A second 48-hour strike means no trains will run on most of Scotland’s railway lines on Friday and Saturday.
Network Rail workers staged with first of two 48-hour walk-outs on Tuesday.
ScotRail urged people to only travel if necessary, with services running on just 12 routes across the central belt, Fife and Borders.
Members of the Transport Salaried Staffs Association (TSSA) who work for Network Rail voted overwhelmingly to accept a pay offer on Thursday.
But the Rail, Maritime and Transport (RMT) union remains in dispute with the national railway operator after its members rejected an offer earlier this week.
Disruption to rail travel across Scotland continues and will still have an impact on Sunday, the day after the second 48-hour strike ends.
Which ScotRail services are running?
The services will start at 7.30am and will end at 6.30pm each day.
The services running are:
Edinburgh – Glasgow via Falkirk High: Two trains per hour
Edinburgh – Helensburgh: Two trains per hour
Edinburgh – Glasgow via Shotts: One train per hour
Edinburgh – Cowdenbeath: Two trains per hour
Edinburgh – Tweedbank: Two trains per hour
Edinburgh – North Berwick: One train per hour
Edinburgh – Larbert: One train per hour
Glasgow – Larbert: One train per hour
Glasgow – Falkirk Grahamston: One train per hour
Glasgow – Hamilton/Larkhall: Two trains per hour
Glasgow – Lanark: Two trains per hour
Milngavie – Springburn: Two trains per hour
Final services will depart well before 6.30pm, ScotRail warned, with customers urged to ensure they know when their last train will run.
Further strikes set to disrupt Christmas travel
Trains will be disrupted again when further action takes place over Christmas.
RMT members working for Network Rail will strike from 6pm on Christmas Eve until 6am on December 27.
Train passengers planning Christmas Eve trips are being told to complete journeys as early as lunchtime due to industrial action.
When the strike was announced, the RMT said it will “only affect engineering work and not train services”.
But several operators across the UK have issued alerts to passengers warning of disruption.
Services run by train companies are usually exceptionally busy on the afternoon and early evening of Christmas Eve.
But Avanti West Coast’s last trains will be as early as 10.40am from Glasgow to London Euston and 12.34pm from London Euston to Liverpool.
Great Western Railway is urging customers to only travel on Christmas Eve if it is “absolutely necessary”.
Those planning to travel are being told to book a seat for a specific service and “complete their journeys by lunchtime”.
South Western Railway said its services will “shut down at 3pm”, with last trains departing as early as noon.
It told passengers to “only travel if absolutely necessary.”
The RAC said disruption to rail services may lead to an even bigger spike in traffic on Britain’s roads on Christmas Eve as millions of people make getaway journeys.
Network Rail chief executive Andrew Haines said: “TSSA and Unite members have both voted to resoundingly accept the very same deal that the RMT continue to reject.
“We know there is a sizeable number of RMT members who want this deal and we can see that strike action is beginning to break down.
“Thousands of colleagues have refused to strike this week, instead coming in to work to keep services running and Britain moving. It is time the RMT executive put their members’ interests first and end this dispute.
“Their needless strike action is sabotaging the railway and will cost our employees, their members, dearly.”
A Department for Transport spokesman said: “It will come as a relief to the public and the workforce that TSSA has accepted this offer, which guarantees their members a fair pay rise and no compulsory redundancies while moving us a step closer to fixing our railways.
“The tide is turning and it is clear to everyone that this offer is fair and reasonable, giving better pay to workers but delivering vital reforms to our railways.
“We urge the RMT to back this deal and call off their strikes – ending a dispute which not only damages the rail industry and our economy, but ruins festive plans for hard-working people after two years of virtual celebrations.”