National highways of Japan

E456771

road network transport infrastructure

The national highways of Japan are a nationwide network of major roads that connect cities, towns, and regions across the country, supporting both long-distance travel and freight transport.

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

All labels observed (13)

Label	Occurrences
National highways of Japan canonical	14
Japanese National Routes	3
Japan National Route network	2
Japanese national highway network	2
Japan National Route authorities	1
Japan national highway network	1
Japan national road network	1
Japanese national highway system	1
Japanese national highways	1
National Routes of Japan	1
National highways of Japan network	1
connected by national highways to Naha	1
national highway network of Japan	1

How this entity was disambiguated

This entity first appeared as the object of triple T4638736 — 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: National highways of Japan
Context triple: [Ebetsu, roadNetwork, National highways of Japan]

A. Honshū expressway network
The Honshū expressway network is an extensive system of high-speed toll expressways that connects major cities and regions across Japan’s largest island, Honshū.
B. Tohoku Expressway
The Tohoku Expressway is a major Japanese toll highway that runs north from the Tokyo area through several prefectures toward the Tohoku region, serving as one of the country’s primary north–south transportation arteries.
C. Seto-Chuo Expressway
The Seto-Chuo Expressway is a major Japanese expressway that forms part of the road network crossing the Seto Inland Sea via the Seto Ohashi Bridge system, linking Honshu and Shikoku.
D. Higashi-Kanto Expressway
The Higashi-Kanto Expressway is a major Japanese expressway in the Kanto region that connects the Tokyo area with Chiba Prefecture and serves as a key route to Narita International Airport.
E. Nishi-Meihan Expressway
Nishi-Meihan Expressway is a major expressway in Japan’s Kansai region that connects parts of Osaka and Nara Prefectures, serving as an important route for regional traffic and logistics.
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: National highways of Japan
Target entity description: The national highways of Japan are a nationwide network of major roads that connect cities, towns, and regions across the country, supporting both long-distance travel and freight transport.

A. Honshū expressway network
The Honshū expressway network is an extensive system of high-speed toll expressways that connects major cities and regions across Japan’s largest island, Honshū.
B. Tohoku Expressway
The Tohoku Expressway is a major Japanese toll highway that runs north from the Tokyo area through several prefectures toward the Tohoku region, serving as one of the country’s primary north–south transportation arteries.
C. Seto-Chuo Expressway
The Seto-Chuo Expressway is a major Japanese expressway that forms part of the road network crossing the Seto Inland Sea via the Seto Ohashi Bridge system, linking Honshu and Shikoku.
D. Higashi-Kanto Expressway
The Higashi-Kanto Expressway is a major Japanese expressway in the Kanto region that connects the Tokyo area with Chiba Prefecture and serves as a key route to Narita International Airport.
E. Nishi-Meihan Expressway
Nishi-Meihan Expressway is a major expressway in Japan’s Kansai region that connects parts of Osaka and Nara Prefectures, serving as an important route for regional traffic and logistics.
F. None of above. chosen

Statements (59)

Predicate	Object
instanceOf	road network ⓘ transport infrastructure ⓘ
abbreviation	R (for Route) ⓘ 国道 ⓘ
administeredBy	Ministry of Land, Infrastructure, Transport and Tourism ⓘ
alsoKnownAs	Japanese national routes ⓘ Kokudō ⓘ
classification	Class 1 national highways ⓘ Class 2 national highways ⓘ general national highways ⓘ high-standard highways ⓘ
connects	airports in Japan ⓘ major cities of Japan ⓘ ports in Japan ⓘ regional centers of Japan ⓘ
country	Japan ⓘ
distinguishedFrom	expressways of Japan ⓘ
hasFeature	directional guide signs ⓘ numbered route markers ⓘ rural two-lane sections ⓘ urban arterial sections ⓘ
hasRouteNumberRange	1–507 ⓘ
includes	Japan National Route 1 ⓘ Japan National Route 101 ⓘ Japan National Route 16 ⓘ Japan National Route 24 ⓘ Japan National Route 246 ⓘ Japan National Route 3 ⓘ Japan National Route 4 ⓘ Japan National Route 43 ⓘ Japan National Route 5 ⓘ Japan National Route 57 ⓘ Japan National Route 58 ⓘ Japan National Route 9 ⓘ
introduced	1952 national highway system reorganization ⓘ
legalBasis	Road Act of Japan ⓘ
maintainedBy	national government of Japan ⓘ prefectural governments of Japan ⓘ
mayInclude	toll sections on high-standard segments ⓘ
networkCoverage	Hokkaidō ⓘ linked to: Hokkaido Honshū ⓘ linked to: Honshu Kyūshū ⓘ linked to: Kyushu Okinawa Prefecture ⓘ Shikoku ⓘ
partOf	Japan road network ⓘ
purpose	freight transport ⓘ intercity connection ⓘ long-distance travel ⓘ
regulates	maximum speed limits ⓘ vehicle weight limits ⓘ
role	backbone of surface transport in Japan ⓘ
signColor	blue ⓘ
signFeature	route number only ⓘ
signShape	shield ⓘ
signTextColor	white ⓘ
tollPolicy	generally toll-free ⓘ
trafficType	buses ⓘ freight trucks ⓘ motor vehicles ⓘ

How these facts were elicited

Referenced by (30)

Full triples — surface form annotated when it differs from this entity's canonical label.

Ebetsu → roadNetwork → National highways of Japan ⓘ

subject linked to: Ebetsu, Hokkaido, Japan

Taira, Iwaki, Fukushima, Japan → roadNetworkPartOf → Japanese national highway system ⓘ

subject linked to: Taira, Fukushima Prefecture, Japan