AASHTO M 328-14 (2018) PDF Download

The AASHTO M 328-14 (2018) standard outlines the requirements for an inertial profiling system (IPS). The purpose of this standard is to define the necessary attributes of the IPS, which, when combined with an operator, forms a complete system.

The IPS is used for measuring the longitudinal pavement profile for construction quality control and acceptance or for network data collection. It can be integrated into a host vehicle either as a standalone device or as part of a multifunctional data collection device.

One of the key capabilities of the IPS is its ability to calculate summary roughness indices, specifically the International Roughness Index (IRI). This specification is applicable to both low-speed and high-speed profilers, ensuring its usefulness in various road conditions and applications.