ECONOMIC FEASIBILITY OF APPLICATION OF STATISTICAL CONCEPTS AND METHODS TO THE CONTROL AND ACCEPTANCE OF HIGHWAY MATERIALS AND CONSTRUCTION

THE PROBABLE COST OF A STATISTICAL QUALITY CONTROL SYSTEM WAS ESTIMATED BY PROJECTION OF CURRENT COSTS OF CONTRACTORS AND PRODUCERS WHO ARE CURRENTLY MAINTAINING VOLUNTARY TESTING PROGRAMS. ESTIMATES BASED ON DATA OBTAINED INDICATE THAT THE COST OF AN ACCEPTABLE DEGREE OF QUALITY CONTROL OF HIGHWAY MATERIALS OR CONSTRUCTION BY THE CONTRACTOR OR PRODUCER WOULD AVERAGE ABOUT 4 PERCENT OF CONTRACT PRICE. COMPARISONS OF RELATIVE COSTS INDICATE THAT THE OPTIMUM QUALITY ASSURANCE SYSTEM WOULD BE QUALITY CONTROL BY THE CONTRACTOR WITH ACCEPTANCE TESTING BY THE STATE AGENCY. THE DOLLAR COST OF SUCH A SYSTEM IS ESTIMATED TO BE ABOUT 20 PERCENT LESS THAN THAT OF CURRENT PROCEDURES. THE ECONOMIC BENEFITS IN TERMS OF THE DEGREE OF QUALITY ASSURANCE OBTAINED BY THIS SYSTEM AS COMPARED TO THE EXISTING SYSTEM ARE ESTIMATED TO BE EVEN MORE FAVORABLE. A STUDY OF THE SIZE OF BUYER'S AND SELLER'S RISKS WAS COMPARED TO THOSE WHICH WOULD BE ASSOCIATED WITH REVISED SPECIFICATIONS AND STATISTICAL SAMPLING PLANS. THE LOWEST RISKS FOR THE SAME LEVEL OF TESTING EFFORT WOULD BE REALIZED WHEN A STATE OF STATISTICAL CONTROL OF PRODUCTION AND CONSTRUCTION PROCESSES WAS OBTAINED. /AUTHOR/

  • Corporate Authors:

    Materials Research & Development

    ,    

    Federal Highway Administration

    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590
  • Authors:
    • Hudson, S B
    • Bowery, F J
  • Publication Date: 0

Subject/Index Terms

Filing Info

  • Accession Number: 00214524
  • Record Type: Publication
  • Source Agency: Federal Highway Administration
  • Contract Numbers: DOT-FH-11-7272
  • Files: TRIS, USDOT
  • Created Date: Mar 20 1972 12:00AM