Elevation tools are used to handle 3D lines and results in CAD. It could be used to make a 3D plan of Roundabout, T/X Intersection designed in 2D view.
Slope Surface
Slope Arrows
Convert Arc to Straight Lines
Create 3D - Line…
Height Interpolation
Create Parallel 3D - Lines…
Draw Contour Marks on 3D-Lines
Get Elevation from Quadri
Get Elevation from Drawing