


It’s technology reduced to nothing but two noises: a happy beep or an angry blip. The Oyster card has become synonymous with London transport, but, for most of us, it’s nothing more than another card in the wallet. The piece below, originally written in 2016, explains exactly what makes your little blue friend tick. Its been 15 years since Londoners first got their hands on the Oyster Card, the travel card that's now synonymous with wallets across the capital.
