Uber’s “flying taxis” might be only five years away, but first the supporting real estate has to be addressed. Concepts proposed for the Skyports — part “The Jetsons” and part tiny airport — are ambitious and conceptual, based on guidelines Uber offered to potential partners: a mega-Skyport on a small footprint capable of 1,000 takeoffs and landings in an hour, where thousands of passengers could be shuttled between air, transit and car with minimal noise and maximum efficiency.

Uber Elevate has chosen Dallas, Los Angeles and Dubai as the potential test sites, with the goal of a first launch by 2023. Uber would provide each four-seat flying taxi — an electric-powered eight-rotor drone known as an electric Vertical Takeoff and Landing, or eVTOL.