Over 17,000 members of the RMT rail workers’ union at Network Rail are balloting for industrial action in two separate disputes involving maintenance and signalling and other operational staff.
More than 12,000 infrastructure workers have overwhelmingly rejected an offer from the company on the harmonisation of terms and conditions. Some 6,641 RMT members voted to reject the proposals with just 56 voting to accept.
The union has been in months of talks aimed at achieving a single set of terms and conditions for maintenance staff.
Five thousand signallers and other key operational staff are being balloted over pay and conditions after rejecting by two to one an offer of 4.8 percent this year and RPI plus 0.5 percent in 2009.
Both ballots end on Thursday of next week.
Over 400 train maintenance, shunting and cleaning staff at eight First Great Western (FGW) sites between Penzance, Swansea and London are set to strike on Sunday over working hours, overtime rates and other issues.
The workers, members of the RMT union, at Bristol, Reading, Oxford, Penzance, Exeter, Plymouth, Swansea, and Old Oak Common in London voted by three to one for strikes.
The company has refused to pay an enhanced rate for overtime or to concede a 35-hour week.