Civil 3D needs to implement Civil BIM. After years of marketing it's time Autodesk actually implements Civil BIM so we can leverage an actual model based design. I want to be ablility to tell my kids that I'm designing pavement instead of getting blank stares when I tell them I designing feature lines.
Pavement needs the ability to talk to adjacent civil BIM objects such as curb and gutter, sidewalk, driveways, and other common objects you will find in the word. The pavement object should trim it's self to the other objects. So if you add curb and gutter along one edge it will join it. The pavement object found in parking lots should accept curb and gutter islands with landscaping. The grades of this island should generally follow the pavement grades with the ability to modify the curb and gutter elevations to allow for grade changes to allow for water flow.