In the wake of another Spanish train tragedy, how do the statistics compare with road and air? 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 Spain has the finest high-speed rail network in Europe. But on Sunday evening, 18 January, dozens of passengers were killed when