Articulated buses in London conductor. In August 2012, following the election of Boris Johnson as Mayor of London, it was announced the bendy buses would be withdrawn as their five-year operating contracts expired, starting from May 2009, and completed by 2013 (or 2015 depending on contract extensions). This was brought forward to December 2011. Research by London TravelWatch indicated that such a withdrawal could prove costly to TfL. A study conducted in September 2008 found that replacing articulated vehicles on routes 38, 507, and 521, whilst maintaining overall route capacity, would cost an additional £12.6m per annum, due to the additional vehicles necessitated. Additional
Deputy Mayor of London of Policy and Planning and Chief of Staff to Johnson until his death in office in 2011. In May 2011, Sir Edward Lister was then appointed as his successor. Richard Barnes ceased to be Deputy Mayor on 4 May 2012, when he lost his seat in the Assembly. Victoria Borwick succeeded him in the post. Borwick resigned in May 2015, following her election as Member of Parliament for Kensington, being succeeded by Roger Evans. The 2016 London mayoral election was won by Sadiq Khan, a member of the Labour Party. Following the election, he appointed Joanne McCartney Statutory Deputy Mayor,