Alameda Corridor
E24113
The Alameda Corridor is a 20-mile freight rail expressway in Los Angeles County that consolidates and streamlines cargo movement between the region’s ports and the national rail network.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Alameda Corridor canonical | 2 |
| Alameda Corridor Transportation Authority | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T138401 — 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: Alameda Corridor Context triple: [Port of Los Angeles, connectedTo, Alameda Corridor]
-
A.
Los Angeles Metro Rail
Los Angeles Metro Rail is a rapid transit system serving Los Angeles County, California, consisting of multiple light rail and subway lines that connect key neighborhoods, business districts, and regional destinations.
-
B.
Atherton line
The Atherton line is a suburban railway route in Greater Manchester, England, connecting Manchester with towns such as Swinton, Walkden, and Atherton.
-
C.
VTA light rail
VTA light rail is a light rail public transit system serving Santa Clara County, including cities such as San Jose, operated by the Santa Clara Valley Transportation Authority.
-
D.
MAX Light Rail
MAX Light Rail is the metropolitan light rail transit system serving the Portland, Oregon, metropolitan area.
-
E.
Metro B Line
The Metro B Line is a heavy rail subway line in Los Angeles that runs through central and Hollywood areas as part of the LA Metro Rail 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: Alameda Corridor Target entity description: The Alameda Corridor is a 20-mile freight rail expressway in Los Angeles County that consolidates and streamlines cargo movement between the region’s ports and the national rail network.
-
A.
Los Angeles Metro Rail
Los Angeles Metro Rail is a rapid transit system serving Los Angeles County, California, consisting of multiple light rail and subway lines that connect key neighborhoods, business districts, and regional destinations.
-
B.
Atherton line
The Atherton line is a suburban railway route in Greater Manchester, England, connecting Manchester with towns such as Swinton, Walkden, and Atherton.
-
C.
VTA light rail
VTA light rail is a light rail public transit system serving Santa Clara County, including cities such as San Jose, operated by the Santa Clara Valley Transportation Authority.
-
D.
MAX Light Rail
MAX Light Rail is the metropolitan light rail transit system serving the Portland, Oregon, metropolitan area.
-
E.
Metro B Line
The Metro B Line is a heavy rail subway line in Los Angeles that runs through central and Hollywood areas as part of the LA Metro Rail system.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
freight rail expressway
ⓘ
rail corridor ⓘ transport infrastructure ⓘ |
| cargoType | intermodal freight ⓘ |
| cityServed |
Long Beach
ⓘ
Los Angeles ⓘ |
| connects |
Port of Long Beach
ⓘ
Port of Los Angeles ⓘ national rail network ⓘ rail yards near downtown Los Angeles ⓘ |
| constructionStartDate | 1997 ⓘ |
| country | United States of America ⓘ |
| fundingModel | user fees from railroads ⓘ |
| hasComponent |
Mid-Corridor Trench
ⓘ
bridges ⓘ grade separations ⓘ surface rail segments ⓘ |
| hasStructure |
below-grade trench
ⓘ
grade-separated crossings ⓘ |
| inception | April 15, 2002 ⓘ |
| length |
20 miles
ⓘ
32 kilometers ⓘ |
| locatedIn |
Long Beach, California
ⓘ
linked to:
Long Beach
Los Angeles County, California ⓘ
linked to:
Los Angeles County
Los Angeles, California ⓘ |
| locatedInTimeZone | Pacific Time Zone ⓘ |
| notableFor |
consolidating multiple port rail lines into a single corridor
ⓘ
improving freight travel times between ports and inland rail yards ⓘ reducing rail congestion near the ports of Los Angeles and Long Beach ⓘ |
| numberOfTracks | 3 ⓘ |
| openingDate | April 15, 2002 ⓘ |
| operator |
Alameda Corridor Transportation Authority
ⓘ
linked to:
Alameda Corridor
|
| owner |
Alameda Corridor Transportation Authority
ⓘ
linked to:
Alameda Corridor
|
| partOf | goods movement system of Southern California ⓘ |
| primaryUse | freight rail transportation ⓘ |
| purpose |
to consolidate rail cargo traffic from the ports
ⓘ
to reduce rail–roadway at-grade conflicts ⓘ to reduce truck traffic on local streets ⓘ to streamline cargo movement between ports and inland rail network ⓘ |
| railGauge | standard gauge ⓘ |
| regionServed |
Los Angeles metropolitan area
ⓘ
linked to:
Greater Los Angeles Area
Southern California ⓘ |
| serves |
Port of Long Beach
ⓘ
Port of Los Angeles ⓘ |
| transportMode | rail ⓘ |
| usedBy |
BNSF Railway
ⓘ
Union Pacific Railroad ⓘ |
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: Alameda Corridor Description of subject: The Alameda Corridor is a 20-mile freight rail expressway in Los Angeles County that consolidates and streamlines cargo movement between the region’s ports and the national rail network.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Alameda Corridor
linked to: Alameda Corridor