Comment by aimor

Some other live subway maps:

New York City: https://map.mta.info/

Washington DC: https://gis.wmata.com/metrotrain/index.html

Chicago: https://www.transitchicago.com/traintrackermap/

Boston: https://www.mbta.com/schedules/Blue/line

I'd like to see more, but that's about all I could find from cities themselves.