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ADN Webcast
Model-Based Design
Geometry Layout Enhancements
§Best fit alignment and profile
§Automatic speed and criteria-based curve widening
§Offset transitions in curve conditions
§Extending profile tangents to a PVI
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Expanded toolset for complex road design.
WideningDialog.jpg Full Curve with Widening.jpg
In AutoCAD Civil 3D 2011 software, enhanced geometry layout capabilities, purpose-built for road design, have been added to provide you with more options.

With the 2011 release of AutoCAD Civil 3D, you can:
1.Create either an alignment or design profile from a series of points or AutoCAD elements in the drawing file. This functionality improves upon existing best-fit entity options when laying out alignments and profiles, providing a method that is more familiar to surveyors.
2.Widen roadways in curved sections based on local rules to provide for safer conditions. This new feature adds offset alignments in these locations to account for the widening; the offset alignments can then be used in the corridor to help make a more accurate model of the road surface.
3.Handle offset transitions in curve conditions with more flexibility. Linear and s-shaped transitions to the offsets are allowed and work on any alignment subentity.
4.Create a point of vertical intersection at the intersecting grade line of two profile tangents. This provides a more accurate means of establishing a design profile that more closely follows existing conditions. Again, this functionality was originally available in the Subscription Advantage Pack for AutoCAD Civil 3D 2010.