Historical Average Statewide Roughness (RS)

​The data shown here represents the changing ride quality of RS routes as measured by the International Roughness Index (IRI). IRI values increase as roughness levels increase. Consequently, lower numbers on this chart represent smoother pavements.

Average RS IRI DataAVGRSIRI.png 

                                   Average MP IRI Data2mpiri.png

  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
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