A topographic survey measures the rise & fall of the land and can include accurate details of site features such as dwellings, ancillary structures, vegetation, services etc. The survey enables spatially accurate data to be presented in a 3D format for use by other professionals. The topographic survey can be produced using a variety of equipment from traditional survey equipment through to drones & aerial imagery.
A Terrain model is a 3D digital model illustrating the rise & fall of the land. A terrain model is typically extracted from the results of a Topographic Survey or compiled from existing records provided by local and state government authorities. The terrain model can be used for planning & design, for mapping & management of overland flow through to detailed engineering design & cut/fill calculations on developments.
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