This tutorial demonstrates how to use Autodesk Civil 3D to save commonly used corridor assemblies, and then share them with other users.
You can create an unlimited number of corridor assemblies, with either the subassemblies that are shipped with Autodesk Civil 3D or custom subassemblies that you have created. You can save assemblies to a tool palette or catalog; either of these locations are convenient places to store commonly used assemblies available for reuse. You can also publish a tool palette or catalog to make it available for other users.