Gotthard Road Tunnel
E530158
The Gotthard Road Tunnel is a major Swiss Alpine tunnel and one of Europe’s key north–south road links, carrying traffic beneath the Saint-Gotthard Massif.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Gotthard Road Tunnel canonical | 4 |
| Gotthard road tunnel | 2 |
| Gotthard Road Tunnel (northern portal) | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5526397 — 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: Gotthard Road Tunnel Context triple: [European route E35, passesThrough, Gotthard Road Tunnel]
-
A.
Gotthard Base Tunnel
The Gotthard Base Tunnel is a 57-kilometer railway tunnel beneath the Swiss Alps, renowned as one of the world’s longest and deepest traffic tunnels, designed to improve high-speed rail connectivity across Europe.
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B.
Simplon Tunnel
The Simplon Tunnel is a major railway tunnel beneath the Alps connecting Switzerland and Italy, historically significant as one of the longest and most important transalpine rail routes.
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C.
Lötschberg Tunnel
The Lötschberg Tunnel is a major Swiss railway tunnel through the Bernese Alps that provides a key north–south transit route between the cantons of Bern and Valais.
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D.
Fréjus Road Tunnel
The Fréjus Road Tunnel is a major trans-Alpine highway tunnel linking France and Italy through the Alps, serving as an important route for international road traffic.
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E.
Mont Blanc Tunnel
The Mont Blanc Tunnel is a major trans-Alpine road tunnel linking France and Italy beneath the Mont Blanc massif, serving as a key route for international traffic through the Alps.
- 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: Gotthard Road Tunnel Target entity description: The Gotthard Road Tunnel is a major Swiss Alpine tunnel and one of Europe’s key north–south road links, carrying traffic beneath the Saint-Gotthard Massif.
-
A.
Gotthard Base Tunnel
The Gotthard Base Tunnel is a 57-kilometer railway tunnel beneath the Swiss Alps, renowned as one of the world’s longest and deepest traffic tunnels, designed to improve high-speed rail connectivity across Europe.
-
B.
Simplon Tunnel
The Simplon Tunnel is a major railway tunnel beneath the Alps connecting Switzerland and Italy, historically significant as one of the longest and most important transalpine rail routes.
-
C.
Lötschberg Tunnel
The Lötschberg Tunnel is a major Swiss railway tunnel through the Bernese Alps that provides a key north–south transit route between the cantons of Bern and Valais.
-
D.
Fréjus Road Tunnel
The Fréjus Road Tunnel is a major trans-Alpine highway tunnel linking France and Italy through the Alps, serving as an important route for international road traffic.
-
E.
Mont Blanc Tunnel
The Mont Blanc Tunnel is a major trans-Alpine road tunnel linking France and Italy beneath the Mont Blanc massif, serving as a key route for international traffic through the Alps.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
Alpine tunnel
ⓘ
road tunnel ⓘ |
| closedAfterEvent | 2001 fire ⓘ |
| connects |
Airolo
NERFINISHED
ⓘ
Göschenen NERFINISHED ⓘ |
| constructionStartDate | 1970 ⓘ |
| country | Switzerland ⓘ |
| engineeringType | bored tunnel ⓘ |
| function | road transport ⓘ |
| hasNearbyStructure |
Gotthard Pass road
NERFINISHED
ⓘ
Gotthard railway tunnels NERFINISHED ⓘ |
| hasSpeedLimit | generally 80 km/h ⓘ |
| importance |
major trans-Alpine freight corridor
ⓘ
major trans-Alpine passenger corridor ⓘ |
| length |
approximately 10.5 miles
ⓘ
approximately 16.9 kilometres ⓘ |
| locatedIn |
Swiss Alps
NERFINISHED
ⓘ
canton of Ticino NERFINISHED ⓘ canton of Uri NERFINISHED ⓘ |
| locatedUnder | Saint-Gotthard Massif NERFINISHED ⓘ |
| maximumElevation | about 1175 metres above sea level ⓘ |
| notableEvent | major road tunnel fire on 24 October 2001 ⓘ |
| numberOfLanes | 2 ⓘ |
| numberOfTubes | 1 ⓘ |
| openedBy | Swiss Federal Council NERFINISHED ⓘ |
| openingDate | 1980 ⓘ |
| operator | Federal Roads Office of Switzerland NERFINISHED ⓘ |
| owner | Swiss Confederation NERFINISHED ⓘ |
| parallelTo |
Gotthard Base Tunnel
NERFINISHED
ⓘ
Gotthard Rail Tunnel NERFINISHED ⓘ |
| partOf |
A2 motorway
NERFINISHED
ⓘ
European route E35 NERFINISHED ⓘ |
| passesThrough | Gotthard Pass region NERFINISHED ⓘ |
| regionServed |
Northern Europe
NERFINISHED
ⓘ
Southern Europe NERFINISHED ⓘ |
| reopenedAfter | safety upgrades following 2001 fire ⓘ |
| requires | Swiss motorway vignette ⓘ |
| restriction | hazardous materials transport limitations ⓘ |
| role | key north–south road link in Europe ⓘ |
| safetyFeature |
cross-passages to safety galleries
ⓘ
emergency lay-bys ⓘ fire detection systems ⓘ ventilation system ⓘ |
| toll | no special tunnel toll ⓘ |
| trafficDirection | bidirectional ⓘ |
| trafficType |
buses
ⓘ
cars ⓘ trucks ⓘ |
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: Gotthard Road Tunnel Description of subject: The Gotthard Road Tunnel is a major Swiss Alpine tunnel and one of Europe’s key north–south road links, carrying traffic beneath the Saint-Gotthard Massif.
Referenced by (7)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Gotthard road tunnel
this entity surface form:
Gotthard road tunnel
this entity surface form:
Gotthard Road Tunnel (northern portal)