I think the session I did on Advanced Corridor Modeling @ AU is archived.
However a big key to good corridor modeling is NAMING convention and good names for your components, and or things they should use for targets....
The one I posted might prove a good bad example of how NOT to not name things clearly....
If I get a chance I will clean it up...and repost.
OR
send me some polylines of that job in the correct location in space and I can mock something up....then you can insert it into your file...and revise assemblies IF require.
Limit that by providing roadway and or other sections so I can make the assemblies correctly from the start.