I can only share our "train strike" experience last June (2016). We had tickets for a 6:30am train from Monterosso to Pisa, as we had to catch a noon flight from Pisa to Dublin, IR. I went to the hotel desk at 9:00pm the night before departure to pay our bill, and just happened to see a flier stating that a train strike was beginning the next morning at 6:00am. I expressed my concern regarding the strike to the receptionist, explaining that we had to catch the 6:30am train. She casually mentioned that the strikes don't always start on time, and that the early morning trains generally run. The next morning, while standing on the train platform at 6:15am, the announcements began.......The train system was on strike and there would be no trains. Monterosso is the only village in the Cinque Terre that allows cars. So our adult daughters remained in the taxi area, trying to flag a taxi, while my husband & I returned to the hotel, to see if the receptionist could provide assistance. She gave us a blank look, then suggested calling a taxi driver they often recommend. Called the taxi driver, who told us that EVERYONE was trying to get a taxi due to the train strike. (Really?) Returned to the taxi area. Fortunately, one of daughters is fluent in Italian, so she started calling local taxi drivers. Finally one agreed to "squeeze us" into his van. When the driver arrived, he refused to take us because he didn't think there was enough room for us AND the luggage. The owner of the van pulled up and started yelling at the driver, while jamming all of our luggage in the back, and pushing one of us in the van sitting on the floor, and another one of us sitting on the floorboard. The driver, clearly not happy, took off at a high very high speed on the winding Italian roads, and we all held on for dear life. By the time we arrived at the Pisa airport, we were a mess.......But thankful to still be alive!
I realize that not everyone has the same experiences w/Italian train strikes. However, after having this experience, we've decided not to take any chances w/train strikes. . If the trains say they're going on strike, we will proceed as if they are truly going on strike. We will be spending a week in Southern Tuscany this Fall. We will take the train from Rome to Florence. But once we leave Florence, we're renting a car! ;)