Which retail innovation has been credited with increasing average passenger spending by over 30% at major international airports since 2015?

Modern transportation hubs are evolving beyond simple transit points into comprehensive retail environments. From airports to train stations, mobility hubs are becoming destinations in themselves with innovative retail concepts. This trivia question tests your knowledge about one of the most significant retail innovations in transportation spaces that's reshaping how travelers shop and interact with these environments.

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Walk-through duty-free pathways that all passengers must navigate after security
Integrated e-commerce platforms allowing travelers to shop in-transit and collect purchases upon arrival
Sense of Place retail design that showcases local brands and cultural experiences unique to each location
Automated retail pods with facial recognition payment systems requiring no human interaction