Daniel Moylan, deputy chairman of Transport for London, is also deputy leader of Kensington and Chelsea council. Ten residents' associations in the borough have written to the Mayor and to the council leader, Merrick Cockell, claiming Mr Moylan's roles have clashed, and that he must be made to choose between them.
The groups suggest that a plan to divert eight bus routes through Cromwell Place in South Kensington without consultation was "a TfL initiative apparently rubber-stamped" by the council.