RTD light rail
E670215
RTD light rail is a regional light rail transit system serving the Denver metropolitan area in Colorado, operated by the Regional Transportation District.
All labels observed (7)
| Label | Occurrences |
|---|---|
| RTD Light Rail | 4 |
| RTD Rail | 3 |
| RTD rail network | 3 |
| RTD light rail canonical | 2 |
| RTD light rail network | 1 |
| RTD light rail system | 1 |
| RTD light rail vehicles | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T7509116 — 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: RTD light rail Context triple: [Union Station (Denver), railServices, RTD light rail]
-
A.
DART Light Rail
DART Light Rail is a light rail transit system serving the Dallas–Fort Worth metropolitan area, operated by Dallas Area Rapid Transit.
-
B.
MAX Light Rail
MAX Light Rail is the metropolitan light rail transit system serving the Portland, Oregon, metropolitan area.
-
C.
SacRT Light Rail
SacRT Light Rail is the electric light rail transit system serving Sacramento, California and its surrounding communities.
-
D.
SPRINTER light rail
SPRINTER light rail is a diesel multiple-unit light rail service in northern San Diego County, California, connecting Oceanside with inland cities such as Vista, San Marcos, and Escondido.
-
E.
METRO light rail
METRO light rail is a rapid transit system serving the Minneapolis–Saint Paul metropolitan area with multiple color-designated lines connecting key urban, suburban, and airport destinations.
- 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: RTD light rail Target entity description: RTD light rail is a regional light rail transit system serving the Denver metropolitan area in Colorado, operated by the Regional Transportation District.
-
A.
DART Light Rail
DART Light Rail is a light rail transit system serving the Dallas–Fort Worth metropolitan area, operated by Dallas Area Rapid Transit.
-
B.
MAX Light Rail
MAX Light Rail is the metropolitan light rail transit system serving the Portland, Oregon, metropolitan area.
-
C.
SacRT Light Rail
SacRT Light Rail is the electric light rail transit system serving Sacramento, California and its surrounding communities.
-
D.
SPRINTER light rail
SPRINTER light rail is a diesel multiple-unit light rail service in northern San Diego County, California, connecting Oceanside with inland cities such as Vista, San Marcos, and Escondido.
-
E.
METRO light rail
METRO light rail is a rapid transit system serving the Minneapolis–Saint Paul metropolitan area with multiple color-designated lines connecting key urban, suburban, and airport destinations.
- F. None of above. chosen
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf |
light rail system
ⓘ
public transit system ⓘ |
| connectsTo |
Amtrak California Zephyr at Denver Union Station
NERFINISHED
ⓘ
Bustang intercity bus services NERFINISHED ⓘ Denver Union Station commuter rail NERFINISHED ⓘ RTD bus network NERFINISHED ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| electrification | overhead catenary ⓘ |
| expansionProgram | FasTracks NERFINISHED ⓘ |
| fareSystem | zone-based fare system ⓘ |
| firstSegment | Central Corridor NERFINISHED ⓘ |
| gauge | standard gauge ⓘ |
| hasFeature |
accessible vehicles
ⓘ
bicycle accommodation ⓘ park-and-ride facilities at many stations ⓘ |
| hasLine |
A Line
NERFINISHED
ⓘ
B Line NERFINISHED ⓘ C Line NERFINISHED ⓘ D Line NERFINISHED ⓘ E Line NERFINISHED ⓘ F Line NERFINISHED ⓘ G Line NERFINISHED ⓘ H Line NERFINISHED ⓘ L Line NERFINISHED ⓘ N Line NERFINISHED ⓘ R Line NERFINISHED ⓘ T Line NERFINISHED ⓘ W Line NERFINISHED ⓘ |
| headquartersLocation | Denver, Colorado NERFINISHED ⓘ |
| locatedIn | Colorado ⓘ |
| openingYear | 1994 ⓘ |
| operator | Regional Transportation District NERFINISHED ⓘ |
| owner | Regional Transportation District NERFINISHED ⓘ |
| partOf | Regional Transportation District transit network NERFINISHED ⓘ |
| primaryHub | Denver Union Station NERFINISHED ⓘ |
| regionServed | Front Range Urban Corridor NERFINISHED ⓘ |
| secondaryHub | I-25 & Broadway station NERFINISHED ⓘ |
| serves |
Aurora, Colorado
NERFINISHED
ⓘ
Denver metropolitan area NERFINISHED ⓘ Denver, Colorado NERFINISHED ⓘ Englewood, Colorado NERFINISHED ⓘ Golden, Colorado NERFINISHED ⓘ Lakewood, Colorado NERFINISHED ⓘ Littleton, Colorado NERFINISHED ⓘ Lone Tree, Colorado NERFINISHED ⓘ |
| ticketing |
mobile tickets
ⓘ
paper tickets ⓘ smart card (MyRide) NERFINISHED ⓘ |
| transitType | light rail ⓘ |
| website | https://www.rtd-denver.com ⓘ |
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: RTD light rail Description of subject: RTD light rail is a regional light rail transit system serving the Denver metropolitan area in Colorado, operated by the Regional Transportation District.
Referenced by (15)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
RTD Rail
subject surface form:
Regional Transportation District
this entity surface form:
RTD Light Rail
this entity surface form:
RTD light rail network
this entity surface form:
RTD rail network
this entity surface form:
RTD Light Rail
this entity surface form:
RTD Rail
this entity surface form:
RTD Light Rail
this entity surface form:
RTD rail network
this entity surface form:
RTD rail network
this entity surface form:
RTD Light Rail
this entity surface form:
RTD light rail vehicles
this entity surface form:
RTD Rail
this entity surface form:
RTD light rail system