The following are the various surfaces created by Carlson Takeoff or the Civil SiteNet menu:
Existing:
- -OG (Original Ground "before zones") is the existing surface.
- -ZE (Original Ground with Subgrade "after zones") is the existing surface less any existing subgrade adjustments specified via Define Layer Target/Material/Subgrade.
- -EX (Original Ground with Subgrade/Topsoil Removal "after zones and topsoil removal") is the existing surface less any existing subgrade adjustments specified via Define Layer Target/Material/Subgrade less any topsoil removal specified via Topsoil Removal/Replacement.
Design:
- -BS (Design without Subgrade/Topsoil Replacement "before zones") is the design surface.
- -ZN (Design with Subgrade "after zones") is the design surface less any design subgrade adjustments specified via Define Layer Target/Material/Subgrade.
- -FN (Design with Subgrade/Topsoil Replacement "after zones and before topsoil replacement") is the design surface less any design subgrade adjustments specified via Define Layer Target/Material/Subgrade less the topsoil replacement specified via Topsoil Removal/Replacement.
NOTE: Topsoil replacement is independent of the Layer Target/Material/Subgrade settings which have no effect on the topsoil replacement. If Topsoil Replacement is to be excluded from an area, specify a Topsoil Replacement polyline for the exclusion.
Over-Excavate:
(only available in TakeOff)
- -OX is the over-excavate surface specified via Define Layer Target/Material/Subgrade → Add Target.