Ranking roads every time they fork

Discussion created by Cilla on Jun 16, 2011
We want to create a roads layer that reflects probable amount of use.  Our idea is to set certain roads as 1 (highways) then have a process that increases the rank every time the road forks. As you get further from a 1 the road label would increase, but then it would start decreasing at the place where it starts getting closer to a 1.  Has anyone created a model that does this?