Iowa Department of Transportation
E50537
The Iowa Department of Transportation is the state government agency responsible for planning, building, and maintaining Iowa’s transportation infrastructure, including its highways and interstates.
All labels observed (6)
How this entity was disambiguated
This entity first appeared as the object of triple T392679 — 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: Iowa Department of Transportation Context triple: [Interstate 480, maintainedBy, Iowa Department of Transportation]
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A.
Nebraska Department of Transportation
The Nebraska Department of Transportation is the state government agency responsible for planning, building, and maintaining Nebraska’s highway and transportation infrastructure.
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B.
Oregon Department of Transportation
The Oregon Department of Transportation is the state agency responsible for planning, building, and maintaining Oregon’s transportation systems, including highways, public transit support, rail, and other infrastructure.
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C.
Maine Department of Transportation
The Maine Department of Transportation is the state government agency responsible for planning, building, and maintaining Maine’s transportation infrastructure, including highways, bridges, and related facilities.
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D.
Washington State Department of Transportation
The Washington State Department of Transportation is the state government agency responsible for planning, building, and maintaining Washington’s highway system and other key transportation infrastructure.
-
E.
Florida Department of Transportation
The Florida Department of Transportation is the state government agency responsible for planning, building, and maintaining Florida’s transportation infrastructure, including its highways, bridges, and public transit systems.
- 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: Iowa Department of Transportation Target entity description: The Iowa Department of Transportation is the state government agency responsible for planning, building, and maintaining Iowa’s transportation infrastructure, including its highways and interstates.
-
A.
Nebraska Department of Transportation
The Nebraska Department of Transportation is the state government agency responsible for planning, building, and maintaining Nebraska’s highway and transportation infrastructure.
-
B.
Oregon Department of Transportation
The Oregon Department of Transportation is the state agency responsible for planning, building, and maintaining Oregon’s transportation systems, including highways, public transit support, rail, and other infrastructure.
-
C.
Maine Department of Transportation
The Maine Department of Transportation is the state government agency responsible for planning, building, and maintaining Maine’s transportation infrastructure, including highways, bridges, and related facilities.
-
D.
Washington State Department of Transportation
The Washington State Department of Transportation is the state government agency responsible for planning, building, and maintaining Washington’s highway system and other key transportation infrastructure.
-
E.
Florida Department of Transportation
The Florida Department of Transportation is the state government agency responsible for planning, building, and maintaining Florida’s transportation infrastructure, including its highways, bridges, and public transit systems.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
government agency
ⓘ
state transportation agency ⓘ |
| abbreviation |
IDOT
ⓘ
Iowa Department of Transportation self-linksurface differs ⓘ
surface form:
Iowa DOT
|
| collaboratesWith |
Federal Highway Administration
ⓘ
Federal Transit Administration ⓘ other state departments of transportation in the United States ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| follows | federal transportation regulations of the United States ⓘ |
| goal |
provide safe and efficient transportation in Iowa
ⓘ
support economic development through transportation infrastructure in Iowa ⓘ |
| hasDivision |
Iowa Department of Transportation
self-linksurface differs
ⓘ
surface form:
Highway Division of the Iowa Department of Transportation
Iowa Department of Transportation self-linksurface differs ⓘ
surface form:
Motor Vehicle Division of the Iowa Department of Transportation
Iowa Department of Transportation self-linksurface differs ⓘ
surface form:
Operations Division of the Iowa Department of Transportation
Planning, Programming and Modal Division of the Iowa Department of Transportation ⓘ |
| headquartersLocation | Ames, Iowa ⓘ |
| jurisdiction |
Iowa
ⓘ
surface form:
State of Iowa
|
| languageOfWork | English ⓘ |
| locatedInTimeZone | Central Time Zone ⓘ |
| maintains |
Iowa rest areas on state and interstate highways
ⓘ
Iowa state highway bridges ⓘ Iowa state highway signage ⓘ |
| oversees |
Iowa commercial driver licensing
ⓘ
Iowa driver’s license issuance ⓘ Iowa identification cards ⓘ Iowa vehicle license plates ⓘ |
| parentAgency |
Iowa
ⓘ
surface form:
State of Iowa
|
| regulates |
commercial vehicle operations on Iowa highways
ⓘ
oversize and overweight vehicle permits in Iowa ⓘ |
| responsibleFor |
Interstate highways in Iowa
ⓘ
Iowa Department of Transportation self-linksurface differs ⓘ
surface form:
Iowa driver licensing administration
Iowa motor vehicle titles ⓘ Iowa primary road system ⓘ Iowa state highways ⓘ aviation system planning in Iowa ⓘ construction of Iowa’s transportation infrastructure ⓘ maintenance of Iowa’s transportation infrastructure ⓘ planning of Iowa’s transportation infrastructure ⓘ public transit support in Iowa ⓘ rail transportation planning in Iowa ⓘ statewide transportation planning in Iowa ⓘ traffic safety programs in Iowa ⓘ transportation data collection in Iowa ⓘ vehicle registration in Iowa ⓘ |
| sector | public sector ⓘ |
| subdivisionOf | Government of Iowa ⓘ |
| uses | state and federal transportation funding ⓘ |
| website | https://iowadot.gov/ ⓘ |
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: Iowa Department of Transportation Description of subject: The Iowa Department of Transportation is the state government agency responsible for planning, building, and maintaining Iowa’s transportation infrastructure, including its highways and interstates.
Referenced by (53)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Interstate 280 (Iowa–Illinois)