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ASTM E1926-98

Historical Revision

Standard Practice for Computing International Roughness Index of Roads from Longitudinal Profile Measurements

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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).

1.2 The intent is to provide a standard practice for computing and reporting an estimate of road roughness for highway pavements.

1.3 This practice is based on an algorithm developed in The International Road Roughness Experiment sponsored by a number of institutions including the World Bank and reported in two World Bank Technical Papers (1) (2). Additional technical information is provided in two TRB papers (3) (4).

1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.


SDO ASTM: ASTM International
Document Number E1926
Publication Date Jan. 10, 1998
Language en - English
Page Count 18
Revision Level 98
Supercedes
Committee E17.33
Publish Date Document Id Type View
June 1, 2008 E1926-08 Revision
Jan. 10, 1998 E1926-98 Revision
Feb. 1, 2021 E1926-08R21 Reaffirmation
May 1, 2015 E1926-08R15 Reaffirmation
Dec. 1, 2003 E1926-98R03 Reaffirmation