I googled target aliasing inroads and it returned the PDF from Colorado DOT. This link is the TOC to all of their tutorials. It has zip files with the data sets.
www.coloradodot.info/.../labs-for-inroads-xm
That same google search returned video links and some pages in these forums. As I said, I have used target aliasing successfully in the past. But to try and talk you through it, I'd have to dig up those projects, re-learn its workflows before I could share the knowledge - with this, you will have worked through an example before I can even locate and re-learn the tool.
(It took three tries to get this link working.)