A kazillion roads have already been created for Trainz but, nevertheless, none of them seem to meet everyone's needs. So I've created Yet Another Road Network -- a set of models mostly suited for modeling U.S. roads. These probably won't meet everyone's needs either, but hopefully some people will find them useful. :p
This particular model is a spline of two-lane, dashed-line road with sidewalks open on both sides. Use this where you need openings for parking lots of whatnot along a stretch of YARN L2 DL1 +Si +Sh (road with sidewalk).
See the included naming-conventions.txt file for information about the attributes encoded in the asset's name.