Workers on Southern, Merseyrail and Arriva Trains North are to hold fresh strikes on 8 April, the day of the Grand National, the RMT union has said.
The 24-hour industrial action is part of an ongoing dispute over staffing and the role of conductors.
A strike planned for 4 April on Southern routes was moved to 8 April after the company offered fresh talks.
Merseyrail said coinciding a strike with the race meeting would damage Liverpool city region's reputation.
(Permalink) Arriva Trains North Merseyrail Southern Strike