Incheon Airport Railroad (AREX)

E650914

airport rail link commuter rail line railway line in South Korea

Incheon Airport Railroad (AREX) is a rail line in South Korea that connects central Seoul with Incheon International Airport and Gimpo International Airport, providing fast airport rail service for travelers.

Try in SPARQL Jump to: Surface forms Disambiguation Statements Elicitation Referenced by

All labels observed (6)

Label	Occurrences
공항철도	2
AREX Incheon Airport Maglev Line	1
Incheon Airport Railroad (AREX) canonical	1
Incheon Airport Railroad trains	1
Incheon International Airport Railroad	1
Incheon International Airport Railroad (AREX)	1

How this entity was disambiguated

This entity first appeared as the object of triple T7206859 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07

Target entity: Incheon Airport Railroad (AREX)
Context triple: [Yeongjong Island, hasPublicTransport, Incheon Airport Railroad (AREX)]

A. Incheon Subway
Incheon Subway is the urban rapid transit system serving the city of Incheon, South Korea, connecting major districts and linking with the Seoul Metropolitan Subway network.
B. Daejeon Metro
Daejeon Metro is the urban rapid transit system serving the city of Daejeon in South Korea.
C. Daegu Metro
Daegu Metro is the urban rapid transit system serving the city of Daegu in South Korea, providing high-capacity rail transportation across the metropolitan area.
D. Busan Metro
Busan Metro is the rapid transit system serving the city of Busan, South Korea, providing extensive urban and suburban rail transportation across the metropolitan area.
E. Suin–Bundang Line
The Suin–Bundang Line is a major commuter rail line in the Seoul metropolitan area that connects southeastern Seoul with surrounding cities such as Seongnam, Yongin, and Suwon.
F. None of above. chosen
G. Unsure - the case is ambiguous/there is not enough information to decide.

NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07

Target entity: Incheon Airport Railroad (AREX)
Target entity description: Incheon Airport Railroad (AREX) is a rail line in South Korea that connects central Seoul with Incheon International Airport and Gimpo International Airport, providing fast airport rail service for travelers.

A. Incheon Subway
Incheon Subway is the urban rapid transit system serving the city of Incheon, South Korea, connecting major districts and linking with the Seoul Metropolitan Subway network.
B. Daejeon Metro
Daejeon Metro is the urban rapid transit system serving the city of Daejeon in South Korea.
C. Daegu Metro
Daegu Metro is the urban rapid transit system serving the city of Daegu in South Korea, providing high-capacity rail transportation across the metropolitan area.
D. Busan Metro
Busan Metro is the rapid transit system serving the city of Busan, South Korea, providing extensive urban and suburban rail transportation across the metropolitan area.
E. Suin–Bundang Line
The Suin–Bundang Line is a major commuter rail line in the Seoul metropolitan area that connects southeastern Seoul with surrounding cities such as Seongnam, Yongin, and Suwon.
F. None of above. chosen

Statements (50)

Predicate	Object
instanceOf	airport rail link ⓘ commuter rail line ⓘ railway line in South Korea ⓘ
connectsCentralArea	central Seoul ⓘ
connectsWith	AREX City Airport Terminal at Seoul Station ⓘ Gyeongui–Jungang Line ⓘ Seoul Metropolitan Subway Line 1 ⓘ linked to: Seoul Subway Line 1 Seoul Metropolitan Subway Line 2 ⓘ linked to: Seoul Subway Line 2 Seoul Metropolitan Subway Line 4 ⓘ linked to: Seoul Subway Line 4 Seoul Metropolitan Subway Line 5 ⓘ linked to: Seoul Subway Line 5 Seoul Metropolitan Subway Line 6 ⓘ linked to: Seoul Subway Line 6 Seoul Metropolitan Subway Line 9 ⓘ linked to: Seoul Subway Line 9 Suin–Bundang Line ⓘ
constructionStart	2001 ⓘ
country	South Korea ⓘ
electrification	25 kV AC overhead line ⓘ
fareSystem	integrated with Seoul Metropolitan Subway fare system ⓘ
fullLineOpeningDate	2010-12-29 ⓘ
fullName	Incheon International Airport Railroad ⓘ linked to: Incheon Airport Railroad (AREX)
hasFacility	in-town check-in at Seoul Station City Airport Terminal ⓘ
hasRollingStock	electric multiple units ⓘ
intermediateStation	Gimpo International Airport Station ⓘ
languageOfSignage	Chinese ⓘ English ⓘ Japanese ⓘ Korean ⓘ
locale	Seoul Metropolitan Area ⓘ linked to: Seoul Capital Area
openingDate	2007-03-23 ⓘ
operator	Airport Railroad Co., Ltd. ⓘ
owner	Republic of Korea ⓘ linked to: South Korea
primaryFunction	fast rail link between central Seoul and Incheon International Airport ⓘ
providesService	all-stop trains serving intermediate stations ⓘ non-stop express trains between Seoul Station and Incheon International Airport ⓘ
purpose	airport access for travelers ⓘ
railGauge	standard gauge ⓘ
region	Gyeonggi Province ⓘ Incheon ⓘ
servesAirport	Gimpo International Airport ⓘ Incheon International Airport ⓘ
servesCity	Seoul ⓘ
serviceType	all-stop service ⓘ express service ⓘ
shortName	AREX ⓘ
terminusStation	Incheon International Airport Terminal 1 Station ⓘ Incheon International Airport Terminal 2 Station ⓘ Seoul Station ⓘ
ticketType	T-money compatible ⓘ single-journey ticket ⓘ
timeZone	Korea Standard Time ⓘ
trackConfiguration	double track ⓘ

How these facts were elicited