More than 3.2 million journeys have been made on London's transport network by passengers tapping in and out with a mobile device, new figures reveal.
While the 3.2 million figure represents just 3.5% of all contactless journey on London's public transport system, the figure is expected to climb steadily, with 7000 new devices being detected each week.
"This (number) is predicted to further increase throughout 2016 as more devices come onto the market and more people adopt them and other contactless technologies such as watches and wristbands with Near Field Communication (NFC) capabilities," says Transport for London.
Contactless payments have been accepted on London Buses since December 2012, with the technology expanded to cover Tube, tram, DLR, London Overground, and most National Rail services in London in September 2014.
In total more than 300 million journeys have been made using the technology since its launch in 2012, with more than a million journeys now made each day using contactless
TfL data shows early 25,000 new cards are used on the network every day, with 27% of all pay as you go journeys on Tube and rail services now made using contactless.
The success of the scheme has led to calls for the technology to be expanded nationwide, with the UK Cards Association working with transport operators across the country to implement contactless payments on local pay-as-you-go journeys, including single trips, such as a bus journey, or combined travel on more than one type of transport.
Janet Cooke, chief executive, London TravelWatch, says: "For some time, passengers in towns such as Epsom, Slough, and Sevenoaks have been calling for the benefits of Oyster and contactless payments to be extended to them. This should now be done without further delay."