Polished Aggregate

This distress is caused by repeated traffic applications. Polished aggregate is present when close examination of a pavement reveals that the portion of aggregate extending above the asphalt is either very small, or there are no rough or angular aggregate particles to provide good skid resistance.

Note: no degrees of severity are defined for polished aggregate. The degree of polishing should be significant before it is included in the condition survey and rated as a defect.