This excellent feature on PBS's NOW series focuses on Charlotte's advancement in rail transit. It touches on Charlotte's successes with the Blue Line, as well the challenges mass transit can face on the state and federal levels - particularly in North Carolina.
The video is approximately 25 minutes in length and well worth the time. Third Ward's own Armature Winding appears in one frame (oddly, in a segment about South End).
Thanks both to Jennifer and Greg for the tip.