GarageGames/Torque3D — pull request #298 by Dwarf-King (2013-04-02 20:41:29+00:00)
Title: meshRoad fix for PhysX version not having collision

see this link.

http://www.garagegames.com/community/forums/viewthread/130181/1#comment-842372

The PhysX solution works like a charm so I think it would be good to have implemented as standard.