Not re surfaced, more like surface dressing.
We have it up here as well. 6/10 mm dry chips laid onto emulsion base. Used to be spread onto hot cut back bitumen which worked really well, but had it's issues with H&S for obvious reasons.
Problem is the emulsion is not as grippy as the cut back and is prone to chip rejection especially at corners, which is where you don't want chips to lie
Always a issue up here, bit of an ass twitching moment for me