Review this topic to determine which subassemblies you may want to use in your designs when building corridor assemblies.
When you build assemblies in Autodesk Civil 3D, you must use subassemblies that exist on a tool palette.
Some but not all of the subassemblies that are provided with Autodesk Civil 3D are located on a tool palettes by default. However, the Content Browser does contain the entire set of subassemblies that are provided with Autodesk Civil 3D by default.
You can add subassemblies that you use frequently to a tool palette for easy access.
Review the information in the following “at a glance” tables to help you find the subassemblies with the behavior you are looking for. In addition to providing a brief description of the use-cases for each subassembly, you will also find the name of the default tool palette each subassembly can be accessed from.