Dark Green for Bicycling
Check out the attached image. All of the dark green areas mean a dedicated bicycle trail, and these are not necessarily even all of the bike lanes, just the ones Google knows about.
Sure does make me happy. If you appreciate all of the ways to get around on two wheels this city now has to offer, be sure to thank Bike-PGH, they made this all possible. It was a much different landscape ten years ago.