ASTM E3303-21 PDF Download

ASTM E3303-21 is a standard practice that describes the process of generating pavement surface cracking indices from digital images. The scope of this standard is to provide a method for quantifying pavement surface cracking using 2D images or 3D data of the pavement surface.

The main objectives of this standard are to eliminate human subjectivity and intervention in the cracking index generation process, to establish objective cracking metrics and parameters, and to ensure consistent results among different users with the same cracking data. The cracking indices derived from this standard are unitless and calculated using measurements of length, width, and area as defined in the standard.