The Barclays Center has the smallest footprint of any major sports arena in the United States. There’s no street-level loading areas for deliveries or staging for concerts/events, so all trucks go into giant elevators to the loading docks below ground. Since there is so little space to maneuver, a giant steel turntable orientates the trucks to the proper loading docks and then back into the elevator while also allowing the truck to face the street on its way out.
via reddit
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