The sand is over metal gratings and manhole covers so that the horses don't slip. OK, everyone loves poking fun at the corronation, but the mindless repetition of made up nonsense is a bit tiresome

Attention to detail, the British way.

Looking at the shapes, I think you're right Adrian.

the "potholes" assertion was debunked many times on twitter as soon as it appeared

Still, there are enough around the place.