It's a road. And it's also used for cycling, and walking. You just have to be extra careful.
Proper road, very common type of road in the countryside. You're lucky there it doesn't have grass up the middle. You'd realistically be doing about 20mph on it, although speeding up when you can see far ahead and it's straight, slowing down coming up to a bend where you cant see what's coming.
> You'd realistically be doing about 20mph on it
This is not my experience riding as a passenger with locals
It's a road, and people will do 60 mph down these.