Chuo Shinkansen (maglev) planning and construction
E306035
Chuo Shinkansen (maglev) planning and construction is Japan’s next-generation high-speed magnetic levitation rail project intended to link Tokyo, Nagoya, and Osaka with ultra-fast, low-vibration train service largely via deep underground tunnels.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Chuo Shinkansen (maglev) planning and construction canonical | 1 |
| Yamanashi Maglev Test Line | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2868501 — 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: Chuo Shinkansen (maglev) planning and construction Context triple: [Central Japan Railway Company, notableProject, Chuo Shinkansen (maglev) planning and construction]
-
A.
Shanghai Maglev Train
The Shanghai Maglev Train is a high-speed magnetic levitation railway in Shanghai, China, renowned as one of the fastest commercial train services in the world.
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B.
JR West Shinkansen
JR West Shinkansen is the high-speed bullet train service operated by West Japan Railway Company, connecting major cities across western Japan.
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C.
Sanyo Shinkansen
Sanyo Shinkansen is a high-speed railway line in Japan that connects Osaka with western Honshu cities such as Hiroshima and Fukuoka as part of the Shinkansen network.
-
D.
Tokaido Shinkansen
The Tokaido Shinkansen is Japan’s pioneering high-speed rail line connecting Tokyo with Osaka and other major cities, renowned for its speed, punctuality, and heavy passenger usage.
-
E.
Shinkansen high-speed rail network
The Shinkansen high-speed rail network is Japan’s renowned bullet train system, known for its fast, frequent, and punctual intercity rail services connecting major cities across the country.
- 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: Chuo Shinkansen (maglev) planning and construction Target entity description: Chuo Shinkansen (maglev) planning and construction is Japan’s next-generation high-speed magnetic levitation rail project intended to link Tokyo, Nagoya, and Osaka with ultra-fast, low-vibration train service largely via deep underground tunnels.
-
A.
Shanghai Maglev Train
The Shanghai Maglev Train is a high-speed magnetic levitation railway in Shanghai, China, renowned as one of the fastest commercial train services in the world.
-
B.
JR West Shinkansen
JR West Shinkansen is the high-speed bullet train service operated by West Japan Railway Company, connecting major cities across western Japan.
-
C.
Sanyo Shinkansen
Sanyo Shinkansen is a high-speed railway line in Japan that connects Osaka with western Honshu cities such as Hiroshima and Fukuoka as part of the Shinkansen network.
-
D.
Tokaido Shinkansen
The Tokaido Shinkansen is Japan’s pioneering high-speed rail line connecting Tokyo with Osaka and other major cities, renowned for its speed, punctuality, and heavy passenger usage.
-
E.
Shinkansen high-speed rail network
The Shinkansen high-speed rail network is Japan’s renowned bullet train system, known for its fast, frequent, and punctual intercity rail services connecting major cities across the country.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
high-speed rail project
ⓘ
maglev railway project ⓘ railway infrastructure project ⓘ |
| alignment | Chuo corridor between Tokyo and Osaka ⓘ |
| constructionMethod |
deep underground tunneling
ⓘ
mountain tunnel excavation ⓘ viaduct and elevated structures ⓘ |
| constructionStatus | under construction on Tokyo–Nagoya section ⓘ |
| country | Japan ⓘ |
| designGoal |
high reliability independent of existing Tokaido Shinkansen line
ⓘ
high ride comfort with low vibration ⓘ reduced travel time between Tokyo and Nagoya ⓘ reduced travel time between Tokyo and Osaka ⓘ |
| engineeringChallenge |
long-distance deep underground construction in urban areas
ⓘ
maintaining precise track alignment for maglev levitation ⓘ |
| environmentalChallenge | tunneling impacts on water resources in mountainous areas ⓘ |
| expectedBenefit |
economic development along the Chuo corridor
ⓘ
increased transport capacity between Tokyo and Osaka corridor ⓘ relief of congestion on Tokaido Shinkansen ⓘ |
| fundingModel | primarily financed by JR Central ⓘ |
| notableStructureType | long base tunnels through mountain ranges ⓘ |
| operator |
Central Japan Railway Company
ⓘ
Central Japan Railway Company ⓘ
surface form:
JR Central
|
| plannedCommercialSpeed | around 500 km/h between Tokyo and Nagoya ⓘ |
| plannedFinalTerminus | Osaka Station vicinity ⓘ |
| plannedIntermediateTerminus | Nagoya Station vicinity ⓘ |
| plannedMaximumOperatingSpeed | about 500 km/h ⓘ |
| plannedSection |
Nagoya–Osaka section
ⓘ
Tokyo–Nagoya section ⓘ |
| plannedServiceType | intercity high-speed passenger service ⓘ |
| plannedStartStation | Tokyo Station vicinity ⓘ |
| planningAuthority |
Government of Japan
ⓘ
surface form:
Japanese national government
|
| planningIncludes |
environmental impact assessments
ⓘ
geological surveys ⓘ route selection studies ⓘ urban station location planning ⓘ |
| primaryPurpose |
link Tokyo Nagoya and Osaka with ultra-high-speed rail service
ⓘ
provide low-vibration train service ⓘ |
| projectType | multi-decade phased construction project ⓘ |
| regulatoryFramework | Japan railway business law and related regulations ⓘ |
| routeType |
largely deep underground
ⓘ
tunnel-intensive alignment ⓘ |
| safetyConsideration |
emergency evacuation facilities in tunnels
ⓘ
fire safety in long tunnels ⓘ seismic design for earthquakes ⓘ |
| technologyUsed |
magnetic levitation
ⓘ
superconducting maglev ⓘ |
| testLineUsedForDevelopment |
Chuo Shinkansen (maglev) planning and construction
self-linksurface differs
ⓘ
surface form:
Yamanashi Maglev Test Line
|
| usesRollingStockType | L0 Series maglev trainsets ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Chuo Shinkansen (maglev) planning and construction Description of subject: Chuo Shinkansen (maglev) planning and construction is Japan’s next-generation high-speed magnetic levitation rail project intended to link Tokyo, Nagoya, and Osaka with ultra-fast, low-vibration train service largely via deep underground tunnels.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
Central Japan Railway Company
→
notableProject
→
Chuo Shinkansen (maglev) planning and construction
ⓘ
Chuo Shinkansen (maglev) planning and construction
→
testLineUsedForDevelopment
→
Chuo Shinkansen (maglev) planning and construction
self-linksurface differs
ⓘ
this entity surface form:
Yamanashi Maglev Test Line