Which city's transportation authority first implemented the contactless smart card payment system that became a model for transit systems worldwide?

Public transportation systems worldwide have embraced various technological innovations to improve customer experience. One significant advancement has been in payment methods, moving from physical tickets to digital solutions. This poll tests your knowledge about a pioneering contactless payment system that transformed urban transit and influenced retail payment technology globally. Can you identify which metropolitan transit authority first implemented this revolutionary system that has since become a standard model worldwide?

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

Hong Kong's Octopus card (1997)
London's Oyster card (2003)
Tokyo's Suica card (2001)
Singapore's EZ-Link card (2002)