TTC gauge
E824391
TTC gauge is the unique, slightly wider-than-standard track gauge used by Toronto’s streetcar and subway systems.
All labels observed (1)
| Label | Occurrences |
|---|---|
| TTC gauge canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T9832865 — 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: TTC gauge Context triple: [Toronto gauge, alsoKnownAs, TTC gauge]
-
A.
TTC
TTC is an organizational partner of the 3rd Generation Partnership Project (3GPP), contributing to the development and standardization of mobile telecommunications technologies.
-
B.
TTC
The TTC is a high-level transatlantic forum where the European Union and the United States coordinate on trade, economic, and technology policy issues.
-
C.
TTC
TTC is the station code for The Trafford Centre tram stop on Greater Manchester's Metrolink light rail network.
-
D.
TTE
TTE is the stock ticker symbol for TotalEnergies SE, a major French multinational energy company involved in oil, gas, and renewable energy.
-
E.
GTS
GTS is a high-performance, sport-oriented variant of the Holden Monaro produced by Holden’s performance division.
- 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: TTC gauge Target entity description: TTC gauge is the unique, slightly wider-than-standard track gauge used by Toronto’s streetcar and subway systems.
-
A.
TTC
TTC is an organizational partner of the 3rd Generation Partnership Project (3GPP), contributing to the development and standardization of mobile telecommunications technologies.
-
B.
TTC
The TTC is a high-level transatlantic forum where the European Union and the United States coordinate on trade, economic, and technology policy issues.
-
C.
TTC
TTC is the station code for The Trafford Centre tram stop on Greater Manchester's Metrolink light rail network.
-
D.
TTE
TTE is the stock ticker symbol for TotalEnergies SE, a major French multinational energy company involved in oil, gas, and renewable energy.
-
E.
GTS
GTS is a high-performance, sport-oriented variant of the Holden Monaro produced by Holden’s performance division.
- F. None of above. chosen
Statements (44)
| Predicate | Object |
|---|---|
| instanceOf |
broad gauge
ⓘ
railway track gauge ⓘ |
| allows | wider carbody clearance ⓘ |
| alsoKnownAs | Toronto gauge ⓘ |
| appliesTo |
Line 1 Yonge–University
ⓘ
Line 2 Bloor–Danforth ⓘ Line 3 Scarborough (former) ⓘ
linked to:
Line 3 Scarborough
Line 4 Sheppard ⓘ TTC heavy rail subway lines ⓘ TTC streetcar network ⓘ
linked to:
TTC network
|
| category |
Rail gauges in Canada
ⓘ
Rail infrastructure in Toronto ⓘ |
| comparedToStandardGauge | 1435 mm ⓘ |
| country | Canada ⓘ |
| dateOfFirstUse | 19th century ⓘ |
| designedFor | streetcar operation in mixed traffic ⓘ |
| distinctFrom |
broad gauge (Indian 1676 mm)
ⓘ
metre gauge ⓘ standard gauge ⓘ |
| governingBody | Toronto Transit Commission ⓘ |
| historicalReason |
chosen to prevent early mainline railway use of streetcar tracks
ⓘ
continuity with early Toronto street railway practice ⓘ |
| incompatibleWith | standard gauge rolling stock without modification ⓘ |
| introducedBy |
Toronto Street Railway Company
ⓘ
linked to:
Toronto Railway Company
|
| location | Toronto ⓘ |
| maintenanceBy | Toronto Transit Commission ⓘ |
| notUsedBy |
GO Transit rail network
ⓘ
linked to:
GO Transit
Line 5 Eglinton ⓘ Line 6 Finch West ⓘ mainline Canadian railways ⓘ |
| operator | Toronto Transit Commission ⓘ |
| partOf |
Toronto Transit Commission network
ⓘ
linked to:
TTC network
|
| region | Greater Toronto Area ⓘ |
| safetyImplication | prevents through-running with standard gauge railways ⓘ |
| trackGaugeWidth |
1495 mm
ⓘ
4 ft 10 7⁄8 in ⓘ |
| usedBy |
Toronto Transit Commission
ⓘ
Toronto streetcar system ⓘ Toronto subway system ⓘ
linked to:
Toronto subway
|
| usedOnInfrastructureType |
streetcar tracks
ⓘ
subway tracks ⓘ |
| usedOnVehicleType |
TTC streetcars
ⓘ
linked to:
TTC broad gauge
TTC subway trains ⓘ
linked to:
Toronto subway
|
| widerThan | standard gauge ⓘ |
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: TTC gauge Description of subject: TTC gauge is the unique, slightly wider-than-standard track gauge used by Toronto’s streetcar and subway systems.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.