Definition
Standard Test Method for Measuring the Longitudinal Profile of Traveled Surfaces with an Accelerometer-Established Inertial Profiling Reference. Used with SSI profiler hardware in the Enterprise Tier for FHWA-certified IRI (International Roughness Index) measurement. Ensures profiler data meets federal reporting requirements.
In context
FHWA-certified roughness reporting depends on profiler data collected to the ASTM E950 method.