Transportation Research Thesaurus (TRT)
Toggle navigation
Home
Advanced search
About...
My account
Roads
Home
Facilities
Transportation, hydraulic and utility facilities
Highway facilities
Roads
Term
Metadata
Roads
Alternative terms
UF
↸
Road networks
Broader Terms
BT
↑
Highway facilities
More specific terms
NT4
↓
Geometric segments
►
▼
NT5
↓
Highway curves
►
▼
NT6
↓
Transition curves
NT5
↓
Highway grades
►
▼
NT6
↓
Downgrades (Roads)
NT6
↓
Upgrades (Roads)
NT4
↓
Parts of roads
►
▼
NT5
↓
Barriers (Roads)
►
▼
NT6
↓
Anti glare screens
NT6
↓
Crash cushions
►
▼
NT7
↓
Truck mounted attenuators
NT6
↓
Guardrails
►
▼
NT7
↓
Guardrail terminals
NT7
↓
Guardrail transition sections
NT6
↓
Medians
►
▼
NT7
↓
Median barriers
NT7
↓
Median openings
NT6
↓
Noise barriers
NT5
↓
Curbs
NT5
↓
Interchanges and intersections
►
▼
NT6
↓
Interchanges
►
▼
NT7
↓
Interchange elements
►
NT7
↓
Types of interchanges
►
NT6
↓
Intersections
►
▼
NT7
↓
Intersection elements
►
NT7
↓
Types of intersections
►
NT5
↓
Pavements
►
▼
NT6
↓
Pavement components
►
▼
NT7
↓
Pavement joints
NT7
↓
Pavement layers
►
NT6
↓
Types of pavements
►
▼
NT7
↓
Perpetual pavements
NT7
↓
Types of pavements by material
►
NT7
↓
Types of pavements by surface load distribution
►
NT5
↓
Road shoulders
►
▼
NT6
↓
Dropoffs (Pavements)
NT6
↓
Paved shoulders
NT5
↓
Roadside
►
▼
NT6
↓
Clear zones
NT6
↓
Roadside memorials
NT6
↓
Roadside structures
►
▼
NT7
↓
Mailboxes
NT5
↓
Traffic lanes
►
▼
NT6
↓
Approach lanes
NT6
↓
Auxiliary lanes
NT6
↓
Bicycle lanes
NT6
↓
Climbing lanes
NT6
↓
Contraflow lanes
NT6
↓
Downgrade lanes
NT6
↓
Express lanes
NT6
↓
High occupancy vehicle lanes
►
▼
NT7
↓
Bus lanes
NT7
↓
High occupancy toll lanes
NT6
↓
Lane drops
NT6
↓
Managed lanes
NT6
↓
Median lanes
NT6
↓
Reversible traffic lanes
NT6
↓
Speed change lanes
►
▼
NT7
↓
Acceleration lanes
NT7
↓
Deceleration lanes
NT7
↓
Passing lanes
NT6
↓
Truck lanes
NT6
↓
Turning lanes
►
▼
NT7
↓
Left turn lanes
►
NT7
↓
Right turn lanes
NT5
↓
Weaving sections
NT4
↓
Types of roads
►
▼
NT5
↓
Principal types of roads
►
▼
NT6
↓
Alleys
NT6
↓
Expressways
NT6
↓
Freeways
NT6
↓
Highways
►
▼
NT7
↓
Arterial highways
NT7
↓
Depressed highways
NT7
↓
Divided highways
NT6
↓
Streets
►
▼
NT7
↓
Cul de sacs
NT7
↓
Dead end streets
NT7
↓
One way streets
NT5
↓
Types of roads by environment
►
▼
NT6
↓
Forest roads
NT6
↓
Mountain roads
NT6
↓
Parkways
NT6
↓
Rural highways
NT6
↓
Scenic highways
NT6
↓
Urban highways
NT5
↓
Types of roads by jurisdiction
►
▼
NT6
↓
County roads
NT6
↓
Federal aid highways
NT6
↓
International roads
NT6
↓
Interstate highways
NT6
↓
Primary highways
NT6
↓
Private roads
►
▼
NT7
↓
Driveways
NT6
↓
Public roads
NT6
↓
Secondary roads
NT6
↓
State highways
NT6
↓
Toll roads
NT5
↓
Types of roads by network
►
▼
NT6
↓
Access roads
►
▼
NT7
↓
Frontage roads
NT6
↓
Approach roads
NT6
↓
Beltways
NT6
↓
Bypasses
NT6
↓
Highway corridors
NT6
↓
Radial highways
NT5
↓
Types of roads by number of lanes
►
▼
NT6
↓
Four lane highways
NT6
↓
Multilane highways
NT6
↓
Three lane highways
NT6
↓
Two lane highways
NT5
↓
Types of roads by purpose
►
▼
NT6
↓
Automated highways
NT6
↓
Commercial strips
NT6
↓
Experimental roads
►
▼
NT7
↓
Test tracks
►
NT6
↓
Farm roads
NT6
↓
Haul roads
NT6
↓
Logging roads
NT6
↓
Recreational roads
NT6
↓
Residential streets
NT6
↓
Service roads
NT5
↓
Types of roads by traffic volume
►
▼
NT6
↓
High volume roads
NT6
↓
Low volume roads
NT5
↓
Unpaved roads
►
▼
NT6
↓
Earth roads
NT6
↓
Gravel roads
Date of creation
18-Mar-2009
Accepted term
18-Mar-2009
Descendant terms
192
ARK
ark:/99152/t38elw121nmr90
More specific terms
3
Alternative terms
1
Related terms
0
Notes
0
Metadata
BS8723-5
DC
MADS
SKOS-Core
VDEX
XTM
Zthes
JSON
JSON-LD
Search