AASHTO R 54-14 (2022)

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.

This standard was formerly designated as provisional standard MP 17. Prior to that, it was known as PP 51.