Add some real-world character to your roads by laying a spline of cracks on top.
This 24ft-wide spline mixes 4 different crack patterns in a random sequence. The sequence can be instantly re-shuffled by moving any spline point. It is designed to fit 2 traffic lanes on gfisher's AASHTO roads, but may look OK on other roads too. Created in 3DS Max 2009 from mesh files kindly provided by gfisher. 6 triangles and 1 material per repeat unit.