Next year's increases are based upon the July inflation figure.
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http://www.bbc.co.uk/news/business-33971890
The UK's inflation rate turned positive in July, with the Consumer Prices Index measure rising to 0.1% from June's 0%.
The Retail Prices Index measure of inflation was unchanged at 1% - the figure that will be used to calculate rail fare increases next year.
Also on the BBC website:
http://www.bbc.co.uk/news/business-33968318
Rail fares have risen nearly three times faster than wages over the past five years, new analysis suggests.
Regulated fare prices jumped 25% between 2010 and 2015, while average pay rose 9% over the same period, according to a study by the TUC.
Rail unions are campaigning for train lines to be run by the public sector, which they say will cut prices.
The report comes ahead of inflation data, which will be used to calculate fare rises for next year.
The government has already announced that regulated rail fares in England will rise by no more than inflation for this parliament.
Regulated fares cover about half of all tickets sold including season tickets and day returns.
A restriction limiting increases in these fares to RPI (retail prices index) inflation has been in place for the past two years under the coalition government.
Rail minister Claire Perry said the government's plans would put an end to "inflation-busting fare increases".
"Next year's fares will see some of the lowest increases for decades," she added.
But TUC general secretary Frances O'Grady said many commuters were "seriously out of pocket" due to the sharp rise in fares.
"If ministers really want to help hard-pressed commuters they need to return services to the public sector.
"It would allow much bigger savings to be passed onto passengers," she added.
Action for Rail - the TUC and rail union-led campaign pushing to bring the railways back into public ownership - claims £1.5bn could be saved over the next five years if routes, including the Northern, Transpennine and West Coast Main Line, were returned to the public sector.
A third of this would come from recouping the money private train firms pay in dividends to shareholders, according to Action for Rail which
commissioned the research from transport consultancy Transport for Quality of Life.
The analysis comes as a separate report from transport charity Campaign for Better Transport found the UK lags behind the rest of Europe on flexible rail tickets.
Currently season ticket holders only save if they use their tickets for five out of seven days, but it said shorter season tickets such as a four or three-day-a-week tickets would enable part-time commuters to also make savings.
"The UK government and train operators are dragging their feet, meaning many part-time workers are being priced off the railway," said the charity's public transport campaigner Martin Abrams.