The designer version was installed which has Landmark, Architect, and spotlight but there still isn't a NURBS roadway command anywhere in the program, is it a seperate downloadable function? Not sure if a NURBS roadway would solve my problem anyway...
So far I've been turning each road segment into its own site modifer with its own pad and boundary by checking "site modifier" in the object info palette. The pads/boundaries do overlap which may be the cause of the problem, but I didn't have any issues with the first several roads I modified to the site (which did overlap).
I've tried to create pads and boundaries that go over the entire road instead of around each segment, which may solve my problem. However, I can't seem to get the pad to conform to my site. In other words, the road is curved and placed along a hill, but when I draw a pad around it in the "top/plan" view I can't get it to match up to the elevation of my road on the site. If that makes sense?
Thanks for your help! Still working on it