Whew... I'm tired. I just repaved all of the roads in the whole world. What a job. But I do love driving a D-9 ;).
I just got the NuRoads Repaver program at FSGenesis. I added it onto the American Roads addon I already have.... but it also does the rest of the world while it is at it.
The textures create more varied roads than the stock ones. You can see cars on the roads, the headlights are spaced erratically and more realistically, some roads are darker asphalt and some are lighter, and so on. They also have seasonal textures... and some roads can get snow drifts on them.
Check it out at the FSGenesis website.
best,
.................john