Advanced Passenger Train
E145741
The Advanced Passenger Train was a pioneering British high-speed tilting train developed by British Rail in the 1970s and 1980s to enable faster travel on existing curving tracks.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Advanced Passenger Train canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1273336 — 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: Advanced Passenger Train Context triple: [British Rail, introducedRollingStockFamily, Advanced Passenger Train]
-
A.
High Speed Train
The High Speed Train is a British high-speed diesel-powered passenger train, best known for its long-distance intercity services and record-setting performance on the UK rail network.
-
B.
MARC Train
MARC Train is a commuter rail service operating in Maryland and the surrounding region, connecting cities such as Washington, D.C., Baltimore, and Martinsburg.
-
C.
Amtrak Capitol Limited
Amtrak Capitol Limited is a long-distance passenger train operated by Amtrak that runs overnight between Washington, D.C., and Chicago, serving major cities and scenic routes along the former Baltimore & Ohio Railroad.
-
D.
National Limited passenger train
The National Limited passenger train was a prominent long-distance streamliner operated by the Baltimore and Ohio Railroad, connecting major Midwestern and East Coast cities in the mid-20th century.
-
E.
Amtrak Silver Service
Amtrak Silver Service is a pair of long-distance passenger train routes along the U.S. East Coast, primarily connecting New York City and Miami with intermediate stops in major cities.
- 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: Advanced Passenger Train Target entity description: The Advanced Passenger Train was a pioneering British high-speed tilting train developed by British Rail in the 1970s and 1980s to enable faster travel on existing curving tracks.
-
A.
High Speed Train
The High Speed Train is a British high-speed diesel-powered passenger train, best known for its long-distance intercity services and record-setting performance on the UK rail network.
-
B.
MARC Train
MARC Train is a commuter rail service operating in Maryland and the surrounding region, connecting cities such as Washington, D.C., Baltimore, and Martinsburg.
-
C.
Amtrak Capitol Limited
Amtrak Capitol Limited is a long-distance passenger train operated by Amtrak that runs overnight between Washington, D.C., and Chicago, serving major cities and scenic routes along the former Baltimore & Ohio Railroad.
-
D.
National Limited passenger train
The National Limited passenger train was a prominent long-distance streamliner operated by the Baltimore and Ohio Railroad, connecting major Midwestern and East Coast cities in the mid-20th century.
-
E.
Amtrak Silver Service
Amtrak Silver Service is a pair of long-distance passenger train routes along the U.S. East Coast, primarily connecting New York City and Miami with intermediate stops in major cities.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
high-speed train
ⓘ
prototype train ⓘ tilting train ⓘ |
| commercialServiceEnd | mid-1980s ⓘ |
| commercialServiceStart | 1979 ⓘ |
| countryOfOrigin | United Kingdom ⓘ |
| designedForRailway | West Coast Main Line ⓘ |
| developer | British Rail ⓘ |
| developmentStart | early 1970s ⓘ |
| goal |
improve passenger comfort on curves
ⓘ
reduce journey times without new high-speed lines ⓘ |
| hasVariant |
APT-E
ⓘ
APT-E ⓘ
surface form:
APT-P
APT-E ⓘ
surface form:
APT-S
|
| heritageStatus | several vehicles preserved ⓘ |
| inception | 1970s ⓘ |
| influenced |
British Rail Class 390
ⓘ
British Rail Class 91 ⓘ InterCity 225 ⓘ Class 390 Pendolino ⓘ
surface form:
Pendolino family
|
| mainDevelopmentPeriod |
1970s
ⓘ
1980s ⓘ |
| manufacturer | British Rail Engineering Limited ⓘ |
| maximumDesignSpeed | 155 mph ⓘ |
| notableFeature |
computer-controlled tilt system
ⓘ
distributed power ⓘ hydrokinetic brakes ⓘ lightweight articulated construction ⓘ |
| notableProblem |
public criticism after service introduction
ⓘ
reliability issues in early service ⓘ |
| operator | British Rail ⓘ |
| plannedProductionVersion | APT-S ⓘ |
| powerType |
electric
ⓘ
gas-turbine ⓘ |
| preservedAt |
Crewe Heritage Centre
ⓘ
National Railway Museum ⓘ |
| prototypeDesignation |
APT-E
ⓘ
APT-P ⓘ |
| purpose |
faster travel on existing curving tracks
ⓘ
high-speed passenger service ⓘ |
| railwayCompany | British Rail ⓘ |
| railwaySignificance |
early high-speed train for conventional tracks
ⓘ
pioneering tilting train technology ⓘ |
| recordedServiceSpeed | around 150 mph ⓘ |
| status | withdrawn from regular service ⓘ |
| tiltAngle | up to 9 degrees ⓘ |
| tiltingMechanism | active tilting ⓘ |
| trackGauge | standard gauge ⓘ |
| trialServiceStart | late 1970s ⓘ |
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: Advanced Passenger Train Description of subject: The Advanced Passenger Train was a pioneering British high-speed tilting train developed by British Rail in the 1970s and 1980s to enable faster travel on existing curving tracks.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.