The top layer of a road surface which is worn down by traffic.
More example sentences
- In this study, the rutting was confined to the asphalt wearing course (observed in the trenches and cores) and there was no significant rutting of older pavements despite their being at the end of their structural life.
- These signs will be kept in place pending the laying of the final wearing course on this stretch of road.
- While the road will be open to traffic from both directions the final wearing course will not be completed for a number of weeks yet.