U.S & Canada Rapid Transit Systems

https://www.youtube.com/watch?v=nJppKSGmxi4

7 cities on the East Coast of the United States have subway systems
https://www.youtube.com/watch?v=E0GjF9VY9Qg

Atlanta
https://www.youtube.com/watch?v=UkhoP4TSGU4

https://en.wikipedia.org/wiki/Bombardier_Innovia_Metro#Delivered_rolling_stock_and_systems