Will Meyers' Blog
I built a tool that let's you plan trips using only public transit in the United States (no Amtrak/Greyhound/etc). With that, I collected a ton of data on public transit routes: over 16,000 routes! Here's some fun analysis that I though others would find interesting.
Routes by color
What's the color distribution of public transit look like?
Color distribution by type of transportation
Do modes of transportation get colors more frequently?
Longest services
Which service has the longest line?
Routes that cross state borders
Which states share the most routes?
Checkout ahhhtrak if you want to plan a long trip using only local public transportation.