Elbe Tunnel (Hamburg)
E228225
The Elbe Tunnel in Hamburg is a major underwater road tunnel beneath the River Elbe that forms a key traffic artery connecting the northern and southern parts of the city.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Elbe Tunnel (Hamburg) canonical | 1 |
| Old Elbe Tunnel (St. Pauli Elbtunnel) | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2047605 — 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: Elbe Tunnel (Hamburg) Context triple: [A7 motorway, hasBridge, Elbe Tunnel (Hamburg)]
-
A.
Westerscheldetunnel
The Westerscheldetunnel is a major road tunnel in the Netherlands that runs beneath the Western Scheldt estuary, providing a key fixed link between the northern and southern parts of Zeeland.
-
B.
Piet Hein Tunnel
The Piet Hein Tunnel is a major road and tram tunnel in Amsterdam that connects the city center with the Eastern Docklands and the A10 ring road.
-
C.
Beneluxtunnel
The Beneluxtunnel is a major Dutch road and metro tunnel near Rotterdam that carries traffic beneath the Nieuwe Maas river, forming a key link in the region’s transport network.
-
D.
Rügen Bridge
The Rügen Bridge is a modern cable-stayed road bridge in Germany that connects the mainland city of Stralsund with the Baltic Sea island of Rügen, serving as a major transport link in the region.
-
E.
Maastunnel
Maastunnel is a historic traffic tunnel in Rotterdam, the Netherlands, carrying road, bicycle, and pedestrian traffic beneath the Nieuwe Maas river.
- 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: Elbe Tunnel (Hamburg) Target entity description: The Elbe Tunnel in Hamburg is a major underwater road tunnel beneath the River Elbe that forms a key traffic artery connecting the northern and southern parts of the city.
-
A.
Westerscheldetunnel
The Westerscheldetunnel is a major road tunnel in the Netherlands that runs beneath the Western Scheldt estuary, providing a key fixed link between the northern and southern parts of Zeeland.
-
B.
Piet Hein Tunnel
The Piet Hein Tunnel is a major road and tram tunnel in Amsterdam that connects the city center with the Eastern Docklands and the A10 ring road.
-
C.
Beneluxtunnel
The Beneluxtunnel is a major Dutch road and metro tunnel near Rotterdam that carries traffic beneath the Nieuwe Maas river, forming a key link in the region’s transport network.
-
D.
Rügen Bridge
The Rügen Bridge is a modern cable-stayed road bridge in Germany that connects the mainland city of Stralsund with the Baltic Sea island of Rügen, serving as a major transport link in the region.
-
E.
Maastunnel
Maastunnel is a historic traffic tunnel in Rotterdam, the Netherlands, carrying road, bicycle, and pedestrian traffic beneath the Nieuwe Maas river.
- F. None of above. chosen
Statements (44)
| Predicate | Object |
|---|---|
| instanceOf |
road tunnel
ⓘ
transport infrastructure ⓘ underwater tunnel ⓘ |
| belongsTo | federal motorway network of Germany ⓘ |
| cityServed | Hamburg ⓘ |
| connects |
northern Hamburg
ⓘ
southern Hamburg ⓘ |
| constructionType | immersed tube tunnel ⓘ |
| country | Germany ⓘ |
| crosses |
Elbe
ⓘ
surface form:
River Elbe
|
| designedFor | high-capacity urban and long-distance traffic ⓘ |
| firstTubeOpened | 1975 ⓘ |
| function |
key traffic artery in Hamburg
ⓘ
road link between north and south of the Elbe ⓘ |
| hasDirection |
northbound
ⓘ
southbound ⓘ |
| hasEmergencyExits | yes ⓘ |
| hasLanes | 8 ⓘ |
| hasLighting | yes ⓘ |
| hasMaintenanceClosures | yes ⓘ |
| hasMonitoring | traffic control and surveillance systems ⓘ |
| hasNumberOfTubes | 4 ⓘ |
| hasSpeedLimit | generally 80 km/h ⓘ |
| hasToll | no ⓘ |
| hasVentilationSystem | yes ⓘ |
| length |
approximately 1.9 miles
ⓘ
approximately 3.1 kilometres ⓘ |
| locatedIn |
Germany
ⓘ
Hamburg ⓘ state of Hamburg ⓘ |
| locatedOn | A7 between Othmarschen and Waltershof ⓘ |
| locatedUnder |
Elbe
ⓘ
surface form:
River Elbe
|
| notableFor | being one of Germany’s busiest motorway tunnels ⓘ |
| opened | 1975 ⓘ |
| operator |
Hamburg Port Authority
ⓘ
surface form:
Hamburg authority for transport and roads
|
| partOf |
A7 north–south corridor
ⓘ
Autobahn A7 ⓘ
surface form:
Bundesautobahn 7
European route E45 ⓘ |
| region | Hamburg metropolitan region ⓘ |
| roadType | motorway tunnel ⓘ |
| safetyUpgrades | carried out in the 2000s ⓘ |
| thirdTubeOpened | 2002 ⓘ |
| trafficType | motor vehicle traffic ⓘ |
| underpasses | Elbe riverbed ⓘ |
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: Elbe Tunnel (Hamburg) Description of subject: The Elbe Tunnel in Hamburg is a major underwater road tunnel beneath the River Elbe that forms a key traffic artery connecting the northern and southern parts of the city.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Old Elbe Tunnel (St. Pauli Elbtunnel)