Workers at three rail companies are going on strike or taking other forms of industrial action this week.
Members of the Rail, Maritime and Transport union at Arriva Rail North (Northern) will walk out for 24 hours on Monday, and again on Thursday, in the long-running row over the role of guards.
RMT general secretary Mick Cash said: "Every single effort that RMT has made to reach a negotiated settlement with Northern Rail over safe operation and safe staffing has been kicked back in our faces.
"No one should be in any doubt, this dispute is about putting the safety of the travelling public before the profits of the private train companies.
"It is frankly ludicrous that we have been able to negotiate long-term arrangements in Scotland and Wales that protect the guards and passenger safety but we are being denied the same opportunities with rail companies in England.
"Prime Minister Theresa May and Transport Secretary Chris Grayling are happy to stand aside and cheer on overseas rail companies like Arriva that rip-off the British passenger with eye-watering fare increases to subsidise their domestic transport operations while throwing the guards off our trains."
You can watch a video on the crucial role of the Guard here
RMT members on South Western Railway will refuse to work rest days over the four day Easter weekend, starting on Friday, accusing the company of refusing to engage with the union.
Guards and drivers will also take further action over Easter by refusing to work in accordance with a restructuring deal.
Meanwhile, talks will be held today at ACAS over a planned 48-hour stoppage from Wednesday by RMT members on London's Docklands Light Railway (DLR) over claims of a "comprehensive breakdown" in industrial relations. RMT members on the DLR are due to strike for 48 hours from 4am on Wednesday and for four days from April 20, hitting the London Marathon on April 22.