• ASTM E1926-08(2015)
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ASTM E1926-08(2015)

  • Standard Practice for Computing International Roughness Index of Roads from Longitudinal Profile Measurements
  • standard by ASTM International, 05/01/2015
  • Publisher: ASTM

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1.1 This practice covers the mathematical processing of longitudinal profile measurements to produce a road roughness statistic called the International Roughness Index (IRI).

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