Which transportation system was the first to implement a contactless smart card payment system for public transit?

Modern transportation systems rely heavily on efficient payment technologies to enhance passenger flow and experience. The integration of contactless payment systems has revolutionized how people access public transportation worldwide. This poll tests your knowledge about a significant milestone in transportation payment innovation that changed how millions of commuters interact with transit systems daily. Can you identify which major transportation network pioneered this technology?

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)