by LNelson » Thu Dec 27, 2007 1:12 am
One approach could be to use RoadNet and SiteNet found in Carlson Civil 2008:
- In RoadNet --> Settings --> Output Options, enable the Draw Subgrade Polylines toggle and note the subsequent Subgrade Polyline layer.
- Process the Road Network.
- In SiteNet use the Set Layer Target --> Set Layer for Design and select one of the Subgrade Polyline entities.
- Issue the Set Layer for Existing command to specify the layer(s) of the points and/or breaklines used to create the Existing surface.
- Issue the SiteNet --> Boundary Polyline --> Set Boundary Polyline routine (Draw --> Shrink Wrap Entities makes a fast boundary polyline).
- Issue the SiteNet --> Make Existing Ground Surface command.
- Issue the SiteNet --> Make Design Surface command.
- Issue the SiteNet --> Calculate Total Volumes command and enable the Balance Cut/Fill toggle. The subsequent report should provide an estimated vertical change required for the design model (e.g. the subgrade lines) to balance with the original model.
- Adjust the elevations of the design profile(s) of the road network.
Iterate to a solution by subsequently following steps 2, 7, 8 and 9.
Ladd Nelson
Carlson Software