Materials risk analysis.

Details

• Creators:
  Baker, Thomas E. ; Molohon, Robert James ; McIntyre, Ruth White
• Corporate Creators:
  Washington (State). Department of Transportation
• Subject/TRT Terms:
  Materials Tests Risk Analysis Risk Assessment--Washington (State) Road Materials--Washington (State)--Testing Roads--Washington (State)--Equipment And Supplies--Testing
• Publication/ Report Number:
  WA-RD 745.1
• Resource Type:
  Research Paper
• Geographical Coverage:
  Washington
• Edition:
  Final report.
• Corporate Publisher:
  Washington (State). Dept. of Transportation. Office of Research and Library Services
• Abstract:
  State highway authorities routinely examine the quality of the materials used to build highway construction projects. Some
  
  materials are tested, some are accepted through a manufacturer’s certification of quality or compliance, some are physically
  
  inspected during fabrication and yet other materials are accepted through visual inspection. Unanswered is why some
  
  materials are more closely examined through physical testing and other materials receive much less scrutiny.
  
  This paper describes a materials risk analysis process and the conclusions from that risk analysis conducted at the
  
  Washington State Department of Transportation (WSDOT). Typical construction materials are examined for two critical
  
  risks: the risk of having a material fail to meet specification and the consequences of that material failing to meet
  
  specification. Subject matter experts (materials, construction, structures, maintenance, traffic, etc.) within the WSDOT rated
  
  these risks through a Delphi process. Results of the risk analysis classify materials into four appropriate categories for either
  
  more or less intensive examination by the state highway authority: highest risk materials undergo physical acceptance
  
  testing or are inspected during fabrication under a manufacturer’s quality system plan; moderate risk materials are accepted
  
  through the manufacturer’s certification of compliance (often combined with a quality systems plan or visual inspection);
  
  lower risk materials are accepted with a manufacturer’s certification or with a catalog cut; and the lowest risk materials are
  
  accepted through visual inspection in the field. Future materials risk analyses may be performed on periodic intervals (five
  
  to ten years suggested) to re-examine the risks and rankings by subject matter experts.
  
  
• Format:
  PDF
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:5ffbccb4606c94f941de96d044ee4c8a525e46d0cf343feef7e5d8204e23251d
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/17748/dot_17748_DS1.pdf
• File Type:
  [PDF - 763.46 KB ]