Lyon–Turin rail axis
E174504
binational project company
freight railway project
high-speed rail project
railway infrastructure project
transalpine railway
The Lyon–Turin rail axis is a major transalpine high-speed and freight railway project linking Lyon in France with Turin in Italy through long base tunnels under the Alps to improve cross-border transport.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Lyon–Turin rail axis canonical | 2 |
| Italy–France transalpine corridor | 1 |
| Lyon–Turin railway corridor | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1534208 — 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: Lyon–Turin rail axis Context triple: [Fréjus Rail Tunnel, partOf, Lyon–Turin rail axis]
-
A.
Genoa–Ventimiglia railway
The Genoa–Ventimiglia railway is a major coastal rail line in northwestern Italy that runs along the Ligurian Sea, connecting Genoa with towns up to the French border.
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B.
Lyon–Grenoble railway
The Lyon–Grenoble railway is a major French rail line connecting the city of Lyon with Grenoble, serving as an important corridor for both regional and long-distance passenger and freight traffic in southeastern France.
-
C.
Lyon–Bourg-en-Bresse railway
The Lyon–Bourg-en-Bresse railway is a key regional rail line in eastern France that connects the city of Lyon with Bourg-en-Bresse, serving both commuter and intercity traffic.
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D.
Basel–Mulhouse–Freiburg transport corridor
The Basel–Mulhouse–Freiburg transport corridor is a major transnational hub in the Upper Rhine region that integrates road, rail, and air links between France, Switzerland, and Germany around the tri-city area.
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E.
Geneva–Lyon railway
The Geneva–Lyon railway is an international rail line linking the Swiss city of Geneva with Lyon in France, serving as a key passenger and freight corridor between the two countries.
- 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: Lyon–Turin rail axis Target entity description: The Lyon–Turin rail axis is a major transalpine high-speed and freight railway project linking Lyon in France with Turin in Italy through long base tunnels under the Alps to improve cross-border transport.
-
A.
Genoa–Ventimiglia railway
The Genoa–Ventimiglia railway is a major coastal rail line in northwestern Italy that runs along the Ligurian Sea, connecting Genoa with towns up to the French border.
-
B.
Lyon–Grenoble railway
The Lyon–Grenoble railway is a major French rail line connecting the city of Lyon with Grenoble, serving as an important corridor for both regional and long-distance passenger and freight traffic in southeastern France.
-
C.
Lyon–Bourg-en-Bresse railway
The Lyon–Bourg-en-Bresse railway is a key regional rail line in eastern France that connects the city of Lyon with Bourg-en-Bresse, serving both commuter and intercity traffic.
-
D.
Basel–Mulhouse–Freiburg transport corridor
The Basel–Mulhouse–Freiburg transport corridor is a major transnational hub in the Upper Rhine region that integrates road, rail, and air links between France, Switzerland, and Germany around the tri-city area.
-
E.
Geneva–Lyon railway
The Geneva–Lyon railway is an international rail line linking the Swiss city of Geneva with Lyon in France, serving as a key passenger and freight corridor between the two countries.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
binational project company
ⓘ
freight railway project ⓘ high-speed rail project ⓘ railway infrastructure project ⓘ transalpine railway ⓘ |
| borderCrossing |
French–Italian border
ⓘ
surface form:
France–Italy border
|
| connects |
Auvergne-Rhône-Alpes region
ⓘ
Piedmont ⓘ
surface form:
Piedmont region
|
| corridorRole | key link between Spain–France–Italy on Mediterranean axis ⓘ |
| country |
France
ⓘ
France ⓘ Italy ⓘ Italy ⓘ |
| designedFor |
heavy freight trains
ⓘ
high-speed passenger trains ⓘ |
| engineeringFeature | very long base tunnel beneath main Alpine ridge ⓘ |
| environmentalGoal |
reduce greenhouse gas emissions from Alpine transport
ⓘ
reduce heavy truck traffic through Alpine road passes ⓘ |
| funding |
European Union co-financing
ⓘ
French state funding ⓘ Italian state funding ⓘ |
| gauge | standard gauge ⓘ |
| hasPart |
Mont d’Ambin Base Tunnel
ⓘ
access lines in France ⓘ access lines in Italy ⓘ international section between Saint-Jean-de-Maurienne and Susa/Bussoleno ⓘ |
| includes | long base tunnels under the Alps ⓘ |
| locatedIn | Alps ⓘ |
| managingAuthority | TELT ⓘ |
| operator | to be operated by French and Italian railway undertakings ⓘ |
| partOf |
TEN-T Mediterranean Corridor
ⓘ
Trans-European transport network ⓘ
surface form:
Trans-European Transport Network
|
| passThrough |
Maurienne Valley vicinity
ⓘ
Susa Valley ⓘ
surface form:
Susa Valley vicinity
|
| planningLevel | binational treaty-based project ⓘ |
| purpose |
develop high-speed passenger services between Lyon and Turin
ⓘ
improve cross-border transport between France and Italy ⓘ increase rail freight capacity across the Alps ⓘ shift freight traffic from road to rail ⓘ |
| replaces | older Alpine rail routes with lower capacity ⓘ |
| status | under construction ⓘ |
| terminus |
Lyon
ⓘ
Turin ⓘ |
| transportMode | rail ⓘ |
| treatyPartner |
French Republic
ⓘ
Italian Republic ⓘ |
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: Lyon–Turin rail axis Description of subject: The Lyon–Turin rail axis is a major transalpine high-speed and freight railway project linking Lyon in France with Turin in Italy through long base tunnels under the Alps to improve cross-border transport.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Lyon–Turin railway corridor