The biggest rise has come in the form of payments made on buses in central London since the launch of the technology late last year.

TfL's director of customer experience, Shashi Verma, said, "We've now seen over 2.5 million contactless transactions worth £3.5m across the bus network since the technology was introduced in December, and the figures show that more and more passengers are choosing to pay for their journeys with their contactless card,"

Verma continued, "We've seen weekly transaction rates continue to grow across all the bus routes with particular popularity on the central London bus routes. The number of people using their contactless payment card has continued to rise each week."

Quote courtesy of www.v3.co.uk.