Here are the basics of what you’ll need to know:
Look first at the “SETTORE” (sector) column for the word “TRASPORTI” (transport), which will indicate it’s impacting some form of transportation.
Scan the “DATA” (date) column to see if any of them correspond to dates during your trip. Then look across at the “DOVE” (where) column to see if any of those strikes are impacting the place you’ll be on that date. Note that if you see the word “NAZIONALE” in that column, it means the whole country is affected.
Finally, if you find a strike happening in the city you’ll be visiting, look at the “SCIOPERO” column to see precisely what transportation is on strike – it could be all trains, a certain station, just buses, or some combination of transportation. Click on the link in that column to get more details, including the duration of the strike (it could be anywhere from a few hours to a few days; they’re often 24 hours).
Here is a more simplistic resource, in English.