Which innovative payment system was first widely adopted by public transit agencies to allow passengers to tap and go using their existing credit/debit cards without needing a separate transit card?

Modern transportation services have evolved significantly in how they handle payments and enhance customer experience. From contactless payments on public transit to innovative subscription models for ridesharing, payment systems have become a critical component of the transportation industry's customer experience strategy. This poll tests your knowledge about a recent major innovation in transportation payment systems that has transformed how consumers interact with transit services.

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Open-loop payment systems
Blockchain transit tokens
Mobile QR code validation
Biometric fare collection