One of my favorite new feature of Civil 3D 2015 is the option to stagger your corridor label points in section views. FINALLY! ! ! !
I could go into detail of how this works but in this case a video is worth a thousand words. Check out this video created by our good friend from Autodesk, Jerry Bartels. Watch the video in its entirety because he not only shows you how the new labels work, but he show you how to apply the new labels to sections created in an earlier version of Civil 3D and opened in 2015 and how to address a minor issue you may or may not run into: