Which major transit system was the first to widely implement contactless payment card technology allowing passengers to tap credit/debit cards directly on fare readers without needing a separate transit card?

The transportation industry has undergone significant technological advancements in payment systems over the years. From paper tickets to mobile apps, the way passengers pay for rides has transformed dramatically. This poll tests your knowledge about a major point-of-sale innovation that revolutionized public transit fare collection systems in recent years. Can you identify when this game-changing technology first gained widespread adoption?

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London's Transport for London (TfL)
New York City's MTA
Tokyo's JR East
Hong Kong's MTR