Term Details

Display Hierarchical | Alphabetical | KWOC | KWIC


Top Terms > Facilities > Transportation, hydraulic and utility facilities > Highway facilities > Roads > Parts of roads > Pavements > Pavement components > Pavement layers > Subgrade (Pavements)

Find related records

Search with TRT term only:

TRB Publications Index
Research in Progress
TRID

Expanded search with
narrower TRT terms:

TRB Publications Index
Research in Progress
TRID

Subgrade (Pavements) (Pmrcpppmr)

Definition
The top surface of a roadbed upon which the pavement structure and shoulders, including curbs, are constructed. Also, the graded portion of a highway within top and side slopes, prepared as a foundation for the pavement structure and shoulder. (Source: AASHTO Glossary)
Use For
Highway subgrade
Pavement subgrades
Roadbeds
Broader Term
Pavement layers (Pmrcpppm)
Related Terms (Hierarchical)
Surface course (Pavements) (Pmrcpppmb)
Base course (Pavements) (Pmrcpppme)
Subbase (Pavements) (Pmrcpppmg)
Pavement interlayers (Pmrcpppmi)