scope:

This practice provides guidance and example specification language intended for use by Owner- Agencies in the development of specific contract language when requiring the measurement and evaluation of ride quality and compliance using inertial profiling systems (IPS) and the International Roughness Index (IRI) as the quality measure.

If any part of this practice is in conflict with references made, such as ASTM or AASHTO Standards, this practice takes precedence for its purposes.

The values stated are in U.S. Customary units and are to be regarded as the standard.

This specification 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 specification to establish appropriate safety and health practices and determine the applicability of regulatory limitations related to and prior to its use.