Improving Models to Consider Complex Loadings, Operational Considerations, and Interactive Threats

The pipeline industry has been generally successful recognizing and mitigating the enhanced risk associated with some integrity threat interactions. However, some pipeline failures suggest that more complex interactions must be recognized, including defect responses to variable loadings, increased loadings, complex loadings, or changing environments. Interactions of resident conditions with changing operations or environments may increase the probability of failure, reduce the failure stress, change the mode of failure from a leak to a rupture, cause development of a condition not detectable by assessment methods in use, or cause the shift of a condition from stable to unstable. A barrier to accounting for such interactions is the operator's limited ability to recognize when the loading or operating environment may have changed for the worse somewhere along the right-of-way and to quantify the significance of those conditions. Recognizing and quantifying these effects will, in some cases, require integration of information from In Line Inspection (ILI), ground or aerial patrols, or at some sites, actual monitoring or measurement of changing conditions. This report provides guidance for pipeline operators in the form of advanced interaction matrices, decision processes, and data needs for identifying and evaluating complex or interactive situations.

  • Record URL:
  • Corporate Authors:

    Kiefner and Associates, Incorporated

    4480 Bridgeway Avenue, Suite D
    Columbus, OH  United States  43219

    Pipeline and Hazardous Materials Safety Administration

    Department of Transportation
    East Building, 2nd Floor, 1200 New Jersey Avenue, SE
    Washington, DC  United States  20590
  • Authors:
    • Munoz, Eduardo
    • Rosenfeld, Michael J
  • Publication Date: 2016-12-30


  • English

Media Info

  • Media Type: Digital/other
  • Edition: Final Report
  • Features: Appendices; Bibliography; Figures; Tables;
  • Pagination: 242p

Subject/Index Terms

Filing Info

  • Accession Number: 01638918
  • Record Type: Publication
  • Report/Paper Numbers: Report No. 16-228
  • Contract Numbers: DTPH56-14-H-00004, Task III.B.3
  • Files: TRIS, ATRI, USDOT
  • Created Date: Jun 26 2017 5:41PM