Contactless cards are an increasingly popular method of travelling on the London Underground, according to figures from Transport for London.
It said that since 2012, when contactless cards were first accepted for travel on the Tube, there have been one billion journeys on the transit network using the technology.
Transport for London said that 40% of all pay-as-you-go journeys are now made using contactless cards. This is up from 25% in early 2016.
Using contactless to travel in London has also helped the adoption of such cards in the general population. Figures for Barclaycard found that half of all in-store card payments up to £30 across the UK are now made using contactless technology.
Payment via mobile devices, such as Apple Pay and Android Pay are also seeing an uptick. 31 million journeys have been made by commuters using smartphones over the past year.
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