UIC wheel arrangement classification
E480111
UIC wheel arrangement classification is a European system for describing the axle and wheel configurations of locomotives and multiple units using a standardized alphanumeric code.
All labels observed (2)
| Label | Occurrences |
|---|---|
| UIC technical standards for rolling stock | 1 |
| UIC wheel arrangement classification canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4923612 — 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: UIC wheel arrangement classification Context triple: [American Association of Railroads wheel arrangement classification system, comparedWith, UIC wheel arrangement classification]
-
A.
American Association of Railroads wheel arrangement classification system
The American Association of Railroads wheel arrangement classification system is a standardized notation used in North America to describe the configuration and number of axles and wheels on locomotives and rail vehicles.
-
B.
Siemens ACS-64
The Siemens ACS-64 is a high-speed, electric locomotive used by Amtrak for passenger rail service in the United States.
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C.
USRA standard freight car designs
USRA standard freight car designs were a series of standardized freight car types created during World War I to simplify and unify railroad equipment across U.S. railroads.
-
D.
CP Class 2240 EMU
The CP Class 2240 EMU is a series of electric multiple unit trains operated by Comboios de Portugal, primarily used for suburban and regional passenger services.
-
E.
PA5 railcar
The PA5 railcar is a modern electric multiple unit train used on the PATH rapid transit system serving New York and New Jersey.
- 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: UIC wheel arrangement classification Target entity description: UIC wheel arrangement classification is a European system for describing the axle and wheel configurations of locomotives and multiple units using a standardized alphanumeric code.
-
A.
American Association of Railroads wheel arrangement classification system
The American Association of Railroads wheel arrangement classification system is a standardized notation used in North America to describe the configuration and number of axles and wheels on locomotives and rail vehicles.
-
B.
Siemens ACS-64
The Siemens ACS-64 is a high-speed, electric locomotive used by Amtrak for passenger rail service in the United States.
-
C.
USRA standard freight car designs
USRA standard freight car designs were a series of standardized freight car types created during World War I to simplify and unify railroad equipment across U.S. railroads.
-
D.
CP Class 2240 EMU
The CP Class 2240 EMU is a series of electric multiple unit trains operated by Comboios de Portugal, primarily used for suburban and regional passenger services.
-
E.
PA5 railcar
The PA5 railcar is a modern electric multiple unit train used on the PATH rapid transit system serving New York and New Jersey.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
railway classification system
ⓘ
technical standard ⓘ wheel arrangement classification system ⓘ |
| abbreviation | UIC classification ⓘ |
| appliesTo |
diesel multiple units
ⓘ
electric multiple units ⓘ locomotives ⓘ railcars ⓘ steam locomotives ⓘ |
| basedOn | axle arrangement ⓘ |
| comparedWith |
AAR wheel arrangement classification
ⓘ
Whyte notation ⓘ |
| describes |
bogie configuration
ⓘ
driving axles ⓘ non‑driving axles ⓘ number of axles ⓘ |
| developedBy | International Union of Railways ⓘ |
| digitMeaning |
1 denotes one non‑powered axle
ⓘ
2 denotes two non‑powered axles ⓘ 3 denotes three non‑powered axles ⓘ |
| domain | rail transport engineering ⓘ |
| exampleCode |
1′D1′
ⓘ
2′Bo′ ⓘ Bo′Bo′ ⓘ Co′Co′ ⓘ |
| goal | provide a uniform international description of axle arrangements ⓘ |
| hasFeature |
can represent complex multi‑section units
ⓘ
distinguishes powered and non‑powered axles ⓘ indicates articulation between vehicle sections ⓘ indicates bogie‑mounted axles ⓘ |
| letterMeaning |
A denotes one powered axle
ⓘ
B denotes two powered axles ⓘ C denotes three powered axles ⓘ D denotes four powered axles ⓘ |
| notationType | alphanumeric code ⓘ |
| standardizedIn | UIC leaflets ⓘ |
| startTime | 20th century ⓘ |
| usedBy |
railway administrations
ⓘ
railway engineers ⓘ rolling stock manufacturers ⓘ |
| usedIn |
Europe
ⓘ
many countries outside Europe ⓘ |
| usesSymbol |
apostrophe to indicate bogies
ⓘ
letters for powered axles ⓘ numbers for non‑powered axles ⓘ parentheses to group axles in bogies ⓘ plus sign to indicate articulated units ⓘ |
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: UIC wheel arrangement classification Description of subject: UIC wheel arrangement classification is a European system for describing the axle and wheel configurations of locomotives and multiple units using a standardized alphanumeric code.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
American Association of Railroads wheel arrangement classification system
→
comparedWith
→
UIC wheel arrangement classification
ⓘ
linked to: UIC wheel arrangement classification