1326
Tr(rule)am
(midwest.social)
Be sure to follow the rule before you head out.
Rule: You must post before you leave.
If San Francisco informs, light rail streetcars are a gateway to underground subways. It gets the city in the habit of getting on a railcar to go places while the greater infrastructure (the tunnels) are built.
MUNI is mixed undeground and street. BART is over and under and being extended to this day.