Volumes are calculated between the surfaces of two separate triangulated models. Any number of surfaces can be associated with a model. Volumes are then categorised by each surface and can be further categorised by depth or even gradient of slope. For each surface that is applied to a model a dip (construction depth) can be applied. Volumes can then be measured between the dipped surfaces of the two models. This is useful for earthworks measurements to allow for imported materials such as areas of resoil, road construction, concrete slabs or for topsoil strip or areas of hard excavation.  A further model can also be used to define specific measurement areas within the volume calculation area. Boreholes can also be introduced to the model to allow for the sub-strata. Volumes of the different materials within the models can therefore be easily generated. Isopachs can be displayed to highlight depths and areas of cut and fill. Customise volume components using the NRG volume compiler allowing for further breakdown of volume results enabling automatic generation of the highways method of measurement. As well as surface to surface measures, quick calculations of stockpile volumes can be carried out in a matter of seconds. Cross sections can easily be generated providing an ideal graphical deliverable to the client, showing cut and fill areas. They are also an excellent method verifying the results of your primary volume calculation. Base DTM Map Cross Sections