AASHTO Roadside Design Guide
E504420
The AASHTO Roadside Design Guide is a key engineering reference that provides standards and best practices for designing safer highway roadsides and roadside safety features in the United States.
All labels observed (2)
| Label | Occurrences |
|---|---|
| AASHTO RDG | 1 |
| AASHTO Roadside Design Guide canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5230779 — 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: AASHTO Roadside Design Guide Context triple: [AASHTO Green Book, relatedTo, AASHTO Roadside Design Guide]
-
A.
AASHTO Green Book
The AASHTO Green Book is a widely used design manual that sets geometric design standards and guidelines for roads and highways in the United States.
-
B.
AASHTO Highway Safety Manual
The AASHTO Highway Safety Manual is a foundational reference that provides data-driven methods and tools for predicting, evaluating, and improving roadway safety performance in transportation engineering and planning.
-
C.
A Policy on Geometric Design of Highways and Streets
A Policy on Geometric Design of Highways and Streets is a key engineering reference manual that sets widely used standards and guidelines for the geometric design of roads and streets in the United States.
-
D.
AASHTO LRFD Bridge Design Specifications
The AASHTO LRFD Bridge Design Specifications are the primary U.S. standards that provide load and resistance factor design criteria for the analysis and design of highway bridges.
-
E.
Manual on Uniform Traffic Control Devices
The Manual on Uniform Traffic Control Devices is the United States’ national standard that defines the design and use of road signs, signals, and pavement markings to ensure consistent and safe traffic control across the country.
- 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: AASHTO Roadside Design Guide Target entity description: The AASHTO Roadside Design Guide is a key engineering reference that provides standards and best practices for designing safer highway roadsides and roadside safety features in the United States.
-
A.
AASHTO Green Book
The AASHTO Green Book is a widely used design manual that sets geometric design standards and guidelines for roads and highways in the United States.
-
B.
AASHTO Highway Safety Manual
The AASHTO Highway Safety Manual is a foundational reference that provides data-driven methods and tools for predicting, evaluating, and improving roadway safety performance in transportation engineering and planning.
-
C.
A Policy on Geometric Design of Highways and Streets
A Policy on Geometric Design of Highways and Streets is a key engineering reference manual that sets widely used standards and guidelines for the geometric design of roads and streets in the United States.
-
D.
AASHTO LRFD Bridge Design Specifications
The AASHTO LRFD Bridge Design Specifications are the primary U.S. standards that provide load and resistance factor design criteria for the analysis and design of highway bridges.
-
E.
Manual on Uniform Traffic Control Devices
The Manual on Uniform Traffic Control Devices is the United States’ national standard that defines the design and use of road signs, signals, and pavement markings to ensure consistent and safe traffic control across the country.
- F. None of above. chosen
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf |
engineering design guide
ⓘ
roadside safety guideline ⓘ technical standard ⓘ |
| appliesTo |
freeways
ⓘ
highways ⓘ rural roads ⓘ urban roads ⓘ |
| basisFor | many state roadside design policies ⓘ |
| countryOfUse |
United States
ⓘ
linked to:
United States of America
|
| documentType | guidance document ⓘ |
| field |
highway engineering
ⓘ
road safety engineering ⓘ transportation engineering ⓘ |
| focusesOn |
barrier design
ⓘ
clear zone design ⓘ hazard mitigation ⓘ roadside design ⓘ roadside safety ⓘ run-off-road crash mitigation ⓘ slope design ⓘ |
| hasAbbreviation |
AASHTO RDG
ⓘ
linked to:
AASHTO Roadside Design Guide
|
| hasPublisher | American Association of State Highway and Transportation Officials ⓘ |
| includes |
crash data considerations
ⓘ
design examples ⓘ nomographs and tables ⓘ risk-based design guidance ⓘ |
| objective |
improve roadside safety
ⓘ
reduce severity of run-off-road crashes ⓘ standardize roadside design practices ⓘ |
| primaryLanguage | English ⓘ |
| provides |
best practices for roadside safety
ⓘ
design criteria for roadside features ⓘ guidance on clear zone widths ⓘ guidance on crashworthy roadside hardware ⓘ guidance on median barrier use ⓘ guidance on placement of roadside hardware ⓘ guidance on roadside slopes and ditches ⓘ guidance on selection of roadside barriers ⓘ guidance on shielding roadside obstacles ⓘ |
| relatedTo |
AASHTO Green Book
ⓘ
AASHTO Highway Safety Manual ⓘ |
| scope |
geometric design of roadside elements
ⓘ
selection of roadside safety features ⓘ |
| targetAudience |
professional engineers
ⓘ
transportation planners ⓘ |
| updatedBy | periodic AASHTO revisions ⓘ |
| usedBy |
highway design engineers
ⓘ
road safety analysts ⓘ state departments of transportation ⓘ transportation agencies ⓘ |
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: AASHTO Roadside Design Guide Description of subject: The AASHTO Roadside Design Guide is a key engineering reference that provides standards and best practices for designing safer highway roadsides and roadside safety features in the United States.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: AASHTO Roadside Design Guide