Austroads has released several detailed reports discussing laser profilometers, which are used to measure the rideability of our roadways. These reports delve into validation checks as well as repeatability and bias error checks for laser profilometers.
These reports are available for no fee after logging on to the site. LINK
In related news, SCDOT recently upgraded their profiler equipment this Spring with LMI 3D Gocator series wheel path lasers. Additionally, SCDOT has updated its rideability specifications for asphalt and portland cement concrete roadways.
Asphalt pavements provide elite smoothness and rideability, which helps lower fuel consumption and save money on vehicle wear and tear.