Tube staff have voted for industrial action over a plan to move control centre employees from Piccadilly to Hammersmith.
The RMT union claimed its staff have voted overwhelmingly for strike action and action short of a strike, citing disagreements over jobs and conditions.
Among their disputes are staffing cuts for Service Control on the Jubilee Line and a disagreement on pay.
TfL pointed out the changes were not due until 2017.
via BBC News