Strike action on London Underground has been suspended following significant progress made by RMT negotiators and London Underground Limited (LUL) representatives.
Planned strike action by over 3,000 members on LU stations on Wednesday 4 and Friday 6 will now not go ahead.
Following talks at ACAS, RMT has managed to save key jobs, prevent detrimental changes to rosters and secure protection of earnings around grading changes.
The significant progress means that key elements have been settled although there remains wider negotiations to be had in the job, pensions and working agreements dispute.
RMT general secretary Mick Lynch said: "I congratulate all our members who were prepared to take strike action and our negotiations team for securing this victory in our tube dispute.
"Without the unity and industrial power of our members, there is no way we would have been able to make the progress we have.
"We still remain in dispute over outstanding issues around pensions and working agreements and will continue to pursue a negotiated settlement."