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Re-usable material in Corridor Modelling

Question asked by Julian Flynn on Jan 21, 2020

Is it possible to model a corridor of say a road where the existing road surface is to be milled and re-used in a structural layer of the new road? From what I have seen so far even if I nominate the existing road layers as the same material as the new road layers (in this case using boring logs to create the existing strata) I still get a corridor earthworks report saying that I am to export all of my cut and import fresh material for the new road layers. I.e. the cut and fill is only to the subgrade and the material that can be re-used in the new layers is treated as being part of the excess (in areas where I have an excess). I'm sure it would be possible somehow. Anyone have any ideas on this?