Dieter, I learned my lesson on Friday (thankfully I wasn't impacted by the strike but it is always a possibility!). If I had checked the Railusers forum the night before, I probably wouldn't have travelled as they had posted up a warning that the disruption in Cork was likely to spread to other lines in and out of Heuston on Friday. Like a previous poster said, they do tend to keep actively informed about what is going on in Irish Rail.