https://www.youtube.com/user/CTAConnections/videos ,
https://www.youtube.com/watch?v=fJzhNPKtR0Q
CTA's Ride the Rails: Green Line to Harlem Real-time (2019)
https://www.youtube.com/watch?v=uDCIuxINP6M&list=PL0-sTc_CuqtURaOftjTXX5iRMCOasE1M9&index=7&t=0s
Orange Line
https://www.youtube.com/watch?v=2BLEXQkMYmc
https://en.wikipedia.org/wiki/7000-series_(CTA)
trains
