https://en.wikipedia.org/wiki/Massachusetts_Bay_Transportation_Authority#Subway ,
https://en.wikipedia.org/wiki/Massachusetts_Bay_Transportation_Authority#21st_century ,
https://en.wikipedia.org/wiki/Green_Line_(MBTA) ,
https://en.wikipedia.org/wiki/Washington_Street_station_(MBTA) ,
https://www.mbta.com/stops/place-wascm
| Line | Length | Width | Platform Ht. | Power |
|---|---|---|---|---|
| Red | 69.5' | 120" | 49" | Third rail |
| Orange | 65' | 111" | 45" | Third rail |
| Blue | 48' | 111" | 41.5" | Third rail, Overhead |
| Green | 72 | 104" | Low | Overhead |
https://en.wikipedia.org/wiki/CharlieCard
https://jf-databits.blogspot.com/search?q=urban+rail
