Kirkby line passengers are advised to plan ahead as there will be some temporary changes to timetables.
From Monday 14 November there will be adjustments to the timetable and a reduction in the frequency of trains.
The changes will allow for an increase in test runs on the new Class 777 trains, as part of preparations for the phased introduction into passenger service.
The changes will see the frequency of weekday services reduced from four trains per hour to three between 07:00 and 19:00 from Monday 14 November.
A normal service will operate before 07:00 and after 19:00 on the affected days.
Saturday and Sunday services remain unchanged and will run as normal.
Zoe Hands, Chief Operating Officer at Merseyrail said:
“We are continuing with test runs on the network as part of preparations for the introduction of the new trains.
“We would like to apologise to our passengers for the disruption that is being caused and thank them for their patience while this essential testing takes place.”
Passengers can find out full information about the timetable changes at www.merseyrail.org