Which transportation hub first implemented large-scale, real-time programmable digital billboards that could change advertisements based on time of day and passenger demographics?

The transportation industry has always been at the forefront of outdoor advertising innovation. From traditional billboards along highways to sophisticated digital displays in transit hubs, advertising in transportation spaces has evolved dramatically. This trivia question explores a pivotal moment when digital technology transformed how advertisers reached commuters and travelers. Test your knowledge about this significant shift in transportation advertising history!

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Tokyo's Shibuya Station (2001)
London's Heathrow Airport (2003)
New York's Grand Central Terminal (2005)
Dubai International Airport (2008)