EVALUATING THE EFFECTIVENESS OF QC/QA PROGRAMS IN REGION 8 STATES

The main objective of this research was to quantify the differences and similarities among Quality Control/Quality Assurance (QC/QA) programs for three state highway agencies. By measuring these differences, conclusions were drawn as to which state was achieving the best results with their QC/QA program. The states considered in this study included Colorado, Wyoming, and South Dakota. When designing a QC/QA program, there are numerous factors that must be taken into account. Some of the processes common to at least two of the three states used in this study were, control of aggregate gradation, density, design air voids, and asphalt content. Specifications and processes used for incentive and disincentive pay adjustments differed among the states as did the processes controlled for. The data for this research were collected, condensed, and filtered for use in a statistical software package. The projects were constructed during the first, second, and third years after the implementation of a pilot QC/QA program. Analysis of variance (ANOVA) was used on the data and the variation between the test and target values for each factor. Conclusions were drawn from the ANOVA.

• Record URL:
  https://www.ugpti.org/resources/reports/details.php?id=498
• Supplemental Notes:
  • This research was supported by a grant from the U.S. Department of Transportation, University Transportation Centers Program.
• Corporate Authors:

  University of Wyoming, Laramie

  Department of Civil and Architectural Engineering
  1000 East University Avenue
  Laramie, WY  United States  82071

  Mountain-Plains Consortium

  North Dakota State University
  Fargo, ND  United States  58108
• Authors:
  • Ksaibati, K
  • Kolkman, L
• Publication Date: 2004-5

Language

• English

Media Info

• Media Type: Digital/other
• Features: Appendices; Figures; References; Tables;
• Pagination: 179 p.

Subject/Index Terms

• TRT Terms: Aggregate gradation; Air voids; Analysis of variance; Asphalt content; Density; Disincentives; Incentives; Quality assurance; Quality control; Road construction; State departments of transportation
• Uncontrolled Terms: Pay adjustments
• Geographic Terms: Colorado; South Dakota; Wyoming
• Subject Areas: Construction; Data and Information Technology; Highways; I50: Construction and Supervision of Construction;

Filing Info

• Accession Number: 00977136
• Record Type: Publication
• Report/Paper Numbers: MPC Report No. 04-160
• Files: TRIS
• Created Date: Aug 13 2004 12:00AM