I just downloaded Civil3D 2020 and noticed they have a new feature called DWG compare. I haven't tried it. i have no frame of reference on how well it works but conceptual this is a fantastic idea that we need in TBC. enhancement request
I think TBC could take it one step further:
- delete the same linework (Just overlapping linework which is does anyway)
- separate old linework, add prefix to layers: old-
- show the new linework, add prefix to layers: new-
This would save hours of micro analyzing or starting from scratch on some projects and help to push the idea of using CAD instead of just pdfs.