Pieces include a 22m mural called Journey Across Time, featuring moving components that change as passengers pass by on the moving walkway, and another mural that spans 3.5km.
George Best Belfast City Airport said about 9, 000 passengers would pass through its doors on Friday.
Gatwick Airport said the new rules were slightly delaying passengers as pass through security checks.
All of which makes it difficult to pass on information to passengers.
Maximum delays of more than three hours were predicted for some flights to Atlanta's Hartsfield-Jackson International Airport, the world's busiest airport as measured by the number of passengers who pass through it.
After then checking in as normal at the same kiosk, passengers can pass through a miSense automatic security gate by placing their finger on a scanner and inserting their boarding card into the reader.
Passengers will continue to pass through machines that display a generic outline of the human body, raising fewer privacy concerns.
Most passengers will continue to pass through just metal detectors.
The new technology allows Air France passengers to skip the boarding-pass stage of the airport processes.
The International Air Transport Association, a worldwide travel industry group, is working on measures that will allow passengers to get their boarding passes using fingerprint or retinal scans and then pass through the checkpoint.
Passengers can order stuff whenever they want instead of waiting for flight attendants to make a pass through the cabin.
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His company, Verified Identity Pass , a screening service that's created an express lane at airport security posts for pre-screened passengers deemed safe by the government, has effectively been cleared to take off past its initial successful test run in Orlando, Fla.
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