FAA Chart Users’ Guide - Terminal Procedures Publication (TPP) - Terms 101 •  Visual segment -   Instrument approach procedures, including Copter approach procedures, that terminate or  have missed approaches prior to the airport/heliport, and are authorized to proceed visually, will depict the visual  flight path by a dashed line symbol from the missed approach point to the airport. On RNA charts where the visual track may only apply to a specific line of minima, the visual procedure track line  will not be shown in the planview. There will be a note directed to that portion of the procedure track. •  DME arcs or Radius-to-Fix legs (RF)  are shown as smooth arcs from a designated start point to a designated  terminus.  Traditional (NAVAID) Approach RNAV  Approach