Add route types to the map so you can find a route using only roads, or not using the highway

I think this would be pretty useful because sometimes I’m following a route in a car with racing slicks but the path makes me go onto dirt. I would also be good for challenges with friends like racing to somewhere without using the highway.

That’s something that has been bothering me since FH2!
A simple filter option so the route is calculated on surface preference of the player would be pretty easy to make.