Rail passengers will be hit as the price of train tickets rise by an average of 2.2%.
Regulated fares, which include season tickets, are going up by 2.5% while the average increase for all fares is 2.2%.
The rail industry said the increase is the lowest since 2010 but campaigners and trade unions argue the increases are continuing to outstrip the average rise in wages.
The Campaign for Better Transport said the cost of a Milton Keynes to London season ticket had risen by 23.5% - or £930 - since January 2010. The price of a 2015 ticket is £4,888.
The rises comes after weeks of disruption to rush-hour services. Over-running engineering work led to chaos last Saturday, with King's Cross, Finsbury Park and Paddington stations having to be closed and resulted in Network Rail chief executive Mark Carne announcing he would not be taking his annual performance-related bonus.
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