Transbay Joint Powers Authority
E789712
The Transbay Joint Powers Authority is a regional government agency in San Francisco responsible for planning, building, and operating the Transbay transit facilities, including the Salesforce Transit Center.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Transbay Joint Powers Authority canonical | 4 |
| Transbay Transit Center Program | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T9285840 — 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: Transbay Joint Powers Authority Context triple: [Salesforce Transit Center, ownedBy, Transbay Joint Powers Authority]
-
A.
Santa Clara Valley Transportation Authority
The Santa Clara Valley Transportation Authority is the public transit agency that operates bus, light rail, and related transportation services throughout Santa Clara County in California’s Silicon Valley.
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B.
San Francisco County Transportation Authority
The San Francisco County Transportation Authority is the county’s transportation planning and funding agency, responsible for developing and overseeing major transit, roadway, and mobility projects in San Francisco.
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C.
San Mateo County Transportation Authority
The San Mateo County Transportation Authority is a public agency responsible for planning, funding, and delivering transportation and congestion-relief projects within San Mateo County, California.
-
D.
Solano Transportation Authority
Solano Transportation Authority is a public agency that plans, funds, and coordinates transportation projects and services within Solano County, California.
-
E.
Alameda-Contra Costa Transit District
The Alameda-Contra Costa Transit District is a public transit agency serving the East Bay region of the San Francisco Bay Area, primarily providing bus services across Alameda and Contra Costa counties.
- 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: Transbay Joint Powers Authority Target entity description: The Transbay Joint Powers Authority is a regional government agency in San Francisco responsible for planning, building, and operating the Transbay transit facilities, including the Salesforce Transit Center.
-
A.
Santa Clara Valley Transportation Authority
The Santa Clara Valley Transportation Authority is the public transit agency that operates bus, light rail, and related transportation services throughout Santa Clara County in California’s Silicon Valley.
-
B.
San Francisco County Transportation Authority
The San Francisco County Transportation Authority is the county’s transportation planning and funding agency, responsible for developing and overseeing major transit, roadway, and mobility projects in San Francisco.
-
C.
San Mateo County Transportation Authority
The San Mateo County Transportation Authority is a public agency responsible for planning, funding, and delivering transportation and congestion-relief projects within San Mateo County, California.
-
D.
Solano Transportation Authority
Solano Transportation Authority is a public agency that plans, funds, and coordinates transportation projects and services within Solano County, California.
-
E.
Alameda-Contra Costa Transit District
The Alameda-Contra Costa Transit District is a public transit agency serving the East Bay region of the San Francisco Bay Area, primarily providing bus services across Alameda and Contra Costa counties.
- F. None of above. chosen
Statements (34)
| Predicate | Object |
|---|---|
| instanceOf |
joint powers authority
ⓘ
regional government agency ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| focus |
multimodal transportation hub development
ⓘ
transit infrastructure ⓘ |
| formedAs | joint powers authority of multiple public agencies ⓘ |
| governs | Transbay Program NERFINISHED ⓘ |
| hasJurisdiction |
Transbay Transit Center District
NERFINISHED
ⓘ
Transbay transit facilities ⓘ |
| headquartersLocation | San Francisco NERFINISHED ⓘ |
| industry |
public infrastructure
ⓘ
public transportation ⓘ |
| locatedIn |
California, United States
ⓘ
surface form:
California
San Francisco ⓘ San Francisco Bay Area ⓘ |
| notableWork |
Salesforce Transit Center
NERFINISHED
ⓘ
Transbay Transit Center project NERFINISHED ⓘ |
| operates | Salesforce Transit Center NERFINISHED ⓘ |
| projectIncludes |
Salesforce Transit Center
NERFINISHED
ⓘ
Transbay Transit Center NERFINISHED ⓘ bus deck at Salesforce Transit Center NERFINISHED ⓘ future rail levels at Salesforce Transit Center ⓘ |
| purpose |
coordinate regional transit connections
ⓘ
develop a regional transit hub in downtown San Francisco ⓘ manage design and construction of Transbay facilities ⓘ operate and maintain Transbay transit facilities ⓘ |
| regionServed |
San Francisco Bay Area
ⓘ
downtown San Francisco NERFINISHED ⓘ |
| responsibleFor |
Salesforce Transit Center
NERFINISHED
ⓘ
building Transbay transit facilities ⓘ operating Transbay transit facilities ⓘ planning Transbay transit facilities ⓘ |
| sector | public sector ⓘ |
| typeOfOrganization | public agency ⓘ |
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: Transbay Joint Powers Authority Description of subject: The Transbay Joint Powers Authority is a regional government agency in San Francisco responsible for planning, building, and operating the Transbay transit facilities, including the Salesforce Transit Center.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Transbay Transit Center Program