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
US Cities With the Highest Rates of Public Transit Ridership - WorldAtlas
Study shows subway systems develop in remarkably similar ways
List of metro systems - Wikipedia
China to Tunnel 800 Miles of Subway
The Case for the Subway - The New York Times
Subway Maps for Cities without Subways - Urban Omnibus
List of metro systems - Wikipedia
How Your City's Public Transit Stacks Up | FiveThirtyEight
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Which US cities have good and bad public transportation - Vox
The World's Best Subways
4 Unique Solutions to America's Failing Public Transportation System | Earth.Org
10 Cities With The Best Public Transportation | Remix Blog
Why don't more U.S. cities have metro systems like New York? - YouTube
List of U.S. cities with high transit ridership - Wikipedia
Here's How Tiny Toronto's Subway System Is Compared To Other Subways Around The World - Narcity
UrbanRail.Net > America > USA > New York > NEW YORK CITY Subway & PATH
Navigating Washington, DC's Metro System | Metro Map & More
Which USA cities have operational subway trains? - Quora
Chart: The Subway Systems With The Most Stations | Statista
