1330
Tr(rule)am
(midwest.social)
Be sure to follow the rule before you head out.
Rule: You must post before you leave.
Huh, I'm riding the tram/subway frequently and never noticed any issue when it's raining.
Maybe your trams have fewer powered axles? I know of a city whose trams solely have powered axles, allowing them to drive on unusually steep gradients in any weather.
Sand
My city is pretty flat, so I'd guess that they don't need all powered axles? In the subways it happens more frequently on the longer trains, that are full, so during peak hours.