Clyde Tunnel
E104742
The Clyde Tunnel is a road tunnel in Glasgow, Scotland, carrying vehicular traffic beneath the River Clyde to connect the city’s north and south banks.
All labels observed (4)
| Label | Occurrences |
|---|---|
| Clyde Tunnel canonical | 6 |
| Clyde Tunnel (road tunnel under river) | 1 |
| Clyde Tunnel approaches | 1 |
| Clyde Tunnel northern entrance | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T808246 — 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: Clyde Tunnel Context triple: [River Clyde, crossedBy, Clyde Tunnel]
-
A.
Robertson Tunnel
Robertson Tunnel is a major light rail tunnel in Portland, Oregon, carrying MAX trains through the West Hills between downtown and the city’s western suburbs.
-
B.
Malinta Tunnel
Malinta Tunnel is a historic underground complex on Corregidor Island in the Philippines that served as a bomb-proof headquarters and hospital for American and Filipino forces during World War II.
-
C.
Queensway Tunnel
The Queensway Tunnel is a road tunnel in northwest England that carries vehicular traffic beneath the River Mersey between Liverpool and the Wirral Peninsula.
-
D.
Downtown Tunnel
The Downtown Tunnel is a major underwater vehicular tunnel in the Hampton Roads region that carries traffic beneath the Elizabeth River between Norfolk and Portsmouth, Virginia.
-
E.
Shandaken Tunnel
The Shandaken Tunnel is an aqueduct in New York State that diverts water from the Schoharie Reservoir to the Esopus Creek as part of the New York City water supply system.
- 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: Clyde Tunnel Target entity description: The Clyde Tunnel is a road tunnel in Glasgow, Scotland, carrying vehicular traffic beneath the River Clyde to connect the city’s north and south banks.
-
A.
Robertson Tunnel
Robertson Tunnel is a major light rail tunnel in Portland, Oregon, carrying MAX trains through the West Hills between downtown and the city’s western suburbs.
-
B.
Malinta Tunnel
Malinta Tunnel is a historic underground complex on Corregidor Island in the Philippines that served as a bomb-proof headquarters and hospital for American and Filipino forces during World War II.
-
C.
Queensway Tunnel
The Queensway Tunnel is a road tunnel in northwest England that carries vehicular traffic beneath the River Mersey between Liverpool and the Wirral Peninsula.
-
D.
Downtown Tunnel
The Downtown Tunnel is a major underwater vehicular tunnel in the Hampton Roads region that carries traffic beneath the Elizabeth River between Norfolk and Portsmouth, Virginia.
-
E.
Shandaken Tunnel
The Shandaken Tunnel is an aqueduct in New York State that diverts water from the Schoharie Reservoir to the Esopus Creek as part of the New York City water supply system.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
road tunnel
ⓘ
subaqueous tunnel ⓘ transport infrastructure ⓘ |
| carries | vehicular traffic ⓘ |
| connects |
north bank of the River Clyde
ⓘ
south bank of the River Clyde ⓘ |
| constructionMethod | submerged tube and cut-and-cover techniques ⓘ |
| constructionStartDate | 1957 ⓘ |
| country | Scotland ⓘ |
| crosses | River Clyde ⓘ |
| designedFor | high traffic volumes ⓘ |
| hasComponent |
northbound road tunnel
ⓘ
pedestrian and cycle passage ⓘ southbound road tunnel ⓘ |
| hasCycleAccess | yes ⓘ |
| hasLighting | internal tunnel lighting system ⓘ |
| hasPedestrianAccess | yes ⓘ |
| hasRestriction |
hazardous loads controls
ⓘ
height restrictions for vehicles ⓘ |
| hasSafetyFeature |
CCTV monitoring
ⓘ
emergency exits ⓘ fire detection system ⓘ |
| hasSpeedLimit | 30 mph ⓘ |
| hasVentilationSystem | mechanical ventilation ⓘ |
| length |
approximately 0.47 miles
ⓘ
approximately 762 metres ⓘ |
| locatedIn |
Glasgow
ⓘ
United Kingdom ⓘ |
| locationNorthPortal |
Whiteinch, Glasgow
ⓘ
linked to:
Partick, Glasgow
|
| locationSouthPortal |
Govan, Glasgow
ⓘ
linked to:
Govan
|
| maintainedBy | Glasgow City Council ⓘ |
| near |
Clyde Arc
ⓘ
Kingston Bridge, Glasgow ⓘ |
| notableFor | being one of the main crossings of the River Clyde in Glasgow ⓘ |
| numberOfRoadTubes | 2 ⓘ |
| openingDate |
1963
ⓘ
1964 ⓘ |
| operator | Glasgow City Council ⓘ |
| owner | Glasgow City Council ⓘ |
| partOf | Glasgow road network ⓘ |
| passesUnder | River Clyde riverbed ⓘ |
| purpose | to provide a road link between north and south Glasgow ⓘ |
| region | West Central Scotland ⓘ |
| roadType | dual carriageway ⓘ |
| significance | major north–south road link in Glasgow ⓘ |
| toll | no ⓘ |
| trafficType | motor vehicles ⓘ |
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: Clyde Tunnel Description of subject: The Clyde Tunnel is a road tunnel in Glasgow, Scotland, carrying vehicular traffic beneath the River Clyde to connect the city’s north and south banks.
Referenced by (9)
Full triples — surface form annotated when it differs from this entity's canonical label.