Talks aimed at averting a strike by thousands of Network Rail workers over the bank holiday will be held today at the conciliation service.
The Rail, Maritime and Transport union is planning a 24-hour walkout from 5pm on Monday May 25, and a 48-hour ban on overtime.
The union is warning that rail services will be at a standstill on Tuesday morning after Bank Holiday Monday if the strike goes ahead.
Union members have rejected a four-year deal worth £500 this year and three years of increases matching RPI inflation as well as a no compulsory redundancy commitment to December 2016.
Members of the Transport Salaried Staffs' Association have also voted for a strike.
Union leaders will meet NR bosses for talks at Acas.
Comments: Our rules
We want our comments to be a lively and valuable part of our community - a place where readers can debate and engage with the most important local issues. The ability to comment on our stories is a privilege, not a right, however, and that privilege may be withdrawn if it is abused or misused.
Please report any comments that break our rules.
Read the rules here