I don't think it's as simple as smooth or coarse It depends on the material itself Tarmac ,concrete ,ashfelt or something else , they are all different.
And do mean in the wet or dry or both ?
If you mean overall I do know the answer . It is the surface that is at RAF Marham which is a special ashfelt . It costs an absolute fortune to put down so it is not remotely practicle for roads but you did ask the question
Water is the main problem ( obviously) . Wet and grip don't go together.
The problem with most road surfaces is that they are not porous so have to be cambered . If they could be flat there would be more grip.
The special ashfelt at ?Marham is porous and this is obviously a huge advantage driven on it at just over 170 mph I can say that is the best surface I have ever been on by miles and pretty much everyone who was there agreed.
It is smooth by the way.