Avanti passengers have been urged only to travel if strictly necessary on coming strike days.
RMT (National Union of Rail, Maritime and Transport Workers) workers working for train operating companies will walk out on November 5 and November 9, while the union's members working for Network Rail are scheduled to strike on November 5, 7 and 9.
Strike action by the RMT union has also been announced for Avanti West Coast Train Managers on November 6, while the TSSA (Transport Salaried Staffs' Association) union has also announced strike action on November 5 and 9.