CTA 2200-series railcars
E437012
The CTA 2200-series railcars were a fleet of Chicago 'L' rapid transit cars built in the late 1960s, notable for their fluted stainless-steel sides and “blinker” door configuration, which served the system for several decades before retirement.
All labels observed (2)
| Label | Occurrences |
|---|---|
| CTA 2200-series railcars canonical | 1 |
| CTA 2400-series railcars | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4414642 — 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: CTA 2200-series railcars Context triple: [CTA 5000-series railcars, replacedRollingStock, CTA 2200-series railcars]
-
A.
CTA 2600-series railcars
The CTA 2600-series railcars are a fleet of Chicago 'L' rapid transit cars introduced in the 1980s, known for their stainless-steel bodies and long service on multiple lines in the system.
-
B.
CTA 3200-series railcars
The CTA 3200-series railcars are a fleet of Chicago "L" rapid transit cars introduced in the early 1990s, known for serving lines such as the Orange Line with modernized features compared to earlier series.
-
C.
CTA 5000-series railcars
The CTA 5000-series railcars are a modern generation of Chicago "L" rapid transit cars featuring improved accessibility, digital signage, and enhanced passenger comfort and safety systems.
-
D.
Bombardier Flexity Classic
The Bombardier Flexity Classic is a family of low-floor, multi-section trams used in various cities worldwide, designed for reliable, accessible urban light rail service.
-
E.
Bombardier Flexity Swift
The Bombardier Flexity Swift is a family of modular, high-floor light rail and tram vehicles designed for rapid transit operations in urban and suburban networks worldwide.
- 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: CTA 2200-series railcars Target entity description: The CTA 2200-series railcars were a fleet of Chicago 'L' rapid transit cars built in the late 1960s, notable for their fluted stainless-steel sides and “blinker” door configuration, which served the system for several decades before retirement.
-
A.
CTA 2600-series railcars
The CTA 2600-series railcars are a fleet of Chicago 'L' rapid transit cars introduced in the 1980s, known for their stainless-steel bodies and long service on multiple lines in the system.
-
B.
CTA 3200-series railcars
The CTA 3200-series railcars are a fleet of Chicago "L" rapid transit cars introduced in the early 1990s, known for serving lines such as the Orange Line with modernized features compared to earlier series.
-
C.
CTA 5000-series railcars
The CTA 5000-series railcars are a modern generation of Chicago "L" rapid transit cars featuring improved accessibility, digital signage, and enhanced passenger comfort and safety systems.
-
D.
Bombardier Flexity Classic
The Bombardier Flexity Classic is a family of low-floor, multi-section trams used in various cities worldwide, designed for reliable, accessible urban light rail service.
-
E.
Bombardier Flexity Swift
The Bombardier Flexity Swift is a family of modular, high-floor light rail and tram vehicles designed for rapid transit operations in urban and suburban networks worldwide.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
Chicago "L" rolling stock
ⓘ
rapid transit railcar series ⓘ |
| brakeSystem |
dynamic brakes
ⓘ
pneumatic brakes ⓘ |
| carbodyFeature | fluted stainless-steel sides ⓘ |
| carbodyMaterial | stainless steel ⓘ |
| carNumbers | 2201–2350 ⓘ |
| collectionMethod | contact shoe ⓘ |
| constructionEnd | 1970 ⓘ |
| constructionStart | 1969 ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| countryOfManufacture | United States NERFINISHED ⓘ |
| couplingType | Scharfenberg coupler ⓘ |
| designedBy | Budd Company engineers ⓘ |
| designedFor | high-platform rapid transit ⓘ |
| designInfluence | Budd Pioneer III technology NERFINISHED ⓘ |
| doorConfiguration | blinker doors ⓘ |
| doorsPerSide | 2 ⓘ |
| doorType | single-leaf blinker doors ⓘ |
| electricSystem | 600 V DC third rail ⓘ |
| enteredService | 1969 ⓘ |
| fleetSuccessor |
CTA 2600-series railcars
NERFINISHED
ⓘ
CTA 5000-series railcars NERFINISHED ⓘ |
| formation | married pairs ⓘ |
| interiorFeature |
longitudinal seating near doors
ⓘ
transverse seating sections ⓘ |
| manufacturer |
Budd Company
NERFINISHED
ⓘ
Budd Company of Philadelphia NERFINISHED ⓘ |
| notableFor |
blinker door configuration
ⓘ
first stainless-steel cars on the Chicago "L" ⓘ fluted stainless-steel car sides ⓘ long service life exceeding four decades ⓘ |
| numberBuilt | 150 ⓘ |
| operator | Chicago Transit Authority ⓘ |
| railwaySystem | Chicago "L" NERFINISHED ⓘ |
| region | Chicago, Illinois NERFINISHED ⓘ |
| retired | 2013 ⓘ |
| safetyFeature | blinker doors restricting door openings ⓘ |
| someUnitsPreservedBy |
Chicago Transit Authority (heritage fleet)
NERFINISHED
ⓘ
Illinois Railway Museum NERFINISHED ⓘ |
| status | retired from revenue service ⓘ |
| trackGauge | standard gauge ⓘ |
| usedOnLine |
Blue Line
NERFINISHED
ⓘ
Congress branch ⓘ Douglas branch NERFINISHED ⓘ Lake-Dan Ryan service (early years) NERFINISHED ⓘ O'Hare branch NERFINISHED ⓘ West-Northwest Route NERFINISHED ⓘ |
| yearOfIntroduction | 1969 ⓘ |
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: CTA 2200-series railcars Description of subject: The CTA 2200-series railcars were a fleet of Chicago 'L' rapid transit cars built in the late 1960s, notable for their fluted stainless-steel sides and “blinker” door configuration, which served the system for several decades before retirement.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
CTA 2400-series railcars