AASHTO R 48-10 (2013) PDF Download

The AASHTO R 48-10 (2013) standard provides a method for determining rut depth in pavement surfaces using transverse profile measurements. The standard requires a minimum of five transverse profile points to accurately determine rut depth, but it recommends using more points for increased accuracy and better identification of the maximum and average rut depth.

The standard outlines procedures for measuring a transverse profile and calculating rut depth, but it does not provide specific specifications for the equipment, instruments, or software to be used for these measurements. Instead, it states that any equipment or procedure that can measure as specified, with the required accuracy and calibration, is acceptable for use in this method.