What would be great is to have some vehicle animation tools within Infraworks. Basically a simplified version of civil view from 3DS Max.
Have a dialog box with options to choose a path (road or design road) or be able to draw a (transparent?) path. Be able to select vehicle(s) and then offset and rotatioon along with frequency (single, multiple intervals, speed, loop). Also have a timer so that the animation can be set to pause for a short period of time and then carries on.
Cheers,
James