Jubilee line
The Bakerloo still maintains its connection with the now Jubilee line tracks to Stanmore with tunnels linking from Northbound Bakerloo line platform nine to the Northbound Jubilee line toward St John's Wood and Southbound from Jubilee line platform seven to the Southbound Bakerloo line towards Regents Park. Although no passenger services operate over these sections they can be used for the transfer of engineering trains and was used to transfer Bakerloo line 1972 stock trains to and from Acton Works as part of a refurbishment programme.