One-fifth of rail passengers buy wrong tickets from machinespublished at 12:53 Greenwich Mean Time 10 February 2017
Rail ticket machines cause so much confusion that one-fifth of passengers who use them buy the wrong ticket, according to the rail regulator.
While 7% of people underpay and could be fined, 13% are paying too much.
The Office of Rail and Road (ORR) wants train companies to refund passengers who accidently buy tickets which are too expensive for their journey.
Train operators say plans to simplify fares will help them to give clearer information on ticket machines.