Merseyrail said it would be operating a limited train service during next week's planned walk-out by the RMT union.
The 24-hour national strike, planned for Wednesday, July 27, is part of the bitter dispute involving Network Rail staff which has already seen three strike days take place last month.
However, unlike on those occasions - when nearly rail services including Merseyrail were brought to a complete standstill - the Merseyside operator said this time it would be running a limited service. This is because Merseyrail staff are part of a different union and are not involved in the dispute.