ASTM E1926-08(2021) PDF

Scope: 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).2 Additional technical information is provided in two Transportation Research Board (TRB) papers (3, 4). 1.4 The values stated in SI units are to be regarded as the standard. The inch-pound units given in parentheses are for information only. 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

ASTM E1926-08(2021) Referenced Document

ASTM E1082 Standard Test Method for Measurement of Vehicular Response to Traveled Surface Roughness*， 2024-01-01 Update
ASTM E1170 Standard Practices for Simulating Vehicular Response to Longitudinal Profiles of Traveled Surfaces*， 2023-03-01 Update
ASTM E1215 Standard Specification for Trailers Used for Measuring Vehicular Response to Road Roughness*， 2024-01-01 Update
ASTM E1364 Standard Test Method for Measuring Road Roughness by Static Level Method*， 2023-12-01 Update
ASTM E1656/E1656M Standard Guide for Classification of Automated Pavement Condition Survey Equipment
ASTM E177 Standard Practice for Use of the Terms Precision and Bias in ASTM Test Methods
ASTM E2133 Standard Test Method for Using a Rolling Inclinometer to Measure Longitudinal and Transverse Profiles of a Traveled Surface
ASTM E867 Terminology Relating to Vehicle-Pavement Systems
ASTM E950/E950M Standard Test Method for Measuring the Longitudinal Profile of Traveled Surfaces*， 2022-11-01 Update

2021 ASTM E1926-08(2021) Standard Practice for Computing International Roughness Index of Roads from Longitudinal Profile Measurements
2008 ASTM E1926-08(2015) Standard Practice for Computing International Roughness Index of Roads from Longitudinal Profile Measurements
2008 ASTM E1926-08 Standard Practice for Computing International Roughness Index of Roads from Longitudinal Profile Measurements
1998 ASTM E1926-98(2003) Standard Practice for Computing International Roughness Index of Roads from Longitudinal Profile Measurements
1998 ASTM E1926-98 Standard Practice for Computing International Roughness Index of Roads from Longitudinal Profile Measurements