I start with an AutoCAD polyline of the alignment and open the drawing in either Map 3D or Civil 3D (Civil 3D includes the necessary Map 3D command). My most common need is to create a KMZ of a roadway or railway alignment. Here is a workflow I use to create KMZ files from Civil 3D or Map 3D. Restructure Parts or Assemblies within the Inventor Browser.Restructure the Parts List and Synchronize with Balloon Numbers.
