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            Performance of No. 20 Frogs of Various Designs in Revenue Service
      

      
  Document Series
              Research Results


      
  Author
          Federal Railroad Administration


      
Report Number
              RR 18-04

  Office
              RDI-21


      Subject
                    Heavy Axle Load (HAL),
                    Track


      
  Keywords
              Special trackwork, turnout frogs, frog heel, frog point, HAL


      

      
      
              
                  
      
              
  Document
              Performance of No. 20 Frogs of Various Designs in Revenue Service_Final.pdf (1.03 MB)

      
              
      
            
      
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              Last updated: Tuesday, February 27, 2018 U.S. DEPARTMENT OF TRANSPORTATION

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