FullDescription:Air transport

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Air carrier

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Term air carrier
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scheduled air carrier

non-scheduled air carrier

charter carrier

Abbreviation

Definition

an enterprise that engages in provision of transportation services by aircraft for remuneration or hire.

Definition Source

ICAO (2004), doc. 9626 "Manual on the Regulation of International Air Transport"

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Air service

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Term air service
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Abbreviation

Definition

1) Any scheduled air service performed by aircraft for the public transport of passengers, mail or cargo.

2) a flight or a series of flights carrying passengers, cargo or mail for remuneration or hire.

Definition Source

1) ICAO, Official definition, DOC 7300 Convention on International Civil Aviation /8, 2000, p. 43, Art. 96

2) COMMISSION REGULATION (EU) No 255/2010 of 25 March 2010 laying down common rules on air traffic flow management

Note

Air service, in its broadest sense, includes any service performed by aircraft for public transportation, whether on a scheduled or non-scheduled basis. For regulatory purposes, however, the term always has a specific meaning (defined in Article 96(a) of the Convention on International Civil Aviation and used in most bilateral air transport agreements between States) and refers to any scheduled air service performed by aircraft for the public transport of passengers, mail or cargo. (Note source: ICAO Terminology and Reference Database)

Air taxi service

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Term air taxi service
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air service

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Abbreviation

Definition

The term can have two meanings:

1. a type of on-demand air service usually performed by small capacity aircraft on short notice in a very similar way to an automobile taxi service;

2. or in some cases, a service operated on a scheduled basis with stops made only at points where passengers and cargo are to be picked up or discharged.

Definition Source

ICAO (2004), doc. 9626, Manual on the Regulation of International Air Transport

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Air traffic

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Term air traffic
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Abbreviation

Definition

All aircraft in flight or operating on the manoeuvring area of an aerodrome.

Definition Source

ICAO (2005) Official definition, ANNEX 2 Rules of the Air 2005

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Airline

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Term airline
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air carrier

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Abbreviation

Definition

As provided in Article 96 of the Convention, any air transport enterprise offering or operating a scheduled international air service.

Definition Source

ICAO (2011) Annex 9 to the Convention on International Civil Aviation: Facilitaion, Chapter 1

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Airworthiness

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Term airworthiness
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Airworthiness Directive

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Abbreviation

Definition

Fitness for flight operations, in all possible environments and foreseeable circumstances for which aircraft or device has been designed.

Definition Source

GUNSTON, Bill, "JANE's Aerospace Dictionary", Third Edition, United Kingdom, Butler & Tanner LTD., 1988

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Airworthiness Directive

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Term Airworthiness Directive
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airworthiness

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Abbreviation

AD

Definition

A regulatory document which identifies aeronautical products in which an unsafe condition exists or where the condition is likely to exist or develop in other products of the same type design. It prescribes corrective actions to be taken or the conditions or limitations under which the products may continue to be operated.

Definition Source

ICAO, DOC 9760/2 Airworthiness Manual, Volume II — Design Certification and Continuing Airworthiness 2001, 1st ed., p. IIB-1-1, Chap. 1 (Def.)

Note

The airworthiness directive is the most commonly encountered form of the 'mandatory continuing airworthiness information' mentioned in Annex 8.

Available seat-kilometres

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Term available seat-kilometres
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seat-kilometres available

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available tonne-kilometres

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Abbreviation

ASK

Definition

the sum of the products obtained by multiplying the number of passenger seats available for sale on each flight stage by the stage distance (a seat-kilometre is available when a seat is flown one kilometre).

Definition Source

ICAO (2004), doc. 9626, Manual on the Regulation of International Air Transport

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Available tonne-kilometres

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Term available tonne-kilometres
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tonne-kilometres available (TKA)

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available seat-kilometres

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Abbreviation

ATK

Definition

the sum of the products obtained by multiplying the number of tonnes available for the carriage of revenue load (passengers, freight and mail) on each flight stage by the stage distance (one ATK is a metric tonne of available payload space flown one kilometre).

Definition Source

ICAO (2004), doc. 9626, Manual on the Regulation of International Air Transport

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Business aviation

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Term business aviation
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corporate aviation

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Broader term

General Aviation (GA)

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Abbreviation

BA

Definition

1. One of the components of general aviation, consists of companies and individuals using aircraft as tools in the conduct of their business.

2. That sector of aviation which concerns the operation or use of aircraft by companies for the carriage of passengers or goods as an aid to the conduct of their business, flown for purposes generally considered not for public hire and piloted by individuals having, at the minimum, a valid commercial pilot license with an instrument rating.

Definition Source

1. ICAO (2007) doc 9885, Guidance on the Use of Emissions Trading for Aviation, p. (viii)

2. ICAO (2009) doc. STA/10-WP/007 (App. C)

Note

Official ICAO definition of the the term "corporate aviation", source: ICAO, Annex 17 (Security):

The non-commercial operation or use of aircraft by a company for the carriage of passengers or goods as an aid to the conduct of company business, flown by a professional pilot employed to fly the aircraft. (Note that corporate aviation is a subset of general aviation).

Lexicon Release

Lexicon Release 2015.2

Cargo air carrier

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Term cargo air carrier
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passenger air carrier

Broader term

air carrier

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Abbreviation

Definition

[an air carrier] primarily involved in the transportation of freight and mail by aircraft.

Definition Source

ICAO (2004), doc, 9626, Manual on the Regulation of International Air Transport

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Charter carrier

Link Semantic Value
Term charter carrier
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air carrier

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Abbreviation

Definition

A non-scheduled air carrier which operates only charter flights.

Definition Source

ICAO (2004), doc. 9626, Manual on the Regulation of International Air Transport

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Commercial air service

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Term commercial air service
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air service

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Abbreviation

Definition

An air service performed by aircraft for the public transport of passengers, mail or cargo for remuneration or hire.

Definition Source

ICAO (2004), doc. 9626, Manual on the Regulation of International Air Transport

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Commercial air transport operation

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Term commercial air transport operation
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Abbreviation

Definition

An aircraft operation involving the transport of passengers, cargo or mail for remuneration or hire.

Definition Source

ICAO (2010) Official definition, Annex 6 (I, II, III) Operation of Aircraft

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Commuter air carrier

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Term caommuter air carrier
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feeder air carrier

Broader term

air carrier

Narrower term


Abbreviation

Definition

[an air carrier which] operates feeder and/or regional services, more often of the point-to-point type, usually with aircraft seating no more than 30 passengers; this capacity limit, however, has been continually growing over the years and may now refer to aircraft with up to 50 seats

Definition Source

ICAO (2004), doc. 9626, Manual on the Regulation of International Air Transport

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Direct air service

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Term direct air service
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through service

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air service

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Abbreviation

Definition

An air service provided between two points by a single aircraft with intermediate stops but without change in flight number.

Definition Source

ICAO (2004), doc. 9626, Manual on the Regulation of International Air Transport

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Domestic air service

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Term domestic air service
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international air service

Broader term

air service

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Abbreviation

Definition

An air service operated wholly within the territory of a State

Definition Source

ICAO (2004), doc, 9626, Manual on the Regulation of International Air Transport

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Feeder air carrier

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Term feeder air carrier
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commuter air carrier

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air carrier

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Abbreviation

Definition

[An air carrier which] operates short-haul services connecting small and regional points to a hub airport, generally using small to medium-capacity aircraft.

Definition Source

ICAO (2004), doc. 9626, Manual on the Regulation of International Air Transport

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Feeder service

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Term feeder service
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air service

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Abbreviation

Definition

An air service offered on regional routes that feeds traffic to major domestic or international services.

Definition Source

ICAO (2004), doc. 9626, Manual on the Regulation of International Air Transport

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Flight time

Link Semantic Value
Term flight time
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Abbreviation

Definition

The total time from the moment an aircraft first moves under its own power for the purpose of taking off until the moment it comes to rest at the end of the flight.

Definition Source

ICAO, Official definition modified by Amdt 20 to An 6/I (10/11/1994), Amdt 15 to An 6/II (10/11/1994), and by Amdt 2 to An 6/III (10/11/1994). Note 2 to the above official definition was added to An 1 by Amdt 161 (5/11/1998), and it also appears in An 6/III.

Note

Note 1.— Flight time as here defined is synonymous with the term 'block-to-block' time or 'chock to chock' time in general usage which is measured from the time an aircraft moves from the loading point until it stops at the unloading point.

Note 2.— Whenever helicopter rotors are engaged, the time will be included in the flight time. (An 1, An 6/I, An 6/II, An 6/III)

Full-service carrier

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Term full-service carrier
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no-frills carrier

low-cost air carrier

Broader term

air carrier

Narrower term


Abbreviation

Definition

an air carrier, typically a traditional national or major carrier that operates on a relatively extensive route network (thus also referred to as a network carrier) and provides a full range of services including different seating classes, in-flight entertainment, meals and beverages, on-board store, and ground facilities such as waiting lounges for premium class passengers or frequent flyer programme members

Definition Source

ICAO (2004), doc. 9626, Manual on the Regulation of International Air Transport

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General Aviation

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Term General Aviation
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General aviation operation

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Abbreviation

GA

Definition

All civil aviation operations other than scheduled air services and non-scheduled air transport operations for remuneration or hire.

Definition Source

ICAO (2006) Doc. 9562, Airport Economics Manual

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International air carrier

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Term international air carrier
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national air carrier

Broader term

air carrier

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Abbreviation

Definition

[an air carrier] that provides air transport services on routes involving more than one State and that may also operate domestic air services.

Definition Source

ICAO (2004), doc. 9626, Manual on the Regulation of International Air Transport

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International air service

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Term International air service
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domestic air service

Broader term

air service

Narrower term


Abbreviation

Definition

An air service which passes through the air space over the territory of more than one State.

Definition Source

ICAO (2006) Official definition, doc 7300/9, Convention on International Civil Aviation

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Low-cost air carrier

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Term low-cost air carrier
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SESAR

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low-cost airline

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Abbreviation

LCC

Definition

An air carrier that has a relatively low-cost structure in comparison with other comparable carriers and offers low fares or rates. Such a carrier may be independent, the division or subsidiary of a major carrier or, in some instances, the ex-charter arm of an airline group.

Definition Source

ICAO (2004) doc. 9626, Manual on the Regulation of International Air Transport

Note

Lexicon Release

Lexicon Release 2015.2

Mega-carrier

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Term mega-carrier
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Broader term

air carrier

Narrower term


Abbreviation

Definition

an expression used to refer to a very large carrier in terms of its scale of operation and/or route network.

Definition Source

ICAO (2004), doc. 9626, Manual on the Regulation of International Air Transport

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National air carrier

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Term national air carrier
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international air carrier

Broader term

air carrier

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Abbreviation

Definition

An expression used to refer to an air carrier, established in accordance with the national law of a State, which is usually the only or the principal air carrier of that State in the provision of air transport services including international air services, and which is regarded as a national instrument in air transport.

Definition Source

ICAO (2004), doc. 9626, Manual on the Regulation of International Air Transport

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No-frills carrier

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Term no-frills carrier
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no-frills airline

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low-cost air carrier

full-service carrier

Broader term

air carrier

Narrower term


Abbreviation

Definition

an air carrier that, unlike a full-service carrier, focuses on providing low-cost air transport service to customers with simple or limited in-flight services.

Definition Source

ICAO (2004), doc. 9626, Manual on the Regulation of International Air Transport

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Non-scheduled air carrier

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Term non-scheduled air carrier
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scheduled air carrier

Broader term

air carrier

Narrower term


Abbreviation

Definition

a non-scheduled air carrier is one whose primary activity is non-scheduled operations.

Definition Source

ICAO (2004), doc. 9626, Manual on the Regulation of International Air Transport

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Non-scheduled air service

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Term '
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scheduled air service

Broader term

air service

Narrower term


Abbreviation

Definition

a commercial air transport service performed as other than a scheduled air service.

Definition Source

ICAO (2004), doc. 9626, Manual on the Regulation of International Air Transport

Note

Though the terms non-scheduled and charter (i.e. a contractual arrangement between an air carrier and an entity hiring or leasing its aircraft) have come to be used interchangeably, it should be noted that not all commercial non-scheduled operations are charter flights. (same source)

Passenger air carrier

Link Semantic Value
Term passenger air carrier
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cargo air carrier

Broader term

air carrier

Narrower term


Abbreviation

Definition

[An air carrier] primarily involved in the transportation of passengers by aircraft (although such aircraft may also carry freight).

Definition Source

ICAO (2004), doc. 9626, Manual on the Regulation of International Air Transport

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Passenger tonne-kilometres performed

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Term passenger tonne-kilometres performed
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revenue-tonne kilometre (RTK)

tonne-kilometres performed (TKP)

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Narrower term


Abbreviation

Definition

Passenger tonne-kilometres performed are obtained by applying a standard weight per passenger to the passenger-kilometres performed.

Definition Source

ICAO (2004), doc. 9626, Manual on the Regulation of International Air Transport

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Passenger-kilometres performed

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Term passenger-kilometres performed
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passenger tonne-kilometres performed

revenue passenger

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Abbreviation

PKP

Definition

A passenger-kilometre is performed when a passenger is carried one kilometre. Calculation of passenger-kilometres equals the sum of the products obtained by multiplying the number of revenue passengers carried on each flight stage by the stage distance. The resultant figure is equal to the number of kilometres travelled by all the passengers.

Definition Source

ICAO, doc. 9180, Civil Aviation Statistics of the World

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Regional air carrier

Link Semantic Value
Term regional air carrier
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SESAR

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regional carrier

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Broader term

air carrier

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Abbreviation

Definition

[an air carrier which] provides short-haul scheduled passenger and freight services, operating mostly turboprop and/or small jet aircraft and connecting small and medium-sized communities with major cities and hubs.

Definition Source

ICAO (2004) doc. 9626, Manual on the Regulation of International Air Transport

Note

Lexicon Release

Lexicon Release 2015.2

Revenue passenger

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Term revenue passenger
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revenue passenger-kilometres (RPK)

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Abbreviation

Definition

a passenger for whose transportation an air carrier receives commercial remuneration.

Definition Source

ICAO (2004), doc. 9626, Manual on the Regulation of International Air Transport

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Revenue passenger-kilometres

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Term revenue passenger-kilometres
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revenue passenger

revenue tonne-kilometre

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Narrower term


Abbreviation

RPK

Definition

The sum of the products obtained by multiplying the number of revenue passengers carried on each flight stage by the stage distance. The resultant figure is equal to the number of kilometres travelled by all revenue passengers.

Definition Source

ICAO (2004), doc. 9626, Manual on the Regulation of International Air Transport

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Revenue tonne-kilometre

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Term revenue tonne-kilometre
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passenger tonne-kilometres performed

revenue passenger-kilometres

Broader term


Narrower term


Abbreviation

RTK

Definition

A revenue tonne-kilometre is generated when a metric tonne of revenue load is carried one kilometre. Where such load includes passenger load, the number of passengers is converted into weight load, usually by multiplying this number by 90 kilogrammes (to include baggage).

Definition Source

ICAO (2004), doc. 9626, Manual on the Regulation of International Air Transport

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Scheduled air carrier

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Term scheduled air carrier
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non-scheduled air carrier

Broader term

air carrier

Narrower term


Abbreviation

Definition

A scheduled air carrier or airline is one that engages mainly in scheduled services (though it may also operate some non-scheduled flights).

Definition Source

ICAO (2004), doc. 9626, Manual on the Regulation of International Air Transport

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Scheduled air service

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Term scheduled air service
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non-scheduled air service

scheduled international air service

Broader term

air service

Narrower term


Abbreviation

Definition

an air service open to use by the general public and operated according to a published timetable or with such a regular frequency that it constitutes an easily recognizable systematic series of flights.

Definition Source

ICAO (2004), doc. 9626, Manual on the Regulation of International Air Transport

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Scheduled international air service

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Term scheduled international air service
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scheduled air service

Broader term

air service

Narrower term


Abbreviation

Definition

a series of flights that possesses all the following characteristics:

a) it passes through the airspace over the territory of more than one State;

b) it is performed by aircraft for the transport of passengers, mail or cargo for remuneration, in such a manner that each flight is open to use by members of the public;

c) it is operated, so as to serve traffic between the same two or more points, either according to a published timetable or with flights so regular or frequent that they constitute a recognizably systematic series.

Definition Source

ICAO (2004), doc. 9626, Manual on the Regulation of International Air Transport

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Shuttle air service

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Term shuttle air service
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Broader term

air service

Narrower term


Abbreviation

Definition

A high-frequency, no reservation passenger air service operated at regular intervals, typically on a city-pair route with high traffic density.

Definition Source

ICAO (2004) Doc. 9626, Manual on the Regulation of International Air Transport

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Tonne-kilometres performed

Link Semantic Value
Term tonne-kilometres performed
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passenger tonne-kilometres performed

Broader term


Narrower term


Abbreviation

TKP

Definition

The sum of the products obtained by multiplying the number of passengers, freight and mail loads carried on each flight stage by the stage (one TKP is a metric tonne of revenue load carried one kilometre).

Definition Source

ICAO (2004), doc. 9626, Manual on the Regulation of International Air Transport

Note

Traffic

Link Semantic Value
Term traffic
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air traffic

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Narrower term


Abbreviation

TFC

Definition

For air transport purposes, traffic means the carriage of passengers, freight and mail.

Definition Source

ICAO/OACI, "International Civil Aviation Vocabulary", Doc. 9713, Vol.1, 1998

Note

see also the more recent official ICAO definition for air traffic

Trunk service

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Term trunk service
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Broader term

air service

Narrower term


Abbreviation

Definition

an air service operated on routes linking major cities, usually with a large volume of traffic.

Definition Source

ICAO (2004), doc. 9626, Manual on the Regulation of International Air Transport

Note