Sound Transit 3
E205748
Sound Transit 3 is a major regional transit expansion plan in the Seattle metropolitan area that funds and builds new light rail, bus rapid transit, and commuter rail projects over several decades.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Sound Transit 3 canonical | 4 |
How this entity was disambiguated
This entity first appeared as the object of triple T1817577 — 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: Sound Transit 3 Context triple: [Sound Transit, hasProject, Sound Transit 3]
-
A.
Sound Transit 2
Sound Transit 2 is a major expansion plan for the Seattle-area regional transit system, funding and guiding the build-out of additional light rail, commuter rail, and bus services across the Puget Sound region.
-
B.
Sound Transit
Sound Transit is the regional public transit agency that plans, builds, and operates light rail, commuter rail, and express bus services in the greater Puget Sound area of Washington State.
-
C.
Sound Transit Link light rail
Sound Transit Link light rail is a regional rapid transit system serving Seattle and surrounding communities with frequent, high-capacity train service.
-
D.
RapidRide
RapidRide is King County Metro’s network of frequent, limited-stop bus rapid transit-style routes serving major corridors in the Seattle metropolitan area.
-
E.
Everett Transit
Everett Transit is the public bus transportation agency serving the city of Everett in Washington State.
- 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: Sound Transit 3 Target entity description: Sound Transit 3 is a major regional transit expansion plan in the Seattle metropolitan area that funds and builds new light rail, bus rapid transit, and commuter rail projects over several decades.
-
A.
Sound Transit 2
Sound Transit 2 is a major expansion plan for the Seattle-area regional transit system, funding and guiding the build-out of additional light rail, commuter rail, and bus services across the Puget Sound region.
-
B.
Sound Transit
Sound Transit is the regional public transit agency that plans, builds, and operates light rail, commuter rail, and express bus services in the greater Puget Sound area of Washington State.
-
C.
Sound Transit Link light rail
Sound Transit Link light rail is a regional rapid transit system serving Seattle and surrounding communities with frequent, high-capacity train service.
-
D.
RapidRide
RapidRide is King County Metro’s network of frequent, limited-stop bus rapid transit-style routes serving major corridors in the Seattle metropolitan area.
-
E.
Everett Transit
Everett Transit is the public bus transportation agency serving the city of Everett in Washington State.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
public transportation funding measure
ⓘ
regional ballot measure ⓘ transit expansion plan ⓘ |
| appliesToRegion |
Puget Sound region
ⓘ
Seattle metropolitan area ⓘ |
| authoritiesInvolved |
Sound Transit
ⓘ
surface form:
Central Puget Sound Regional Transit Authority
|
| benefits |
expanded transit network coverage
ⓘ
improved regional connectivity ⓘ increased transit frequency and capacity ⓘ potential greenhouse gas emissions reduction ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| follows | Sound Transit 2 ⓘ |
| fundingMechanism |
motor vehicle excise tax increase
ⓘ
property tax increase ⓘ sales tax increase ⓘ |
| fundingSource |
bond financing
ⓘ
federal grants ⓘ local taxes ⓘ |
| governance | Sound Transit Board of Directors ⓘ |
| implementationMethod | phased construction ⓘ |
| includesProjectType |
bus rapid transit corridors
ⓘ
commuter rail improvements ⓘ light rail extensions ⓘ maintenance and operations facilities ⓘ new light rail lines ⓘ parking expansions ⓘ station access improvements ⓘ |
| modeIncluded |
bus rapid transit
ⓘ
commuter rail ⓘ light rail ⓘ park-and-ride facilities ⓘ regional express bus infrastructure ⓘ |
| officialName | Sound Transit 3 self-link ⓘ |
| operator | Sound Transit ⓘ |
| partOf | Sound Transit long-range plan ⓘ |
| policyGoal |
improve regional mobility
ⓘ
provide alternatives to single-occupancy vehicles ⓘ support transit-oriented development ⓘ |
| precedes | later Sound Transit program updates ⓘ |
| purpose |
expand regional high-capacity transit
ⓘ
increase transit capacity and coverage ⓘ reduce traffic congestion ⓘ support regional growth management ⓘ |
| shortName | ST3 ⓘ |
| state | Washington ⓘ |
| timeHorizon | multiple decades ⓘ |
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: Sound Transit 3 Description of subject: Sound Transit 3 is a major regional transit expansion plan in the Seattle metropolitan area that funds and builds new light rail, bus rapid transit, and commuter rail projects over several decades.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.