We need a way for a vehicle to follow a specific path. Maybe the brick can have a path according to the path it shows on the brick. I.E. a path that follows the curves and such on the road bricks. Each brick could be evented to set the velocity. That way if it reaches the station, it could set velocity to 0, and delay the event that sets velocity to the starting speed. Not only could that be used for Roller-Coaster, but for a train, and a bus.