Which city's transportation system first introduced contactless payment cards that revolutionized transit fare collection in the early 2000s?

The transportation industry has been transformed by digital payment technologies. From subway tokens to mobile apps, the way we pay for transit has evolved dramatically. This poll tests your knowledge about a groundbreaking contactless payment innovation that changed how millions of commuters access public transportation daily. Do you know which major transit system pioneered this technology that has since been adopted worldwide?

This is a live public trivia poll on AIPolls.Net. Vote and see real-time results.

London (Oyster card)
Tokyo (Suica card)
Hong Kong (Octopus card)
New York City (MetroCard)