The country will face further rail strikes this summer after talks between unions and Network Rail broke down on Wednesday.
The RMT said its members will walk out for 24 hours on July 27 after rejecting a "paltry" pay offer from the train provider.
RMT general secretary Mick Lynch said: "The offer from Network Rail represents a real terms pay cut for our members and the paltry sum is conditional on RMT members agreeing to drastic changes in their working lives.
"We have made progress on compulsory redundancies.
“But Network Rail are still seeking to make our members poorer when we have won in some cases double what they are offering, with other rail operators.”
London Overground, LNER, Southeastern and Great Western are among the companies affected by the industrial action.
The walk outs are set to cripple rail services this summer, and it is another blow for London commuters and businesses hit with severe disruption by a series of national strikes were held in June.
It could have even more impact than during last month’s strikes by 40,000 RMT workers.
RMT members have been in negotiation with operators over pay and job losses.
Network Rail union workers will strike from 2am on Wednesday July 27 for 24 hours. Other train operator workers will take action from midnight.
Mr Lynch added: "The train operating companies remain stubborn and are refusing to make any new offer which deals with job security and pay.
"Strike action is the only course open to us to make both the rail industry and government understand that this dispute will continue for as long as it takes, until we get a negotiated settlement.
"The public who will be inconvenienced by our strike action need to understand that it is the government's shackling of Network Rail and the TOCs that means the rail network will be shut down for 24 hours.
"We remain open for further talks."
