Sunday Open Thread: Urban Rapid Transit Systems of North America – Seattle Transit Blog
Clean, On Time and Rat-Free: 9 International Transit Systems With Lessons for New York - The New York Times
List of metro systems - Wikipedia
The World's Best Subways
4 Unique Solutions to America's Failing Public Transportation System | Earth.Org
US Cities With the Highest Rates of Public Transit Ridership - WorldAtlas
List of metro systems - Wikipedia
Subway Maps for Cities without Subways - Urban Omnibus
/cdn.vox-cdn.com/uploads/chorus_asset/file/9566337/shutterstock_215434102.jpg "NYC subway tops U.S. cities for most sustainable transit system - Curbed NY")
NYC subway tops U.S. cities for most sustainable transit system - Curbed NY
Subway Maps for Cities without Subways - Urban Omnibus
10 Cities With The Best Public Transportation | Remix Blog
These North American Cities Have the Best Public Transit Systems
Cities With Best Public Transportation Systems
Chart: The Subway Systems With The Most Stations | Statista
The Best Cities for Public Transportation - SmartAsset
When American transit agencies ignore the world's move to open gangways – The Transport Politic
In the United States, what cities have subways or somewhat of subways, like not full subways? - Quora
Subway Maps for Cities without Subways - Urban Omnibus
What the Subway Is Like in 16 Different Cities.
/cdn.vox-cdn.com/uploads/chorus_asset/file/13610487/GettyImages_963255338.jpg "Which US cities have good and bad public transportation - Vox")
Which US cities have good and bad public transportation - Vox
xkcd: Subways
Openings and Construction Starts Planned for 2020 – The Transport Politic
