I m new in civil 3d road design so my question may be basic.when i prepare a corridor and procede to get cut and fill it appears as zero.i think i made some mistake at a stage when in section line we decide surfaces...kindly guide me step wise from section line selection to cut/fill calculation also give me the general concept regarding selecting surfaces during cut/fill volume calculation???
You have to go to volumes>> calculate materials
The two surfaces you will most likely be interested in are the EG and Datum surface created from the Corridor.
Also when creating the corridor top & datum surfaces be sure to apply the appropriate "overhang correction" for top or bottom links and add a surface boundary to each surface.
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