Which contactless payment system was first widely implemented in public transportation, revolutionizing how commuters pay for transit in major cities?

The transportation industry has seen significant evolution in how customers pay for services - from traditional cash transactions to sophisticated contactless systems. Modern transit payment solutions have transformed how people access buses, trains, rideshares, and other transportation options. This poll tests your knowledge about a revolutionary retail payment system that changed urban transit experiences worldwide.

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London's Oyster card system (launched 2003)
Hong Kong's Octopus card system (launched 1997)
New York's MetroCard system (launched 1993)
Tokyo's Suica card system (launched 2001)