Profilograph
The profilograph is a device used to measure pavement surface roughness. It is used to measure the roughness of in-service road networks, as well as before and after milling off ridges and paving overlays.
The data collected by a profilograph is used to calculate the International Roughness Index (IRI), which is expressed in units of inches/mile or mm/m. IRI values range from 0 (equivalent to driving on a plate of glass) upwards to several hundred in/mile (a very rough road). The IRI value is used for road management to monitor road safety and quality issues.
PEI’s computerized Profilograph adds revolutionary electronics to allow bi-directional testing and multiple wheel path reporting.
Multiple wheel path reporting allows cross-lane analysis of parallel profile traces (Patented by SSI).
“Append-to-Data” capability can attach new data to existing files & allows tracking of improvement and surface conditions throughout the project.
