FullDescription:En-Route Operation

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ASAS-Crossing and Passing

Link Semantic Value
Term ASAS-Crossing and Passing
Status


Mandatory for


Contexts

SESAR

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Airborne Separation Assistance System (ASAS)

Broader term


Narrower term


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

Note

ASAS-Self Separation

Link Semantic Value
Term ASAS-Self Separation
Status


Mandatory for


Contexts

SESAR

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Airborne Separation Assistance System

Broader term


Narrower term


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

Note

ASAS-Separation

Link Semantic Value
Term ASAS-Separation
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Mandatory for


Contexts

SESAR

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Airborne Separation Assistance System

separator

Broader term


Narrower term


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

Note

ASAS-Sequencing and Merging

Link Semantic Value
Term ASAS-Sequencing and Merging
Status


Mandatory for


Contexts

SESAR

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Related entries

Airborne Separation Assistance System (ASAS)

Broader term


Narrower term


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

Note

ASAS-Spacing

Link Semantic Value
Term ASAS-Spacing
Status


Mandatory for


Contexts

SESAR

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Related entries

Airborne Separation Assistance System (ASAS)

Broader term


Narrower term


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

Link Semantic Value
Term Controlled Time Over
Status


Mandatory for


Contexts

SESAR

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Related entries

Controlled Time of Arrival

Broader term


Narrower term


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

Link Semantic Value
Term cooperative separation
Status


Mandatory for


Contexts

SESAR

Categories


Synonyms

spelling variant:

co-operative separation

Related entries

separator

Broader term


Narrower term


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

Note

Queue management

Link Semantic Value
Term queue management
Status


Mandatory for


Contexts

SESAR

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Broader term


Narrower term


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

Link Semantic Value
Term Time-Based Separation
Status

approved

Mandatory for


Contexts

SESAR

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Related entries

TBS rules

Broader term


Narrower term


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