FullDescription:En-Route Operation
ASAS-Crossing and Passing
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| Term | ASAS-Crossing and Passing |
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Abbreviation
Definition
An ASAS application presenting the controller with an opportunity to devolve the crossing and passing task to the pilot, on an individual aircraft basis, whilst retaining responsibility for separation from other aircraft.
Definition Source
SESAR Consortium (2007) CONOPS Acronyms and Definitions, Task 2.2.2 - Milestone 3, Document Number: DLT-0612-222-02-00
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ASAS-Self Separation
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| Term | ASAS-Self Separation |
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Abbreviation
Definition
In ASAS Self-Separation the aircrew are the designated separator for a defined segment of a flight during which they shall assure airborne separation between themselves and all other aircraft.
Definition Source
SESAR Consortium (2007) CONOPS Acronyms and Definitions, Task 2.2.2 - Milestone 3, Document Number: DLT-0612-222-02-00
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ASAS-Separation
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| Term | ASAS-Separation |
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Abbreviation
Definition
An ASAS application in which the role of separator is temporarily delegated to aircrew to assure airborne separation with regard to other aircraft under specific circumstances
Definition Source
SESAR Consortium (2007) CONOPS Acronyms and Definitions, Task 2.2.2 - Milestone 3, Document Number: DLT-0612-222-02-00
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ASAS-Sequencing and Merging
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| Term | ASAS-Sequencing and Merging |
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Abbreviation
Definition
An ASAS application that enables flight crew to maintain their position in a sequence previously determined by a controller or to merge their routes onto a single, predefined, route.
Definition Source
SESAR Consortium (2007) CONOPS Acronyms and Definitions, Task 2.2.2 - Milestone 3, Document Number: DLT-0612-222-02-00
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ASAS-Spacing
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| Term | ASAS-Spacing |
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Abbreviation
ASPA
Definition
An ASAS spacing provision mode in which the separation responsibility remains with the Controller and the flight crew are instructed to maintain a specified time or distance from a designated aircraft, usually the preceding aircraft in the arrival or departure stream.
Definition Source
SESAR Concept of Operations Step 1 final edition 02.02.00 (2015)
Note
Lexicon Release
Lexicon Release 2016.1
Controlled Time Over
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| Term | Controlled Time Over |
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Abbreviation
CTO
Definition
An ATM imposed time constraint over a point (way point or defined by lat/long coordinates) to be achieved within the required accuracy by the use of the avionics.
Definition Source
SESAR Concept of Operations Step 1 Edition 2015 (Ed. 02.02.00)
Note
Lexicon Release
Lexicon Release 2015.2
Cooperative separation
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| Term | cooperative separation |
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spelling variant: co-operative separation |
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Abbreviation
Definition
airborne separation applications implying temporary delegation of the role of separator
Definition Source
SESAR Consortium (2007) CONOPS Acronyms and Definitions, Task 2.2.2 - Milestone 3, Document Number: DLT-0612-222-02-00
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Queue management
| Link | Semantic Value |
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| Term | queue management |
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Abbreviation
Definition
The tactical establishment and maintenance of a safe, orderly and efficient flow of traffic.
Definition Source
SESAR Consortium (2007) CONOPS Acronyms and Definitions, Task 2.2.2 - Milestone 3, Document Number: DLT-0612-222-02-00
Note
It includes the handling of queues, both in the air and on the ground. It operates on individual flights and is closely related to, and sometimes indistinguishable from, the Separation Provision process.
It aims at facilitating the highest achievable capacity of the ATM System and to manage delays in a fuel-efficient and environmentally acceptable manner.
Lexicon Release
Lexicon Release 2015.2
Time-Based Separation
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| Term | Time-Based Separation |
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approved |
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Abbreviation
TBS
Definition
the separation of aircraft using time intervals instead of distances.
In SESAR step 1, it may be applied during final approach, where TBS rules allow the equivalent distance to be displayed to the controllers according to the prevailing wind conditions.
Definition Source
SESAR WP 6, Definitions Team
Note
related article on EUROCONTROL homepage [1]
Lexicon Release
Lexicon Release 2015.2
