Other positions
Aslef, which represents many other drivers on the network, supports the move to a four-day week on a voluntary basis.
Finn Brennan, Aslef’s full-time organiser on London Underground, said: “We are surprised that the RMT has, once again, decided to take strike action to try to prevent Underground drivers moving to a four-day week on a voluntary basis.
“The voluntary four-day week gives Tube train drivers an extra 35 days off every year with rosters based on a 34-hour week in return for some changes to working conditions and moving to electronic, rather than paper-based, systems for booking on for duty.
“We are in discussions with Transport for London about how the final details of this will work in practice.
“Management have agreed that anyone who wants to keep working a five-day week will be able to do so without suffering any detriment, and we will be holding them to that.
“A strike designed to stop people having the choice of a shorter working week and more time off is a strange choice to make.”
London Underground said drivers can now choose to remain on a five-day week with a guarantee of remaining at the same depot. Nick Dent, director of customer operations for London Underground, said: “This will give our colleagues a real, meaningful choice on their working pattern without having to change where they work. This will also mean less time at work for Tube drivers, while delivering a more efficient, reliable Tube service for our customers.”