Glossary of Highway Quality Assurance Terms

Highway quality assurance (QA), like many other specialized subject areas, has its own unique language containing numerous technical terms or expressions having very specific meanings. Some of these terms are not well understood, and their use is subject to a variety of different interpretations. The highway QA language, moreover, is continually changing to keep pace with advances in QA. As new terms come into general use, older terms must often be perceived in a new light. The terminology has grown and evolved steadily since the mid-60s, when much of it was first introduced to the highway community; however, its growth and evolution have been to a large degree uncontrolled. This circular contains terms of common usage and accepted practice. Its purpose is to provide a reference document containing common usage of highway QA terminology. In developing this publication, the Transportation Research Board Committee on Management of Quality Assurance (AFH20) reviewed the evolution of the highway QA language, assessed its current condition, and attempted to define not what it is today but what is should be. The circular is divided into four parts: an index, a glossary of highway QA terms, a list of abbreviations and symbols, and a list of references.

  • Record URL:
  • Availability:
  • Supplemental Notes:
    • Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved
  • Publication Date: 2005-5


  • English

Media Info

  • Media Type: Web
  • Edition: Third Update
  • Features: References;
  • Pagination: 40p
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 01000456
  • Record Type: Publication
  • Files: TRIS, TRB
  • Created Date: May 23 2005 2:48PM