Which AI-powered transportation innovation has been MOST widely implemented across public transit systems globally as of 2023?

The transportation industry is undergoing rapid transformation through artificial intelligence and data analytics. Companies are innovating to improve efficiency, safety, and customer experience. This poll tests your knowledge of how AI is being deployed in modern transportation systems and what innovations are genuinely making an impact versus those that remain primarily theoretical or promotional. Think about which technologies have moved beyond the hype cycle into practical implementation.

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Fully autonomous (Level 5) buses in regular service
Predictive maintenance systems that forecast vehicle failures before they occur
Dynamic pricing models that adjust fares based on real-time passenger emotions
Holographic passenger assistance agents at all major transit hubs