The terms below should be copied to separate pages below ASM Terms, Attributes, Concepts.
Process:
- Create a new page by copying the _template page.
- Use the "Term" column below as the page name. This will then automatically end up as the term name in the table.
- Cut the text in the "Description" cell below to the "Description" cell on the new page.
- Consider adding comments and type information. Not always relevant.
- Save the page.
- Delete any non-relevant labels from the page. The followings labels should be used:
- "asm_term" for all asm definition pages.
- "asm_concept" for pages defining concepts, for instance A-CDM.
- "asm_type" for pages defining a data type, for instance DateTimeUTC.
- "asm_attribute" for pages defining attributes, for instance Anticipated Actual Take Off Time.
- Create a link to the newly created page in the table below. This way it's easy to see the terms that has been created as separate pages.
After this the terms can be used elsewhere on the project pages. As long as a Confluence wiki link is used all references to the page will be renamed if the page itself is renamed. Gate is the portion of an airport that connects an aircraft with its payload. Area Control Centre [Source: ACDM 2012-airport-cdm-manual-v4] ATC-Departure Planning Information message DPI message sent by the CDM Airport to the Network Operations (ETFMS) notifying the TTOT between ATC time of pre-departure sequencing and ATOT [Source: ACDM 2012-airport-cdm-manual-v4] 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) [Source: ACDM 2012-airport-cdm-manual-v4] Memorandum of Understanding [Source: ACDM 2012-airport-cdm-manual-v4]Field name Description Anticipated Actual Take Off Time Aircraft Communications Addressing and Reporting System Area Control Centre A-CDM Airport CDM Airport CDM partner ATC Flight plan change message Aircraft Identification (ICAO) Airport CDM Information Sharing Element Airport CDM Information Sharing Platform Acknowledgement message Aircraft Operator Aircraft turnaround process Aircraft touch down Aircraft Code (IATA) Aircraft Type (ICAO) Actual Commencement of De-icing Time Airport of Departure (ICAO) Airport of Destination (ICAO) ADEXP Actual De-icing Time ATC Departure Planning Adverse Condition Adverse Conditions Element Aeronautical data Actual End of De-icing Time Actual Final Approach Time Aeronautical Fixed Telecommunication Network Actual Ground Handling Time Actual In Block Time Airport Actual Landing Time Arrival Manager Air Navigation Service Provider Actual Off Block Time Airline Operational (Control) Centre Airport Operations Programme EATM Airport Throughput Business Division Aircraft Ready Time Arrival Arrival parking position Runway to Be Used for Landing Actual Ready for De-icing Time Actual Start up Approval Time Actual Start Boarding Time Advanced Surface Movement Guidance and Control System Actual Start up Request Time ATC ATFCM Air Traffic Flow Management ATM Actual Take Off Time Air Traffic Services Air Traffic Service Provider Aircraft Operator Target Take-Off Time Actual Turn-round Time Actual Taxi-In Time Actual Taxi-Out Time Cost-Benefit Analysis A cost-benefit analysis (CBA) is the process used to measure the benefits of a decision or taking action minus the costs associated with taking that action. - [Other sources] CDM in Adverse Conditions The CDM in Adverse Conditions Element consists of a collaborative management of the capacity of a CDM AIRPORT during periods of a predicted or unpredicted reduction of capacity. The aim is to achieve a common situational awareness for the Airport CDM Partners, including better information for the passengers, in anticipation of a disruption and expeditious recovery after the disruption. At least the Airport CDM Information Sharing [Concept Element / Application] needs to be applied at the CDM AIRPORT to implement the CDM in Adverse Conditions. - [ED-145A Definition] Cancel Departure Planning This message informs the CFMU that previously sent DPI is no longer valid. - [ED-145A Definition] CFMU (FUM/DPI) Central Flow Management Unit (CFMU), Brussels - A Central Management Unit operated by EUROCONTROL.
(ICAO Doc 7754, Volume I, Part V.III, paragraph 3) - [ED-145A Definition]Modification Message Standard message sent to NMOC to change flight plan data - [EUROCONTROL Specification for A-CDM v0.8] Collaborative Management of Flight Updates The Collaborative Management of Flight Updates consists of message exchange between the NMOC and a CDM Airport to provide landing time estimates for arriving flights to CDM Airports and to improve the ATFM slot management process for departing flights. This is achieved by the Flight Update Messages (FUM) and Departure Planning Information (DPI) messages via EFTN or the Flight Data Output Service, and DPIs via B2B. - [EUROCONTROL Specification for A-CDM v0.8] ATC Flight plan Cancellation message Standard message sent to NMOC to cancel a flight plan - [EUROCONTROL Specification for A-CDM v0.8] Collaborative Management of Flight Updates The Collaborative Management of Flight Updates Element consists of exchanging Flight Update Messages (FUM) and Departure Planning Information (DPI) messages between the CFMU and a CDM AIRPORT to provide estimates for arriving flights to CDM Airports and improve the ATFM slot management process for departing flights.
The aim is to improve the coordination between Air Traffic Flow and Capacity Management (ATFCM) and airport operations at a CDM AIRPORT.
The Airport CDM Information Sharing, CDM Turn-round Process (Milestones Approach) and Variable Taxi Time Calculation Elements need to be applied at the CDM AIRPORT to implement the Collaborative Management of Flight Updates. - [ED-145A Definition]Collaborative Predeparture sequence The Collaborative Predeparture sequence is the order that aircraft are planned to depart from their stands (push off blocks) taking into account partners’ preferences. It should not be confused with the pre-take off order where ATC organise aircraft at the holding point of a runway. The aim is to enhance flexibility, increase punctuality and improve slot-adherence, allowing the airport partners to express their preferences. At least the Airport CDM Information Sharing and the CDM Turn-round Process (Milestones Approach) Elements need to be applied at the CDM AIRPORT to implement the Collaborative Predeparture Sequence. - [ED-145A Definition] Calculated Take Off Time CDM Turn-round process The CDM Turn-round Process Element (Milestones Approach) describes the progress of a flight from the initial planning to the take off from a CDM AIRPORT by defining Milestones to enable close monitoring of significant events. The aim is to achieve a common situational awareness and to predict the forthcoming events for each flight. The CDM Turn-round Process combined with the Airport CDM Information Sharing Element is the foundation for the other Airport CDM Elements. - [ED-145A Definition] Data exchange model A data interchange model provides the means to convey data among applications - [Other sources] Data Item IDentifier Departure Control System A departure control system (DCS) automates processing an airline's airport management operation, which includes managing the information required for airport check-in, printing boarding cards, baggage acceptance, boarding, load control and aircraft checks. - [Other sources] De-icing Operations Deicing operations means removing ice from aircraft or runways. - [Other sources] Departure Outbound flight - [EUROCONTROL Specification for A-CDM v0.8] Airport of Departure (IATA) Departure parking position Runway to Be Used for Take Off Flight Desuspension The network manager sends a DES when a flight not subjectto ATFCM restrictions is de-suspended - [Other sources] IATA Airline Designation ICAO Airline Designation Airport of Destination (IATA) IATA code which uniquely defines an airport of destination. - [Other sources] Docking Guidance System Docking guidance system is a system which gives information to a pilot attempting to park an aircraft at an airport stand, usually via visual methods - [Other sources] Delay message Standard message sent to NMOC to delay flight plan OBT - [EUROCONTROL Specification for A-CDM v0.8] 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 - [EUROCONTROL Specification for A-CDM v0.8] DPI message Provides a vital flow of information from their operational ATC Unit to NMOC about the current situation within their ACC and the operational situation at the airport - [EUROCONTROL Specification for A-CDM v0.8] European Air Traffic Management European ATM network Estimated Commencement of De-icing Time Estimated De-icing Time Early Departure Planning First DPI message is sent from -3 hrs and before the T-DPI message by the CDM AIRPORT to the CFMU (ETFMS) notifying the ETOT. Also first DPI sent after ATC flight plan Cancellation. - [ED-145A Definition] Estimated Elapse Time The estimated time required to proceed from one significant point to another (ICAO) - [ED-145A Definition] Estimated End of De-icing Time Estimated In Block Time Estimated Landing Time Estimated Off Block Time Estimated Ready for De-icing Time 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 - [EUROCONTROL Specification for A-CDM v0.8] Estimated Time Over Estimated Take Off Time Estimated Turn Round Time EUROCONTROL European organisation for the safety of air navigation - [EUROCONTROL Specification for A-CDM v0.8] External interface A connection to a external device. - [Other sources] Estimated Taxi In Time Estimated Taxi Out Time Flight Information Display System Flight Information Display System - [IATA Definitions] Flight Information Region Flight information region (FIR) is a specified region of airspace in which a flight information service and an alerting service (ALRS) are provided. - [Other sources] Flight Flow Management Position Flight Number (IATA) <<<<<<< Flight number or flight designator is a code for an airline service consisting of two-character airline designator and a 1 to 4 digit number. - [Other sources] ICAO format Specifications set out by the International Civil Aviation Organisation (ICAO) in relation to machine readable travel documents, including passports, travel documents and visas - [Other sources] Filed ATC flight plan ICAO derived flight plan - [EUROCONTROL Specification for A-CDM v0.8] First System Activation Flight Update Messages A FUM is sent from the CFMU to a CDM AIRPORT providing an ELDT, ETO and Flight Level at the last point of route. - [ED-145A Definition] General Air Traffic General air traffic (GAT) encompasses all flights conducted in accordance with the rules and procedures of International Civil Aviation Organisation (ICAO). These may include military flights for which ICAO rules satisfy their operational requirements.
[EUROCONTROL EATM Glossary of Terms] - [Other sources]Gate Ground Handler A Ground Handling Agent or Ground Handler is the company or person(s) that perform Ground Handling. - [ED-145A Definition] Ground Handling The Ground Handling covers a complex series of processes that are required to separate an aircraft from its load (passengers, baggage, cargo and mail) on arrival and combine it with its load prior to departure. - [ED-145A Definition] IATA The International Air Transport Association is a trade association of the world's airlines - [Other sources] ICAO The International Civil Aviation Organization is a specialized agency of the United Nations. It changes the principles and techniques of international air navigation and fosters the planning and development of international air transport to ensure safe and orderly growth. - [Other sources] Initial Flight Plan The flight plan as filed with an ATS unit by the pilot or a designated representative, without any subsequent changes. - [ICAO Doc 4444 ed16] Initial Flight Plan Identifier Integrated Initial ATC flight plan processing system Integrated Initial ATC flight plan Processing System (IFPS) - A system of the CFMU designed to rationalise the reception, initial processing and distribution of IFR/GAT ATC 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) - [ED-145A Definition]Instrument Flight Rules Instrument flight rules (IFR) is one of two sets of regulations governing all aspects of civil aviation aircraft operations - [Other sources] Internal interface Internal connection of the device - [Other sources] Interface connection Connection between two pieces of electronic equipment - [Other sources] Low Visibility Procedures ATC Flight Plan Activation A-CDM Milestone - [ED-145A Definition] TSAT Issue A-CDM Milestone - [ED-145A Definition] Boarding starts A-CDM Milestone - [ED-145A Definition] Aircraft ready A-CDM Milestone - [ED-145A Definition] Start up request A-CDM Milestone - [ED-145A Definition] Start up A-CDM Milestone - [ED-145A Definition] Off-block A-CDM Milestone - [ED-145A Definition] Take Off A-CDM Milestone - [ED-145A Definition] EOBT-2 hr A-CDM Milestone - [ED-145A Definition] Take off from outstation A-CDM Milestone - [ED-145A Definition] Local Radar Update A-CDM Milestone - [ED-145A Definition] Final approach A-CDM Milestone - [ED-145A Definition] Landing A-CDM Milestone - [ED-145A Definition] In-block A-CDM Milestone - [ED-145A Definition] Ground handling start A-CDM Milestone - [ED-145A Definition] TOBT update A-CDM Milestone - [ED-145A Definition] Minimum Turn Round Time Movement message Standardised IATA format message, sent via SITA to destination airport, AO and other recipients, containing departure data of a flight - [EUROCONTROL Specification for A-CDM v0.8] Operational Air Traffic Operational Air Traffic (OAT) have to perform activities that are fundamentally different than those done by General Air Traffic (GAT) and are not covered by ICAO SARPs. OAT missions include air-to-air refuelling, air combat maneuvring, etc. and the aircraft involved often have supersonic capabilities. - [Other sources] Operational Concept Document Document describing the characteristics of a proposed system from the viewpoint of an individual who will use that system. - [Other sources] Airline operator Operational decision Operational decisions are made to execute the short-term processes with the aim of achieving the long- and medium-term goals that the strategic and tactical level decisions have adopted. - [Other sources] Phase of flight The phase of flight refers to a period within a flight. In the case of a manned aircraft, a flight begins when any person boards the aircraft with the intention of flight and continues until such time as all such persons have disembarked. - [Other sources] Ready message Aircraft Registration Rejection message Replacement ATC flight plan Repetitive ATC flight plan Radio Technical Commission for Aeronautics RTCA is a United States non-profit organization that develops technical guidance for use by government regulatory authorities and by industry. - [Other sources] Runway Slot Allocation Message Series of sequential events Scheduled In Block Time Standard Instrument Departure CFMU Slot Issue Time Situational awareness Situational awareness or situation awareness (SA) is the perception of environmental elements and events with respect to time or space, the comprehension of their meaning, and the projection of their future status. - [Other sources] Slot Cancellation message Standard message from NMOC sent when a previously allocated CTOT is cancelled - [EUROCONTROL Specification for A-CDM v0.8] Slot Allocation The allocation of slots between air carriers ('slot allocation') is a planning tool. Its purpose is to ensure, where airport capacity is scarce, that available landing and take-off slots are used efficiently and distributed in a neutral, non-discriminatory and transparent way. - [Other sources] Slot Revision Scheduled Off Block Time Slot Revision Message Standard message from NMOC sent when a previously allocated CTOT is revised - [EUROCONTROL Specification for A-CDM v0.8] Secondary Surveillance Radar Secondary surveillance radar (SSR) is a radar system used in air traffic control (ATC), that unlike primary radar systems that measure the bearing and distance of targets using the detected reflections of radio signals, relies on targets equipped with a radar transponder, that reply to each interrogation signal by transmitting encoded data such as an identity code, the aircraft's altitude and further information depending on its chosen mode. - [Other sources] Standard Arrival Route Scheduled Turn-round Time Flight Suspension Target Departure Planning This DPI message is sent from –2 hrs up to AOBT by the CDM AIRPORT to the CFMU (ETFMS) notifying the Target Take Off Time - [ED-145A Definition] Testing specification Test specifications are iterative, generative blueprints of test design. They are written at the item level, and allow test developers or item writers to produce new versions of a test. - [Other sources] Target Off Block Time Tactical pre departure sequence The pre-departure sequence is the order that aircraft are planned to depart from their stands (push off-blocks) taking into account partners' preferences - [Other sources] Target Start Up Approval Time Target Take Off Time Aerodrome Control Tower A unit established to provide air traffic control service to aerodrome traffic - [EUROCONTROL Specification for A-CDM v0.8] Taxiway A defined path on a land aerodrome established for the taxiing of aircraft and intended to provide a link between one part of the aerodrome and another, including:
a) Aircraft stand taxilane. A portion of an apron designated as a taxiway and intended to provide access to aircraft stands only.
b) Apron taxiway. A portion of a taxiway system located on an apron and intended to provide a through taxi route across the apron.
c) Rapid exit taxiway. A taxiway connected to a runway at an acute angle and designed to allow landing aeroplanes to turn off at higher speeds than are achieved on other exit taxiways thereby minimizing runway occupancy times. - [ICAO Doc 4444 ed16]Visual Flight Rules A flight conducted in accordance with the visual flight rules. - [ICAO Doc 4444 ed16] Variable Taxi Time Calculation The Variable Taxi Time Calculation Element consists of calculating and distributing to the Airport CDM Partners accurate estimates of taxi-in and taxi-out times to improve the estimates of in-block and take off times. The complexity of the calculation may vary according to the needs and constraints at the CDM AIRPORT.
The aim is to improve the traffic predictability.
At least the Airport CDM Information Sharing Element needs to be applied at the CDM AIRPORT to implement the Variable Taxi Time Calculation. - [ED-145A Definition]A-CDM compatibility A-CDM interoperability A-CDM Task Force Airport CDM concept Airport CDM mechanism Airport CDM procedure Airport CDM tool Airport collaboration Airport environment Airport environment level Airport operation level Airport Operations Airport-CDM implementation Airport-CDM system ATM capacity ATM efficiency Disruption DPI Status EUROCAE standard Functional Requirements Document IATA format IATA keyfields ICAO keyfields Identification of the flight The situation which exists when the position indication of a particular aircraft is seen on a situation display and positively identified - [ICAO Doc 4444 ed16] Implementation Manual Potential delays Service providers Traffic predictability ACC Actual Commence Of Ground Handling Time ACGT See Actual Commence Of Ground Handling Time ACISP Airport CDM Information Sharing Platform [Source: ACDM 2012-airport-cdm-manual-v4] ACZT See Actual Commencement of De-icing Time ADEP See Airport of Departure (ICAO) or Airport of Departure (IATA) ADES See Airport of Destination (ICAO) or Airport of Destination (IATA) ADIT See Actual De-icing Time A-DPI AEGT See Actual End of Ground handling Time AEZT See Actual End of De-icing Time AFTN Aeronautical Fixed Telecommunication Network [Source: ACDM 2012-airport-cdm-manual-v4] AGHT See Actual Ground Handling Time AIBT See Actual In Block Time ALDT See Actual Landing Time AMAN Arrival Manager An arrival flow management tool that optimises the traffic flow into a TMA and/or runway(s) by calculating TLDT (Target LanDing Time) taking various constraints and preferences into account [Source: ACDM 2012-airport-cdm-manual-v4] ANSP Air Navigation Service Provider An organisation responsible for management of flight traffic on behalf of a company, region or country [Source: ACDM 2012-airport-cdm-manual-v4] AO Aircraft Operator A person, organisation or enterprise engaged in or offering to engage in an aircraft operation. (ICAO Doc 4444, Chapter 1) [Source: ACDM 2012-airport-cdm-manual-v4] AOBT See Actual Off Block Time AOC Airport Operator Committee [Source: ACDM 2012-airport-cdm-manual-v4] APP Approach Control Unit [Source: ACDM 2012-airport-cdm-manual-v4] ARDT See Actual Ready Time ARR Arrival Inbound flight [Source: ACDM 2012-airport-cdm-manual-v4] ARZT See Actual Ready for De-icing Time ASAT See Actual Start up Approval Time ASBT See Actual Start Boarding Time A-SMGCS ASRT See Actual Start up Request Time 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) [Source: ACDM 2012-airport-cdm-manual-v4] ATOT See Actual Take Off Time 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 [Source: ACDM 2012-airport-cdm-manual-v4] ATTT See Actual Turn-round Time AXIT See Actual Taxi-In Time AXOT See Actual Taxi-Out Time 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 [Source: ACDM 2012-airport-cdm-manual-v4] C-DPI Cancel – Departure Planning Information message This message informs the Network Operations that previously sent DPI is no longer valid [Source: ACDM 2012-airport-cdm-manual-v4] CFMU (renamed Network Operations) Central Flow Management Unit Central Flow Management Unit (CFMU), Brussels – A Central Management Unit operated by EUROCONTROL. (ICAO Doc 7754, Volume I, Part V.III, paragraph 3) [Source: ACDM 2012-airport-cdm-manual-v4] CHG Modification message Standard message sent to Network Operations to change flight plan data [Source: ACDM 2012-airport-cdm-manual-v4] CNL Flight Plan Cancellation Standard message sent to Network Operations to cancel flight plan [Source: ACDM 2012-airport-cdm-manual-v4] CPDLC Controller Pilot data Link Communication [Source: ACDM 2012-airport-cdm-manual-v4] CTOT DCL Departure Clearance (Data link) [Source: ACDM 2012-airport-cdm-manual-v4] DEP Departure Outbound flight [Source: ACDM 2012-airport-cdm-manual-v4] DLA Delay message Standard message sent to Network Operations to delay flight plan OBT [Source: ACDM 2012-airport-cdm-manual-v4] 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 [Source: ACDM 2012-airport-cdm-manual-v4] DPI Departure Planning Information message Message from Airport to Network Operations. See also A-DPI, C-DPI, E-DPI, T-DPI [Source: ACDM 2012-airport-cdm-manual-v4] ECZT EDIT See Estimated De-icing Time E-DPI Early – Departure Planning Information message First DPI message that is sent from the CDM Airport to the Network Operations (ETFMS) notifying the ETOT [Source: ACDM 2012-airport-cdm-manual-v4] EET Estimated Elapsed Time The estimated time required to proceed from one significant point to another (ICAO) [Source: ACDM 2012-airport-cdm-manual-v4] EEZT EIBT ELDT See Estimated Landing Time EOBT See Estimated Off Block Time ERZT See Estimated Ready for De-icing Time 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 [Source: ACDM 2012-airport-cdm-manual-v4] ETO Estimated Time Over [Source: ACDM 2012-airport-cdm-manual-v4] ETOT See Estimated Take Off Time ETTT See Estimated Turn Round Time EXIT See Estimated Taxi In Time EXOT See Estimated Taxi Out Time FIDS Flight Information Display System [Source: ACDM 2012-airport-cdm-manual-v4] FIR Flight Information Region [Source: ACDM 2012-airport-cdm-manual-v4] FLS Flight Suspension message Standard message sent from Network Operations to suspend flight plan OBT [Source: ACDM 2012-airport-cdm-manual-v4] FMP Flow Management Position Provides a vital flow of information from their operational ATC Unit to the Network Operations about the current situation within their ACC and the operational situation at the airport [Source: ACDM 2012-airport-cdm-manual-v4] FPL Filed Flight Plan ICAO derived flight plan [Source: ACDM 2012-airport-cdm-manual-v4] FRD Functional Requirements Document This document specifies the minimum set of requirements to implement Airport CDM [Source: ACDM 2012-airport-cdm-manual-v4] FSA First System Activation [Source: ACDM 2012-airport-cdm-manual-v4] FUM Flight Update Message A message sent from the Network Operations to a CDM Airport providing an ELDT, ETO and flight level at the last point of route [Source: ACDM 2012-airport-cdm-manual-v4] GH Ground Handler Company responsible for handling of aircraft during turn-round at the airport [Source: ACDM 2012-airport-cdm-manual-v4] 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 [Source: ACDM 2012-airport-cdm-manual-v4] IFPS Integrated Initial Flight Plan Processing System A system of the Network Operations designed to rationalise 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) [Source: ACDM 2012-airport-cdm-manual-v4] IFR Instrument Flight Rules [Source: ACDM 2012-airport-cdm-manual-v4] KPI Key Performance Indicator [Source: ACDM 2012-airport-cdm-manual-v4] LoA Letter of Agreement [Source: ACDM 2012-airport-cdm-manual-v4] LVP Low Visibility Procedures [Source: ACDM 2012-airport-cdm-manual-v4] MoU MTTT See Minimum Turn Round Time MVT Movement message Standardised IATA format message, sent via SITA to destination airport, AO and other recipients, containing departure data of a flight [Source: ACDM 2012-airport-cdm-manual-v4] OCD Operational Concept Document [Source: ACDM 2012-airport-cdm-manual-v4] PAX Passengers [Source: ACDM 2012-airport-cdm-manual-v4] PMP Project Management Plan [Source: ACDM 2012-airport-cdm-manual-v4] REA Ready message [Source: ACDM 2012-airport-cdm-manual-v4] REJ Rejection message [Source: ACDM 2012-airport-cdm-manual-v4] RFP Replacement Flight Plan [Source: ACDM 2012-airport-cdm-manual-v4] RWY Runway [Source: ACDM 2012-airport-cdm-manual-v4] SAM Slot Allocation Message [Source: ACDM 2012-airport-cdm-manual-v4] SIBT See Scheduled In Block Time SID Standard Instrument Departure Published flight procedures followed by aircraft on an IFR flight plan immediately after take off from an airport [Source: ACDM 2012-airport-cdm-manual-v4] SIT1 Network Operations Slot Issue Time The time when the Network Operations issues the SAM (Slot Allocation Message). This is normally two hours before EOBT [Source: ACDM 2012-airport-cdm-manual-v4] SLA Service Level Agreement [Source: ACDM 2012-airport-cdm-manual-v4] SLC Slot Cancellation message Standard message from Network Operations sent when flight regulations are canceled [Source: ACDM 2012-airport-cdm-manual-v4] SOBT See Scheduled Off Block Time SRM Slot Revision Message Standard message from Network Operations sent when flight regulations are revised [Source: ACDM 2012-airport-cdm-manual-v4] SSR Secondary Surveillance Radar [Source: ACDM 2012-airport-cdm-manual-v4] STAR Standard Arrival Route [Source: ACDM 2012-airport-cdm-manual-v4] STTT See Scheduled Turn-round Time TBD To Be Defined [Source: ACDM 2012-airport-cdm-manual-v4] T-DPI Target - Departure Planning Information message This DPI message is sent from the CDM Airport to the Network Operations (ETFMS) notifying the Target Take Off Time (TTOT) [Source: ACDM 2012-airport-cdm-manual-v4] TOBT See Target Off Block Time TSAT See Target Start Up Approval Time TLDT 4D Trajectory 4 Dimension Trajectory A set of consecutive segments linking waypoints and/or points computed by FMS (airborne) or by TP or Routing function (ground) to build the vertical profile and the lateral transitions (each point defined by a longitude, a latitude, a level and a time [Source: ACDM 2012-airport-cdm-manual-v4] TTOT See Target Take Off Time TWR Aerodrome Control Tower [Source: ACDM 2012-airport-cdm-manual-v4] VFR Visual Flight Rules [Source: ACDM 2012-airport-cdm-manual-v4] VTT Variable Taxi Time Common name for inbound (EXIT) and outbound (EXOT) Taxi Times. The Variable Taxi Time replaces the default Taxi Time [Source: ACDM 2012-airport-cdm-manual-v4] WBS Work Breakdown Structure [Source: ACDM 2012-airport-cdm-manual-v4] WP Work Package [Source: ACDM 2012-airport-cdm-manual-v4] Adverse Conditions Concept Element Adverse Conditions Element consists of collaborative management of the capacity of an airport during periods of a predicted or unpredicted reduction of capacity
The aim is to achieve a common situational awareness for the Airport CDM Partners, including better information for the passengers, in anticipation of a disruption and expeditious recovery after the disruption
The Concept Elements Information Sharing, Milestones Approach, Variable Taxi Time, and Pre-departure Sequencing need to be implemented at the airport before Adverse Conditions can be implemented successfully [Source: ACDM 2012-airport-cdm-manual-v4]Airport Collaborative Decision Making (Airport CDM) Airport Collaborative Decision Making is the concept which aims at improving Air Traffic Flow and Capacity Management (ATFCM) at airports by reducing delays, improving the predictability of events and optimising the utilisation of resources
Implementation of Airport CDM allows each Airport CDM Partner to optimise their decisions in collaboration with other Airport CDM Partners, knowing their preferences and constraints and the actual and predicted situation
The decision making by the Airport CDM Partners is facilitated by the sharing of accurate and timely information and by adapted procedures, mechanisms and tools
The Airport CDM concept is divided in the following Elements:
Information Sharing
Milestone Approach
Variable Taxi Time
Pre-departure Sequencing
Adverse Conditions
Collaborative Management of Flight Updates
Note: Airport CDM is also the name of the EUROCONTROL project coordinating the implementation of the Airport CDM concept on ECAC airports. This project is part of the DMEAN and SESAR programs [Source: ACDM 2012-airport-cdm-manual-v4]Airport CDM Information Sharing Concept Element The Information Sharing Element defines the sharing of accurate and timely information between the Airport CDM Partners in order to achieve common situational awareness and to improve traffic event predictability
The Airport CDM Information Sharing Platform (ACISP), together with defined procedures agreed by the partners, is the means used to reach these aims
Information Sharing is the core Airport CDM Element and the foundation for the other Airport CDM Elements. It needs to be implemented before any other Concept Element [Source: ACDM 2012-airport-cdm-manual-v4]Airport CDM Information Sharing Platform (ACISP) The Airport CDM Information Sharing Platform (ACISP) is a generic term used to describe the means at a CDM Airport of providing Information Sharing between the Airport CDM Partners
The ACISP can comprise of systems, databases, and user interfaces [Source: ACDM 2012-airport-cdm-manual-v4]Alert A system generated message which alerts the Airport CDM Partners of an irregularity and which normally requires one or more partners to make a manual intervention to resolve the irregularity [Source: ACDM 2012-airport-cdm-manual-v4] CDM Airport An airport is considered a CDM Airport when Information Sharing, Milestone Approach, Variable Taxi Time, Pre-departure Sequencing, Adverse Conditions and Collaborative Management of Flight Updates Elements are successfully implemented at the airport [Source: ACDM 2012-airport-cdm-manual-v4] Collaborative Management of Flight Updates Concept Element The Collaborative Management of Flight Updates Element consists of exchanging Flight Update Messages (FUM) and Departure Planning Information (DPI) messages between the Network Operations and a CDM Airport, to provide estimates for arriving flights to CDM Airports and improve the ATFM slot management process for departing flights
The aim is to improve the coordination between Air Traffic Flow and Capacity Management (ATFCM) and airport operations at a CDM Airport
The Concept Elements Information Sharing, Milestone Approach, Variable Taxi Time, Pre-departure Sequencing, and Adverse Conditions need to be implemented at the airport before the Collaborative Management of Flight Updates can be implemented in cooperation with Network Operations [Source: ACDM 2012-airport-cdm-manual-v4]Event An event is a distinct occurrence in the planning or operations of a flight that a person or system perceives and responds to in a specific way [Source: ACDM 2012-airport-cdm-manual-v4] Milestone This is a significant event that occurs during the planning or operation of a flight
A successfully completed milestone will trigger the decision making process for downstream events and influence both the further progress of the flight and the accuracy with which the progress can be predicted [Source: ACDM 2012-airport-cdm-manual-v4]Milestone Approach Concept Element The Milestone Approach Element describes the progress of a flight from the initial planning to the take off by defining Milestones to enable close monitoring of significant events
The aim is to achieve a common situational awareness and to predict the forthcoming events for each flight with off-blocks and take off as the most critical events
The Concept Element Information Sharing needs to be implemented at the airport before it can successfully implement the Milestone Approach
The Milestone Approach combined with the Information Sharing element is the foundation for all other Concept Elements [Source: ACDM 2012-airport-cdm-manual-v4]Pre-departure Sequencing Concept Element The pre-departure sequencing is the order that aircraft are planned to depart from their stands (push off-blocks) taking into account partners’ preferences. It should not be confused with the pre-take off order where ATC organise aircrafts at the holding point of a runway
The aim is to enhance flexibility, increase punctuality and improve slot adherence while allowing the airport partners to express their preferences
The Concept Elements Information Sharing, Milestone Approach, and Variable Taxi Time need to be implemented at the airport before the Pre-departure Sequencing can be implemented
Note: The pre-departure sequence can also be derived by a departure manager (DMAN), which calculates based on demand the take off time TTOT and derives the TSAT from the runway sequence. Airports can implement different solutions to achieve the pre-departure sequence, depending on local traffic complexity and surface congestion [Source: ACDM 2012-airport-cdm-manual-v4]Target Time In A-CDM, a target time relates to the time of an airport milestone and serves as a "contract" between partners who are thus committed to achieving the milestone at this time. The time is derived only through a collaborative process and is used for milestone monitoring [Source: ACDM 2012-airport-cdm-manual-v4] Variable Taxi Time Variable Taxi Time is the estimated time that an aircraft spends taxiing between its parking stand and the runway or vice versa
Variable Taxi Time is the generic name for both inbound as outbound taxi time parameters, used for calculation of TTOT or TSAT. Inbound taxi time (EXIT) includes runway occupancy and ground movement time, whereas outbound taxi time (EXOT) includes push back & start up time, ground movement, remote or apron de-icing, and runway holding times [Source: ACDM 2012-airport-cdm-manual-v4]Variable Taxi Time Concept Element The Variable Taxi Time Element consists of calculating and distributing to the Airport CDM Partners accurate estimates of taxi-in and taxi-out times to improve the estimates of in-block and take off times. The complexity of the calculation may vary according to the needs and constraints at the CDM Airport. The aim is to improve the traffic predictability
The Concept Elements Information Sharing and Milestone Approach need to be implemented at the airport before Variable Taxi Time can be implemented [Source: ACDM 2012-airport-cdm-manual-v4]ACARS Aircraft Communications Addressing and Reporting System [Source: ACDM 2012-airport-cdm-manual-v4]