However, the settlement occurred too late in the week for timetables to be adjusted, leading to the cancellation of several Scottish services this weekend.
CrossCountry trains will no longer call at Dunbar or Berwick-upon-Tweed; and all services north of Edinburgh, including to Glasgow and Aberdeen, have been cancelled.
CrossCountry’s Managing Director, Shiona Rolfe, said: “Though we are pleased to have made progress in our negotiations with RMT colleagues, I am sincerely sorry for the significant disruption that customers will nonetheless experience this Saturday 18 October.
“Timetabling processes require train operators to finalise planned services several days in advance, which means that we are not able to reinstate a normal timetable for CrossCountry services in time for Saturday.
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She added: “I would urge all those planning to travel on CrossCountry routes this Saturday to check options to change or cancel their journey at no cost on the CrossCountry website.”
An RMT spokesperson said: “We have suspended strike action this Saturday after making progress in talks.
“We are still in dispute and seeking a negotiated settlement.”
The RMT is set to return to the picket line on the 1st of November.