PAVEMENT DESIGN ON AN E.D.A. BASIS

THIS ARTICLE DESCRIBES HOW WHEEL LOAD SURVEYS AND VISUAL COMMODITY SURVEYS ARE CARRIED OUT IN NEW ZEALAND. THE RESULTS OF THESE SURVEYS ARE USED IN FORMULATING A PAVEMENT DESIGN PROCEDURE ON AN EQUIVALENT DESIGN AXLE (E.D.A.) BASIS, WHICH RELATES THE C.B.R. OF THE SUBGRADE TO THE TOTAL E.D.A. LOADING ON THE ROAD DURING ITS DESIGN LIFE TO GIVE THE DEPTH OF PAVEMENT REQUIRED. THE E.D.A. VALUE FOR ANY AXLE LOAD IS GIVEN BY ((WEIGHED AXLES LOAD)/STANDARD DESIGN AXLE LOAD)) 3.85. THE EXPONENT OF 3.85 IS THE SHELL EQUIVALENCY; THIS PARTICULAR EQUIVALENCY DIFFERS SLIGHTLY FROM THAT CALCULATED BY OTHER AUTHORITIES AND TENDS TO MINIMIZE THE EFFECTS OF OVERLOADING. EQUIVALENCIES FROM THE MOSCOW INSTITUTE OF HIGHWAY ENGINEERING COINCIDE ALMOST COMPLETELY WITH THE EXPERIMENTAL DATA OF THE AASHO ROAD TESTS. /AUTHOR/

  • Availability:
  • Supplemental Notes:
    • Vol 25, No 5, PP 129-133
  • Authors:
    • Hansen, A E
  • Publication Date: 1970-5-15

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Filing Info

  • Accession Number: 00203495
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Sep 21 1970 12:00AM