About Subassemblies
A subassembly is an Autodesk Civil 3D drawing object (AECCSubassembly) that defines the geometry of a component used in a corridor section.
About Subassembly Settings
Use subassembly settings to control the behavior of subassembly-related commands.
About Subassembly Properties
Specify administrative, parameter and codes information using subassembly properties.
About Subassembly Loop Point Properties
You can specify certain settings that determine how the loop point (attachment point) for a subassembly is drawn in layout mode.