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            Analysis of Historical Non-Destructive Evaluation Probability of Detection Data for Railroad Tank Cars
      

      
  Document Series
              Technical Reports


      
  Author
          Federal Railroad Administration


      
Report Number
              DOT/FRA/ORD-21/14

  Office
              RDI-22


      Subject
                    Hazardous Materials


      
  Keywords
              Nondestructive evaluation/testing, NDE, nondestructive testing, NDT, visual testing, VT, liquid penetrant testing, PT, magnetic particle testing, MT, ultrasonic testing, UT, phased array ultrasonic testing, PAUT, probability of detection, POD, railroad ta


      

      
      
              
                  
      
              
  Document
              Analysis of NDE POD for Rail Tank Cars.pdf (3.14 MB)

      
              From 1996 to 2016, Transportation Technology Center, Inc. (TTCI) analyzed historical probability of detection (POD) data for the fusion welded tank car butt welds (BW) and fillet welds (FW) inspection using Code of Federal Regulation (CFR)-approved nondestructive evaluation (NDE) methods. The research team analyzed a total of 197 POD datasets (i.e., for both the BW and FW) using 3 different statistical approaches: traditional statistics, logistic regression based maximum likelihood estimate approach, and the National Aeronautics and Space Administration (NASA) design of experiment POD (DOEPOD). The Federal Railroad Administration (FRA) sponsored this work and the railroad tank car industry participated by evaluating the capabilities of currently CFR-approved NDE methods on the railroad tank cars welds.

***See Also:***

Analysis of Historical Non-Destructive Evaluation Probability of Detection Data for Railroad Tank Cars: Appendices A Through I
      
            
      
      
              Last updated: Tuesday, April 13, 2021 U.S. DEPARTMENT OF TRANSPORTATION

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