RELATIONSHIPS BETWEEN PHYSIOGRAPHIC UNITS AND HIGHWAY DESIGN FACTORS

THIS REPORT IDENTIFIES THE SEVERITY AND/OR FREQUENCY OF OCCURRENCE OF AGGREGATE AVAILABILITY, SUBGRADE SUPPORT, HIGH VOLUME CHANGE SOILS, AND FROST- SUSCEPTIBLE SOILS WITHIN 97 PHYSIOGRAPHIC SECTIONS OF THE CONTIGUOUS 48 STATES; AND QUALITATIVELY ASSESS THE POTENTIAL FOR THE INFLUENCE OF THESE FACTORS ON HIGHWAY DESIGN AND CONSTRUCTION. THE FINDINGS ARE FOUNDED ON THE PREMISE THAT PHYSIOGRAPHIC UNITS CAN FORM AN ORDERLY FILING SYSTEM FOR ACCUMULATED ENGINEERING EXPERIENCE WHICH, IN THE HIGHWAY DESIGN FIELD, CONSTITUTES ENGINEERING JUDGMENT. A LARGE AMOUNT OF INFORMATION ON THE DISTRIBUTION OF AGGREGATES AND SOILS IN THE CONTIGUOUS U. S. HAS BEEN COMPILED AND PRESENTED ON A SERIES OF MAPS. HIGHWAY ENGINEERING STUDENTS AND YOUNG ENGINEERS IN THE PROCESS OF ACCUMULATING EXPERIENCE AND ACQUIRING ENGINEERING JUDGMENT WILL UNDOUBTEDLY BENEFIT FROM A STUDY OF THE INFORMATION CONTAINED IN THE REPORT. IT SHOULD ALSO BE PARTICULARLY VALUABLE TO SUCH ORGANIZATIONS AS CONSULTING ENGINEERING FIRMS AND CONTRACTORS THAT SERVE LARGE GEOGRAPHICAL AREAS, AND THUS MAY NOT HAVE ACTUAL EXPERIENCE IN MANY LOCAL AREAS. /HRB/

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  • 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. APP
  • Authors:
    • Witczak, M W
  • Publication Date: 1972

Media Info

  • Media Type: Digital/other
  • Features: Figures; References; Tables;
  • Pagination: 161 p.
  • Serial:
    • NCHRP Report
    • Issue Number: 132
    • Publisher: Transportation Research Board
    • ISSN: 0077-5614
  • Publication flags:

    Open Access (libre)

Subject/Index Terms

Filing Info

  • Accession Number: 00206047
  • Record Type: Publication
  • Files: TRIS, ATRI
  • Created Date: May 7 1973 12:00AM