Landing Time

The time that an aircraft lands on a runway. (Equivalent to ATC ATA –Actual Time of Arrival = landing, ACARS=ON).

ALU Lining Up A-CDM@FRA process status
ALUT Actual Line Up Time The time that an aircraft receives its line up clearance.

AMAN

Arrival Manager

An arrival flow management tool that optimises the traffic flow nto a TMA and/or runway(s) by calculating TLDT (Target LanDing Time) taking various constraints and preferences into account

ANSP

Air Navigation Service Provider

An organisation responsible for management of flight traffic on behalf of a company, region or country.

AO

Aircraft Operator

A person, organisation or enterprise en aged in or offering to engage in an aircraft operation. (ICAO Doc 4444, Chapter 1)

AOBT

Actual Off-Block Time

Time the aircraft pushes back / vacates the parking position. (Equivalent to Airline / Handlers ATD – Actual Time of Departure & ACARS=OUT)

AOC

Airport Operator Committee

 

AODB Airport Operational Data Base System INFOplus
AORT Actual Off-Block Request Time  
AOT Automatically generated TOBT A-CDM@FRA process status
APR Apron Responsibility Aircraft in the responsibility of Frankfurt Apron.
ARCID Aircraft Identification  
ARCTYP Aircraft Type  

ARDT

Actual Ready Time (for Movement)

When the aircraft is ready for start up/push back or taxi immediately after clearance delivery, meeting the requirements set by the TOBT definition.

ARR

Arrival

Inbound flight

ARZT

Actual Ready for De-icing Time

The time when the aircraft is ready to be de-iced

ASAT

Actual Start Up Approval Time

Time that an aircraft receives its start up approval.
Note: the moment the start up approval is given can be in advance of the TSAT

ASBT

Actual Start Boarding Time

Time passengers are entering the bridge or bus to the aircraft

ASGT Actual Start Gate Time Begin of Gate handling

A-SMGCS

Advanced Surface Movement Guidance and Control System

System at airports having a surveillance infrastructure consisting of a Non-Cooperative Surveillance (e.g. SMR, Microwave Sensors, Optical Sensors etc) and Cooperative Surveillance (e.g. Multi-lateration systems)

ASRT

Actual Start Up Request Time

Time the pilot requests start up clearance.

ATBT Actual Taxi Begin Time  

ATC

Air Traffic Control

Service provided by ground-based controllers who direct aircraft on the ground and in the air. This to separate, organise and expedite the flow of air traffic.

ATDF Actual Time over Departure Fix  

ATFCM

Air Traffic Flow and Capacity Management

ATFM extended to the optimisation of traffic patterns and capacity management. Through managing the balance of capacity and demand the aim of ATFCM is to enable flight punctuality and efficiency according to the available resources with the emphasis on optimising the network capacity through Collaborative DecisionMaking process. (NMOC Handbook TFCM_Operating_Procedures_for_FMP_1.0) 

ATFM

Air Traffic Flow Management

A service established with the objective of contributing to a safe, orderly and expeditious flow of air traffic by ensuring that air traffic control capacity is utilised to the maximum extent possible, and that the traffic volume is compatible with the capacities declared by the appropriate Air Traffic Services authority (ICAO Annex 11, Chapter 1)

ATM

Air Traffic Management

Management of the demand for, and the use of airspace

ATOF Actual Time over Departure Fix  

ATOT

Actual Take Off Time

The time that an aircraft takes off from the runway. (Equivalent to ATC ATD–Actual Time of Departure, ACARS = OFF).

ATS

Air Traffic Services

The service provided by Air Traffic Controllers working at airports for the arrival and departure flight phases and in Air Traffic Control Centres for the en route flight phase

ATSP Air Traffic Service Provider  

ATTT

Actual Turn-round Time

Metric AOBT – AIBT

AVDGS Automatic Visual Docking Guidance System Ramp Display

AXIT

Actual Taxi-In Time

Metric AIBT – ALDT

AXOT

Actual Taxi-Out Time

Metric ATOT – AOBT

BA Betriebsanweisung Fraport  
BAFVK Betriebsanweisung Flugverkehrskontrolle  
BAO Betriebsanordnung ATC  
BEST BEtriebSTeuerung Handling System of Lufthansa
BGB Begin of Boarding A-CDM@FRA process status
BGT Begin of Gate Handling A-CDM@FRA process status

CBA

Cost-Benefit Analysis

A formal discipline used to help appraise, or assess, the case for a project or proposal. This is achieved by weighing the total expected costs against the total expected benefits of one or more actions in order to choose the best or most profitable option.

CDAC CDM in Adverse Conditions  
CDB Central Data Base  
CDM Collaborative Decision Making  
CDM
AIRPORT
CDM Airport An airport is considered as a CDM AIRPORT when the Airport CDM Information Sharing, Turn-round process (Milestones Approach) and Variable Taxi Time Calculation Elements are applied at the Airport
CDP
C-DPI sended to NMOC
A-CDM@FRA process status

C-DPI

Cancel – Departure Planning Information message

This message informs the NMOC that previously sent DPI is no longer valid.

CFMU (now called NMOC)  

CHG

Modification message

Standard message sent to NMOC to change flight plan data.

CLR

Flightplan in clearing process

A-CDM@FRA process status

CNL Flight Plan Cancellation Standard message sent to NMOC to cancel flight plan.
COFU Collaborative Management of Flight Updates  
CPDS Collaborative Pre-Departure Sequence  
CSA Common Situational Awareness  
CSA-Tool
System to Input TOBT for AO/GH
 

CTOT

Calculated Take Off Time

A time calculated and issued by the appropriate Central Management unit, as a result of tactical slot allocation, at which a flight is expected to become airborne. (ICAO Doc7030/4 – EUR, Table 7)

CTRP CDM Turn-Round Process  
DAS-FRA
Datenaustauschsystem
System of Lufthansa for internal and external (e.g. Fraport) data exchange

DCL

Departure Clearance (Data link)

 

DCR
Deicing Company Ready
A-CDM@FRA process status
DCS Departure Control System  

DEP

Departure

Outbound flight.

DES De-suspension message  
DFS Deutsche Flugsicherung GmbH German ATC Provider
DGA Digitale Gateansage Self explaining
DGS Docking Guidance System  
DIR Deicing Requested A-CDM@FRA process status
DIV Diverted A-CDM@FRA process status

DLA

Delay message

Standard message sent to NMOC to delay flight plan OBT.

DMAN

Departure Manager

DMAN is a planning system to improve the departure flows at an airport by calculating the Target Take Off Time (TTOT) and Target Start up Approval Time (TSAT) for each flight, taking multiple constraints and preferences into account.

DOP (Bridge-) Driver on Position A-CDM@FRA process status
DPD
De-icing Pad
De-icing pad or other area on the apron for the use of de-icing

DPI

Departure Planning Information message

Message from Airport to NMOC. See also A-DPI, C-DPI, E-DPI, T-DPI

DVA
Deicing Vehicle allocated
A-CDM@FRA process status
DVP
Deicing Vehicle on position
A-CDM@FRA process status

ECZT

Estimated Commencement of De-icing Time

The estimated time when de-icing operations on an aircraft are expected to start.

EDDF Airport Frankfurt Main ICAO Location Indicator

EDIT

Estimated De-icing Time

Metric EEZT – ECZT.

EDP E-DPI sended to NMOC
A-CDM@FRA process status

E-DPI

Early – Departure Planning Information message

First DPI message is sent from -3 hrs and before the T-DPI message by the CDM AIRPORT to the NMOC (ETFMS) notifying the ETOT. Also first DPI sent after ATC flight plan Cancellation.

EET

Estimated Elapsed Time

The estimated time required to proceed from one significant point to another (ICAO).

EEZT

Estimated End of De-icing Time

The estimated time when de-icing operations on an aircraft are expected to end.

EFD Eurocontrol Flight Data Message Delivers the data for the FUM which is established in Stanly_CDM
EGT End of Gate Handling A-CDM@FRA process status

EIBT

Estimated In-Block Time

The estimated time that an aircraft will arrive in-blocks. (Equivalent to Airline/Handler ETA–Estimated Time of Arrival).

ELDT

Estimated Landing Time

The estimated time that an aircraft will touch down on the runway. (Equivalent to ATC ETA–Estimated Time of Arrival = landing).

ENB End of Boarding A-CDM@FRA process status
EOBD
Estimated Off-Block Date
The estimated date at which the aircraft will commence movement associated with departure (ICAO).

EOBT

Estimated Off-Block Time

The estimated time at which the aircraft will start movement associated with departure(ICAO).

ERR Error Message  

ERZT

Estimated Ready for De-icing Time

The estimated time when the aircraft is ex pected to be ready for de-icing operations

ETDF Estimated Time over Departure Fix  

ETFMS

Enhanced Tactical Flow Management System

ETFMS receives radar derived data provided by the Air Navigation Service Providers(ANSPs), position report data provided by the Aircraft Operators and meteorological data. ETFMS uses this data to update the existing data coming from flight plans and flow measures.

ETOF Estimated Time over Fix  

ETOT

Estimated Take Off Time

The estimated take off time taking into account the EOBT plus EXOT.

ETTT

Estimated Turn-round Time

The time estimated by the AO/GH on the day of operation to turn-round a flight taking into account the operational constraints.

Eurocat-C System zur Luftlagedarstellung  

EXIT

Estimated Taxi-In Time

The estimated taxi time between landing and in-block.

EXOT

Estimated Taxi-Out Time

The estimated taxi time between off-block and take off. This estimate includes any delay buffer time at the holding point or remote de-icing prior to take off.

FBO Flughafenbenutzungsordnung Airport User Regulation
FDPS Flight Data Processing System Fraport system used for Airside Operations
FFU Flugfunktion Fraport Flugdatenattribut (Flight data attributes)
FG Functional Group  

FIDS

Flight Information Display System

 

FIR

Flight Information Region

 

FLS

Flight Suspension message

Standard message sent from NMOC to suspend flight plan OBT

FLT Flight  

FMP

Flow Management Position

Provides a vital flow of information from their operational ATC Unit to the NMOC about the current situation within their ACC and the operational situation at the airport.

FPL

Filed Flight Plan

ICAO derived flight plan

FRA Frankfurt Airport IATA 3 Letter Code

FRD

Functional Requirements Document

This document specifies the minimum set of requirements to implement Airport CDM

FSA

First System Activation

 

FUM

Flight Update Message

A message sent from the NMOC to a CDM Airport providing an ELDT, ETO and flight level at the last point of route.

GAT General Air Traffic  
GAT General Aviation Terminal  

GH

Ground Handler

Company responsible for handling of aircraft during turn-round at the airport.

GHD Ground Handler Responsibility Aircraft in the responsibility of ground handler (between On-Block and Off-Block)
GHE Groundhandling End A-CDM@FRA process status

HMI

Human-Machine Interface

The aggregate of means by which people— the users - interact with the system - a particular machine, device, computer program or other complex tools.

HOT Handover to Tower  
HOT
Hold Over Time
 

ICAO

International Civil Aviation Organisation

 

ICP Deicing on Stand A-CDM@FRA process status
ICR Deicing on pad A-CDM@FRA process status
IDF-List Inactiv departure flight-List Internal list of FDPS system

IFPS

Integrated Initial Flight Plan Processing System

A system of the NMOC designed to rationalize the reception, initial processing and distribution of IFR/GAT flight plan data related to IFR flight within the area covered by the participating States. (ICAO Doc 7030/4 – EUR, paragraph 3.1.1 new)

IFR

Instrument Flight Rules

 

KPI

Key Performance Indicator

 

LAN Landed A-CDM@FRA process status

LoA

Letter of Agreement

 

LVP

Low Visibility Procedures

 

MACS Multi Access Control System System for the use of gate and boarding handling
MAP Missed Approach A-CDM@FRA process status
MDI Minimum Departure Interval  
MOT Manually entered TOBT A-CDM@FRA process status

MoU

Memorandum of Understanding

 

MST Milestone  

MTTT

Minimum Turn-round Time

The minimum turn-round time agreed with an AO/GH for a specified flight or aircraft type.

MVT

Movement message

Standardized IATA format message, sent via SITA to destination airport, AO and other recipients, containing departure data of a flight

NOI Deicing cancelled (no Deicing) A-CDM@FRA process status
NMOC
Network Manager Operations Centre (formerly known as CFMU)
Network Manager Operations Centre (NMOC), Brussels – A Central Management Unit operated by EUROCONTROL. (ICAO Doc7754, Volume I, Part V.III, paragraph 3)
OAT Operational Air Traffic  
OBR Off-Block Request A-CDM@FRA process status

OCD

Operational Concept Document

 

OFB Off-Block A-CDM@FRA process status
OFR Off-Block for Remote Holding A-CDM@FRA process status
ONB On Block A-CDM@FRA process status
ORGN Originator  

PAX

Passengers

 

PBG Push Back Given A-CDM@FRA process status
PBR Push Back Requested A-CDM@FRA process status
PIC Pilot In Command  
PL Platzlotse Air Traffic Controller on the Tower

PMP

Project Management Plan

 

POS Parkingposition  
RDY Aircraft Ready A-CDM@FRA process status

REA

Ready message

 

REG Aircraft Registration  

REJ

Rejection message

 

RFO Remote Off Block A-CDM@FRA process status

RFP

Replacement Flight Plan

 

RIBT Remote In-Block Time The time that an aircraft arrives at its parking position for remote holding.
RMH Remote Holding  
RMS
Ressource Management System
Fraport Ressource Management System for allocation of Positions and Gates
RNB Remote On Block A-CDM@FRA process status
ROBT Remote Off-Block Time The time that an aircraft leaves its parking position for remote holding.
RPL Repetitive ATC flight plan  
RTOT Requested Take Off Time Time the AO wants to depart (TOBT + EXOT)
RTS
Return to Stand
 

RWY

Runway

 

SAM

Slot Allocation Message

 

SBY Standby A-CDM@FRA process status
SCZT Sequenced Commencement of Deicing Time Time calculated by sequencer system
SEQ Sequenced A-CDM@FRA process status
SES
S-East-Sierra Verfahren
 
SGT Standard Ground Time  

SIBT

Scheduled In-Block Time

The time that an aircraft is scheduled to arrive at its parking position.

SID

Standard Instrument Departure

Published flight procedures followed by aircraft on an IFR flight plan immediately after take off from an airport.

SIT1

NMOC Slot Issue Time

The time when the NMOC issues the SAM(Slot Allocation Message). This is normally two hours before EOBT.

SITA Société Internationale de Télécommunication Aéronautique  

SLA

Service Level Agreement

 

SLC

Slot Cancellation message

Standard message from NMOC sent when flight regulations are canceled

SMS Short Message Service Via Cellphone

SOBT

Scheduled Off-Block Time

The time that an aircraft is scheduled to depart from its parking position.

SRE Sammelraum Fraport Data for Gate

SRM

Slot Revision Message

Standard message from NMOC sent when flight regulations are revised

SSR

Secondary Surveillance Radar

 

STAR

Standard Arrival Route

 

STD Scheduled Time of Departure  
STOT Sequenced Take Off Time Time calculated by sequencer system

STTT

Scheduled Turn-round Time

Metric SOBT - SIBT

STW Slot Tolerance Window CTOT –5 / +10 minutes
SUG Start Up Given A-CDM@FRA process status
SUR Start Up Requested A-CDM@FRA process status

TBD

To Be Defined

 

TDP Target DPI sended to NMOC
A-CDM@FRA process status

T-DPI

Target - Departure Planning Information message

This DPI message is sent from the CDM Airport to the NMOC (ETFMS) notifying the Target Take Off Time (TTOT).

TE Terminated FUM status
TFDPS Tower Flight Data Processing System Operational Tower system
TFO Take Off from outstation A-CDM@FRA process status
TIBT Target In-Block Time  
TLDT Target Landing Time Targeted Time from the Arrival management process at the threshold, taking runway sequence and constraints into account. It is not a constraint but a progressively refined planning time used to coordinate between arrival and departure management processes. Each TLDT on one runway is separated from other TLDT or TTOT to represent vortex and/ or SID separation between aircraft.
TMA Terminal Manoeuvring Area  
TMI Thirty Minutes Inbound The time at which the DFS-AMAN delivers ARCID, ARCTYP and ELDT to the Fraport-FDPS
TMO Ten Minutes Out A-CDM@FRA process status (ELDT – 10min)

TOBT

Target Off-Block Time

The time that an Aircraft Operator or Ground Handler estimates that an aircraft will be ready, all doors closed, boarding bridge removed, push back vehicle available and ready to start up / push back immediately upon reception of clearance from the TWR

TOP Tow on Position A-CDM@FRA process status

TSAT

Target Start Up Approval Time

The time provided by ATC taking into account TOBT, CTOT and/or the traffic situation that an aircraft can expect start up / push back approval
Note: The actual start up approval (ASAT) can be given in advance of TSAT

TTDF

Target Time over Departure Fix

 

TTOF Target Time over Fix  

TTOT

Target Take Off Time

The Target Take Off Time taking into account the TOBT/TSAT plus the EXOT. Each TTOT on one runway is separated from other TTOT or TLDT to represent vortex and/or SID separation between aircraft.

TWR

Aerodrome Control Tower

 

TWY Taxiway  
TXG Taxi Given A-CDM@FRA process status
TXR Taxi Requested A-CDM@FRA process status
TYP Aircraft Type  
UI User Interface  
VDZ Verkehrsdatenzentrale Fraport Airport Traffic Data Center

VFR

Visual Flight Rules

 

VK Vorfeldkontrolle Fraport Apron Control
vs. Versus  
VTOT Virtuelle Take Off Time Internal system time calculated by sequencer system for TSAT gereration
VTTC Variable Taxi Time Calculation  
VZ Verkehrszentrale Fraport Airport Traffic Center

WBS

Work Breakdown Structure

 

WP

Work Package