Just five rail routes will operate in Scotland on strike days this week, as ScotRail issued a warning to passengers to expect serious disruption.
A very limited number of trains will run in the central belt between 7.30am and 6.30pm on 21, 23 and 25 June.
The rail operator has warned passengers only to travel “if they really need to” on the limited services that are running next week.
Industrial action by the RMT union will also affect signalling boxes – essential infrastructure without which the network cannot run.
Workers are striking in a pay dispute with Network Rail and some Department of Transport rail operating companies.
ScotRail service delivery director David Simpson said: “It is very unfortunate to see such widespread disruption across the whole of the Great Britain rail network and we know this will be frustrating for ScotRail customers.
“Regrettably, this strike action by RMT members of Network Rail means that we will not be able to operate the vast majority of our services during the period of strike action.
“On the five routes where we are able to operate a very limited service on strike days, we’re urging customers to only travel if they really need to, and to seek alternative means of transport where possible.”
Confirmation of the strike action came as bosses in the hospitality sector said they had “lot of concerns” in the sector about the financial impact of industrial action.
UK Hospitality said across the UK the impact could amount to an “economic hit of more than a billion pounds” when the impact on the tourism, leisure and theatre sector was considered.
Meanwhile, hotels in Scotland have told how they are already being hit by cancellations ahead of the strikes.
Bosses at the Moor of Rannoch hotel and restaurant in highland Perthshire tweeted that they had suffered “mass cancellations” because of the RMT action.
With 70% of its customers travelling by train to the remote beauty spot, they said they had “lost almost all of our bookings” for the week.
Leon Thompson, executive director of UK Hospitality Scotland, said there was a “lot of concern in the sector right now about the financial impact” of the action.
He told BBC Radio Scotland’s Good Morning Scotland programme that businesses such as bars, restaurants and hotels were “still living with the financial shadow of Covid” and had been “grappling” with the lack of late-night train services in Scotland as a result of the temporary timetable brought in following a separate dispute with train drivers.
Thompson said: “I have got member businesses saying they are already taking cancellations, hotels are saying people are cancelling their trips, cancelling their stays, even for this weekend, because of the disruption next week.
“There is a lot of concern in the sector right now about the financial impact this is already having and will continue to have when we get to next week.”
He added that after “two years of lockdowns and restricted trading” this has been “the first full summer businesses will have had to be open and welcome businesses and guests”.
“Having industrial action on our railways is really just going to hold our businesses back.”
RMT general secretary Mick Lynch said that “despite the best efforts of our negotiators no viable settlements to the disputes have been created” in talks with Network Rail.
As a result, Lynch said: “We are confirming that the strike action scheduled to take place on 21, 23 and 25 June will go ahead.”
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