Since the “Siteless” options was made available within Autodesk Civil 3D, Alignments have defaulted to the “<None>” site. When placing an Alignment in a Site they may end up creating more problems than anything. One use I found for Sites is creating dynamic offsets to represent Right-Of-Ways or Easements.
Once the Offset Alignments have been created and moved into a Site if they touch a parcel it will automatically split them. If the Centerline is edited the offset will be updated too.
About the AuthorMore Content by Leo Lavayen