The new Grading String technology is about to be released to our Advanced Road Design for CAD customers (our ARD for AutoCAD and ARD for BricsCAD customers).
Built for rapid design of features such as building pads, retaining walls and detention basins, the dynamic grading tools automatically clean up internal overlapping corners and include radial and mitre options on external corners. The surface and grading linework automatically updates as you edit your grading, so you get immediate feedback on the impact of your design changes, as you make them.
It is intended to incorporate this into Civil 3D after integrading the grading tools with the current ARD road/string design tools:
enable picking polylines to set offsets for Codes on the cross sections
attach grading strings to other string cross sections for automatic internal corner trimming
enable direct conversion of cross section codes into Strings
We've recorded a quick video of the technology and recently delivered a live webcast showing the grading tools in action (below)