A Road Assembly with Offset Assembly
How to Employ Some Lesser Known Civil 3D Subassemblies
Shawn Cox of Pacificad covers the basics of Assembly Offsets, the Marked Point, and generic Link subassemblies
You have a roadway and a bike path and want to deal with the two Assemblies together here's the how to.
From the Pacificad YouTube Channel.
and the Pacificad website.