Rail services will be affected on Saturday 5 November, Monday 7 November, and Wednesday 9 November.
Transport for Wales are advising customers not to travel by train on these dates as the majority of rail services across the Wales and Borders network will be suspended.
You can find more information on the Transport for Wales website.
Rail providers have also warned that services will be impacted on the days in between and after strike days, with some cancellations, a later service start up than usual and some routes running at a reduced frequency.
Rugby fans attending the Wales-New Zealand Autumn International at the Principality Stadium in Cardiff on Saturday 5 November are asked not to travel by train as there will be no services after the match.
Students travelling to our campuses by rail on the above dates are advised to look at alternative travel routes.
Find out more: