On 24/03/2018 10:44, NY wrote:

They *can* get it right.

I started reading this link, but gave up, as it's rather lengthy.

http://www.ukroadsliaisongroup.org/d...703C6A36E7C811

The short story is that it can be harder to repair potholes than you'd
expect. One reason is that there may be inadequate foundations, which is
why the pothole appeared in the first place.