STATISTICAL SPECIFICATION EVALUATION

A statewide evaluation of test results from Highway Construction Materials was performed. Statistical parameters were determined for physical tests on aggregate base, portland cement concrete, asphalt concrete, and cement treated base. Where possible the current quality levels were compared with prestatistical specification levels. Specifically, a technique known as the Moving Average was monitored to determine what, if any, differences in materials quality level would result, in conjunction with data collection and analysis. Personal contact was established with over 100 resident engineers and materials' men throughout the State to determine their reactions to, and opinions of, the Moving Average. Although the Moving Average method being researched was not in effect long enough for a definitive evaluation, the results obtained indicated that quality levels have not been adversely affected and further that the personnel who worked with the new method generally were in favor of it. /FHWA/

  • Supplemental Notes:
    • Sponsored by California Department of Transportation in cooperation with FHWA.
  • Corporate Authors:

    California Department of Transportation

    Transportation Laboratory
    5900 Folsom Boulevard
    Sacramento, CA  United States  95819

    Federal Highway Administration

    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590
  • Authors:
    • Trimble, R
    • Kurilow, G
    • Nakao, D
  • Publication Date: 1975-7

Media Info

  • Pagination: 37 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00130589
  • Record Type: Publication
  • Source Agency: Federal Highway Administration
  • Report/Paper Numbers: CA-DOTTL-1146-1-7525Final Rpt.
  • Contract Numbers: FHWA-F-1-3
  • Files: NTIS, TRIS, USDOT, STATEDOT
  • Created Date: Mar 29 1976 12:00AM