The Rail, Maritime and Transport union has said the decision by its members to strike after "decisively rejecting" a pay package offered by Network Rail was an indication of the "anger" felt by workers.
RMT general secretary Mick Cash said: "This is a massive mandate for action and shows the anger of safety-critical staff across the rail network at attacks on their standards of living and their job security.
"It is now down to NR to start taking this issue seriously, to understand the deep-seated grievance felt by their staff and to come forward with a renewed offer which protects pay and jobs."
RMT union members backed walkouts by 4-1, on a turnout of 60%, in a sign of protest against a pay offer of £500 this year followed by rises matching RPI inflation over the next three years.
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