DESIGN EXCEPTION PRACTICES

This report describes the range of design exception practices among state transportation agencies (STAs) and discusses the problems and suggested improvements based on the experience of state agency personnel. All STAs are required to comply with the same federal regulation pertaining to design exceptions. However, the number of design exceptions, the circumstances under which they are prepared, and the methods employed vary considerably, with many factors contributing to this wide range of practice. This synthesis characterizes (1) conditions that require a design exception, (2) data collection and analysis techniques, and (3) internal STA and external rules. The report also describes benefits and problems experienced by STAs and identifies suggestions for improving and streamlining the design exception process. In addition, the innovative practices of two states (New Jersey and Wisconsin) are identified and discussed.

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    • 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
  • Corporate Authors:

    Transportation Research Board

    500 Fifth Street, NW
    Washington, DC  United States  20001
  • Authors:
    • Mason Jr, J M
    • Mahoney, K M
  • Publication Date: 2003

Language

  • English

Media Info

  • Features: Appendices; Figures; References; Tables;
  • Pagination: 90 p.
  • Serial:
  • Publication flags:

    Open Access (libre)

Subject/Index Terms

Filing Info

  • Accession Number: 00960102
  • Record Type: Publication
  • ISBN: 0309069645
  • Report/Paper Numbers: Project 20-5 FY 2001,, Topic 33-01
  • Files: TRIS, TRB
  • Created Date: Jul 16 2003 12:00AM