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AASHTO R 48
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AASHTO R 48 2010 Edition, January 1, 2010 Standard Practice for Determining Rut Depth in Pavements
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Description / Abstract:
This practice describes a method for determining rut depth in
pavement surfaces from transverse profile measurements. Five
transverse profile points are the minimum number of points required
to determine rut depth. While this practice is based on a
five-measurement transverse profile, more than five measurements
greatly improve the accuracy and enhance the likelihood of
identifying the maximum and average rut depth given survey vehicle
wander and various rut configurations.
Procedures are defined for measuring a transverse profile and deriving a rut depth, but detailed specifications are not included for equipment, instruments, or software used to make the measurements. Any equipment and/or procedure that can measure as specified, with the accuracy stipulated herein, and that can be adequately calibrated is acceptable for this method.
This practice does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this protocol to establish appropriate safety and health practices and determine the applicability of regulatory limitations related to and prior to its use.
Procedures are defined for measuring a transverse profile and deriving a rut depth, but detailed specifications are not included for equipment, instruments, or software used to make the measurements. Any equipment and/or procedure that can measure as specified, with the accuracy stipulated herein, and that can be adequately calibrated is acceptable for this method.
This practice does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this protocol to establish appropriate safety and health practices and determine the applicability of regulatory limitations related to and prior to its use.