Italian work actions occur frequently enough that there is an Italian website with rail strike information:
https://www.italiarail.com/strike-information
Strikes are a part of the reality of Italy’s railway system. But
there's good news! Italians schedule strikes in advance. It's true,
their transportation strikes are scheduled.
Despite this, an Italian transport strike can catch travelers
off-guard. Non-Italian speakers don’t typically have access to the
schedules in the same way Italians do, since we don’t read Italian
newspapers or speak Italian well enough to decipher the strike
schedules online.
But there are a few resources that will help you figure out if an
Italian train strike will impact your trip, and it never hurts to
check them before you head off to on your trip to Italy. The best site
to use for tracking Italian transportation strikes Commisione di
Garanzia Sciopera is only available in Italian. There’s also a site
that’s in English: Easy Travel Report, click on “Italian strikes” to
get to the Italy section.
http://www.cgsse.it/web/guest
http://www.easytravelreport.com/