‘Driver-only operation’ disrupts schedule, with RMT union warning of industrial action Sign up to Simon Calder’s free travel email for expert advice and money-saving discounts Get Simon Calder’s Travel email Get Simon Calder’s Travel email Email * SIGN UP I would like to be emailed about offers, events and updates from The Independent. Read our Privacy notice A key intercity link in the East West Rail project, between Oxford and Milton Keynes Central, will not see passenger trains this year as