Registered Member #727 Joined: [ 10:25 ] [ 12 Nov 2004 ]
I'm no expert, but as far as I know the surface maps cares about stuff like the sound footsteps make (different on concrete than in sand) and the amount of dust a driving car generates. You can see the latter well in Deathrace. On the road, there is no dust. But on the long beach, there is a lot of dust.
Someone with more experience might, of course, know better. I'm just guessing and using info I picked up somewhere.