Red Line (Chicago "L")

E252488

Chicago "L" line rapid transit line

The Red Line is a major rapid transit route of the Chicago "L" system, running north–south through the city and operating 24 hours a day.

Try in SPARQL Jump to: Surface forms Disambiguation Statements Elicitation Referenced by

All labels observed (10)

Label	Occurrences
Red Line (CTA)	23
Chicago Transit Authority Red Line	5
Red Line (Chicago "L") canonical	4
CTA North Side Main Line corridor	1
Chicago "L" Red Line	1
Chicago (Red Line)	1
Chicago Red Line north–south corridor	1
Chicago Transit Authority (CTA) Red Line	1
North Side Red Line branch	1
Red Line (Chicago Transit Authority)	1

How this entity was disambiguated

This entity first appeared as the object of triple T2254858 — 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: Red Line (Chicago "L")
Context triple: [Northwestern Elevated Railroad, successorLine, Red Line (Chicago "L")]

A. Brown Line
The Brown Line is a rapid transit route of Chicago's "L" system that primarily serves the city's North Side and northwest neighborhoods.
B. Orange Line
The Orange Line is one of the primary rapid transit routes in the Washington Metro system, running east–west through Washington, D.C. and its Virginia and Maryland suburbs.
C. Orange Line
The Orange Line is a rapid transit route in Chicago that connects the city's Loop with Midway International Airport as part of the Chicago "L" system.
D. Orange Line
The Orange Line is a light rail route in the Dallas Area Rapid Transit (DART) system serving key destinations including Dallas/Fort Worth International Airport and several northern suburbs.
E. Orange Line
The Orange Line is a rapid transit route in the Boston metropolitan area that runs north–south through downtown as part of the MBTA subway system.
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: Red Line (Chicago "L")
Target entity description: The Red Line is a major rapid transit route of the Chicago "L" system, running north–south through the city and operating 24 hours a day.

A. Brown Line
The Brown Line is a rapid transit route of Chicago's "L" system that primarily serves the city's North Side and northwest neighborhoods.
B. Orange Line
The Orange Line is one of the primary rapid transit routes in the Washington Metro system, running east–west through Washington, D.C. and its Virginia and Maryland suburbs.
C. Orange Line
The Orange Line is a rapid transit route in Chicago that connects the city's Loop with Midway International Airport as part of the Chicago "L" system.
D. Orange Line
The Orange Line is a rapid transit route in the Boston metropolitan area that runs north–south through downtown as part of the MBTA subway system.
E. Orange Line
The Orange Line is a major corridor of the Delhi Metro system that connects central Delhi to the Indira Gandhi International Airport and surrounding areas.
F. None of above. chosen

Statements (62)

Predicate	Object
instanceOf	Chicago "L" line ⓘ rapid transit line ⓘ
cityServed	Chicago ⓘ
color	red ⓘ
country	United States ⓘ linked to: United States of America
dailyOperation	24 hours per day ⓘ
electrification	third rail ⓘ
elevatedSection	North Side Main Line ⓘ
fareSystem	Ventra ⓘ
hasStation	35th–Bronzeville–IIT ⓘ 47th (Red Line station) ⓘ 63rd (Red Line station) ⓘ 95th/Dan Ryan ⓘ linked to: Dan Ryan Expressway Belmont ⓘ Cermak–Chinatown ⓘ linked to: Cermak Branch Chicago (Red Line station) ⓘ Clark/Division ⓘ Fullerton ⓘ Grand (Red Line station) ⓘ linked to: Grand (Red Line) Howard ⓘ Jackson (Red Line station) ⓘ linked to: Jackson (CTA Red Line station) Lake (Red Line station) ⓘ linked to: Lake (CTA Red Line station) Loyola ⓘ linked to: Loyola University Chicago Roosevelt ⓘ
hasTransferStation	Belmont ⓘ Fullerton ⓘ Howard ⓘ Jackson ⓘ Roosevelt ⓘ
lineNumber	Red ⓘ
locale	Cook County, Illinois ⓘ
medianSection	Dan Ryan Expressway median ⓘ
modeOfTransport	rail ⓘ
nameAdopted	1993 ⓘ
northernTerminus	Howard station ⓘ
openedAsRoute	1943 ⓘ
operator	Chicago Transit Authority ⓘ
owner	Chicago Transit Authority ⓘ
partOf	Chicago Transit Authority rail system ⓘ
servesNeighborhood	Bridgeport ⓘ Edgewater ⓘ Englewood ⓘ Fuller Park ⓘ Lakeview ⓘ Lincoln Park ⓘ Near North Side ⓘ Near South Side ⓘ Rogers Park ⓘ linked to: Rogers Park, Chicago Roseland ⓘ The Loop ⓘ linked to: Loop (Chicago) Uptown ⓘ
servicePattern	24-hour service ⓘ north–south route ⓘ
sharesTrackWith	Brown Line (Chicago "L") ⓘ linked to: Brown Line Purple Line (Chicago "L") ⓘ linked to: Purple Line (CTA)
southernTerminus	95th/Dan Ryan station ⓘ
state	Illinois ⓘ
system	Chicago "L" ⓘ
terminus	95th/Dan Ryan station ⓘ Howard station ⓘ
trackGauge	standard gauge ⓘ
undergroundSection	State Street subway ⓘ linked to: State Street Subway

How these facts were elicited