London Underground services may be disrupted later this month, after RMT drivers voted in favour of a strike in protest at Transport for London proposals to introduce a four day working week, although TfL said the shorter week would be optional.

Former Railtrack chief executive Gerald Corbett has warned that the government’s plans for Great British Railways will leave the industry’s ‘directing mind’ at risk of interference by ministers. Mr Corbett was speaking as he launched his new book ‘When something happens ? Inside Railtrack: a CEO shares his story for the first time’, in which he recollects his years at Railtrack.