ScotRail says it is currently experiencing a driver shortage and to expect some services to be cancelled.
Today the Glasgow Central Low Level line reopened, however there are still expected disruptions caused by the shortages.
It has been caused by delayed training for new drivers during the pandemic, according to the national rail operator.
Until recently drivers would work overtime to fill in the gaps, with ScotRail saying it is "reliant" on drivers working on their rest days, however due to a recent pay dispute drivers are now refusing to work overtime.
The drivers' union ASLEF said that its intention is to recommend a ballot for strike action, following a proposed 2.2 per cent pay increase.
On the situation, ScotRail has said "a significant number of drivers, but not all, have declined to make themselves available for overtime or rest day working."
As a result of this, they say "some services will be cancelled."
The 2.2 per cent pay increase comes after three increases in pay between 2019 and 2020. Train drivers currently have an average salary of £53,444, according to Glassdoor.
Kevin Lindsay, ASLEF's Scotland organiser, said last Monday: "ASLEF members who have kept the country moving throughout the pandemic have been presented with a derisory pay offer from ScotRail management which takes no account of the cost of living crisis workers face."
ScotRail ask that you check your journey before traveling on their app or website.
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