The RMT union said after months of discussion between management and the union
over pensions and benefits a "satisfactory conclusion" had not been
reached. Industrial action at the weekend also led to cancellation of major works on the
Northern Line which RMT said had "serious and widespread impact
across the system."
The ongoing pensions dispute concerns hundreds of staff working for Tube Lines. Union bosses say the pension and benefits are not as good as enjoyed by other TfL staff.
Jon Lamonte, chief executive of Tube Lines, believes this is incorrect and said: "Further industrial action on the Jubilee, Northern and
Piccadilly lines on this issue is completely unnecessary. Since becoming part of TfL all Tube Lines employees have kept their existing terms and conditions of employment."
RMT leader Bob Crow, countered this and said: "This dispute is about fairness and equality, nothing else. Tube
Lines is now a wholly owned subsidiary of TfL and there is simply no
excuse for refusing equal pension and (travel) pass rights."
Keep an eye on TfL's website before travelling on Friday morning if you use any of the lines that may be affected.
UPDATE - 22nd November 2012 - This strike has now been called off - see more on BBC