After a couple of experiments with different road line products, I decided to "stick" with 1/8" car pinstriping bought from an automotive chain. At 1/8" wide, the stripping is a little bit wider than scale, but it looks good and most eyes will not notice the difference. I purchased white and yellow. I found the pinstriping easier to work with from the standpoint of peeling it from the base paper and applying it to the road surface. Good luck with your project...
