In an Evening Standard article on Boris Johnson's failure to meet his election pledge to extend Tube opening hours on Friday and Saturday nights, Caroline Pidgeon comments:
Extending Tube opening hours across the whole underground on Friday and Saturday nights was one of the most high-profile promises that Boris Johnson made to Londoners to secure his election. Yet so far he has not added a minute to the opening hours of even one line.
Of course the Mayor claims he is still willing to consider extended opening hours after upgrade work has been completed on a line.
I can't think of a better place to start than the Jubilee Line where work should be completed this year after months of immense disruption for both users and businesses along the line.