Actually retrofitting the top level of parking garages for VTOL (Vertical Takeoff & Landing) vehicles.
Parking garages converted for air taxi takeoff | ZDNet
United Airlines has also partnered with Archer.
Parking garages converted for air taxi takeoff | ZDNet
That point is underlined in an ambitious new agreement between Archer, a leading urban air mobility company based in California, and the operator of thousands of parking garages in an expansive network that covers more than 70% of the U.S. Archer and REEF will work together to retrofit the top floor of parking garages in dense urban areas in order to accommodate Archer's all-electric vertical takeoff and landing (VTOL) vehicle.
United Airlines has also partnered with Archer.