It´s really strange that nobody has told this yet.
These days I have been doing some test to get the best procedure to make "entrance lane" and "exit lane" with these 2 types (parallel and Tappered):
![11.gif 11.gif](https://forums.autodesk.com/t5/image/serverpage/image-id/222962iD6F7C8E70FC2A224/image-size/original?v=mpbl-1&px=-1)
I had to made a lot of extra steps manually so I don´t understand why Civil 3D doesn´t implement tools about this.
For example, PowerCivil has this:
https://www.youtube.com/watch?v=8IDKysYvGvw