Commuters in the borough could face significantly higher Oyster fares from next year when a cap on off-peak charging will be raised.

Residents who travel regularly into central London off-peak will be hit by a higher all-day rate that the Mayor of London’s office said was designed “to address the needs of flexible and part-time workers”.

Some whose journeys were capped at £8.50 will see that figure rise to £11.70.

A one-day travelcard including zones one to six will increase by more than one-third from £8.90 to £12 – and by two-thirds for children, from £3.60 to £6.

Kingston and Surbiton MP Edward Davey raised fears of even more overcrowding due to the move.

He said: “It is going to potentially make crowding at the peak even worse.

“This is anti-outer London. It will make no difference whether you travel after 9.30am or before.”

Liberal Democrat London Assembly leader Caroline Pidgeon said: “The devil is always in the detail when it comes to the Mayor’s fare proposals.

“Hidden away in the Mayor’s fare package is the harsh fact people from outer London, such as Uxbridge and King-ston, and who only start their journey after 9.30am, will from the New Year face significantly higher fares when using Oyster pay-as-you-go.”

Conservative London Assembly member Tony Arbour said: “Overall, more Kingston residents will gain than lose under the changes.

“The removal of the peak cap will mean part time workers can travel when it suits them rather than waiting until 9.30am.

“I should have preferred a significantly lower anytime cap, however.”

Mr Johnson said: “By overhauling our fares structure we will put money back into the pockets of hundreds of thousands of hardworking people.”

Transport for London’s director of customer experience Shashi Verma told the Eve-ning Standard: “Off- peak caps have been removed and some of the caps are a bit higher.

“A cap is a cap it is not a fare and if you increase the cap it doesn’t mean people end up paying the value of the higher cap.

In any major reorganisation of this kind, it always leaves winners and losers.”

She said that close to 600,000 people would benefit, while the “real losers” would be 5,000 customers.