Rail fare rises 'not fair', says Passenger Focus
2 January 2013 Last updated at 07:57 GMT
Rail fares for season ticket holders have increased by an average of 4.2% as the annual price hike, announced in August, comes into effect.
Anthony Smith, the chief executive of the consumer group Passenger Focus, says the industry must find a way to keep costs down.
He was speaking to Breakfast's Bill Turnbull.