Turn up unexpectedly with some big machines.
Scrape back the crummy old road and add a fresh base of pale stone... Wait for a while (or some time, whichever is more random)... Then turn up unexpectedly with more big machines and add a layer of black gravel.
Roll flat (at this stage I didn't think the new road would be up to much).
Bring in more big machines.
Spray what we used to call tar (I think it's called tar now).
Add gravel, looking thoroughly bored by the whole process.
Repeat until the sun fades.
(Needful to say, Boy no longer wants to work in the garage where they test cars for road-worthiness. Now he wants to drive a blue roller.)