About Roundabouts AutoCAD Civil 3D 2017 Roundabouts can be modeled according to defined standards.
About AutoCAD Civil 3D Enhancements
When Roundabouts in Civil 3D are created there is extra functionality over Vehicle Tracking that allows you to go construct part or all of a 3D corridor model.
About Head Up Display
The head up displays (HUD’s) show critical design values related to each arm.
About the Fastest Path Calculation
Almost all roundabout design documents leave the alignment of the fastest path line up to the designer.