More passenger trains were on time in April than in any other month on record, according to the company that runs Britain’s rail network.

Network Rail said the figure for April – when 93.5 per cent of trains arrived on time – beat the best figures achieved under British Rail and followed the first full financial year when more than 90 per cent of trains arrived on time. But Virgin Trains, the long-distance train operator on the London-Glasgow West Coast main line, criticised the record on its route, where problems following the line’s £9bn ($14bn) upgrade continue to cause delays.