Abstract:The key features of urban air traffic and its supporting infrastructures oriented to the electric vertical takeoff and landing (eVTOL) are systematically analyzed. Firstly, the technical characteristics and the performance advantages and disadvantages of the three mainstream eVTOL configurations, namely multi-rotor, compound rotor and tiltrotor, are sorted out. Compared with the traditional low-altitude transportation vehicles, the advanced nature and applicability of eVTOL in structural design are highlighted. On this basis, combined with the design range, speed and takeoff weight and other parameters of various eVTOL, its distribution characteristics in the application scenarios of the different cities are clarified, such as short sightseeing, intercity commuting and emergency rescue. Furthermore, by comparing with urban ground and air transportation methods, the significant advantages of eVTOL transportation in terms of cruise speed, operating costs and noise control are revealed. Finally, the focus is on discussing the characteristics of urban infrastructure that are compatible with the operation of eVTOL, which covers the type classification, layout and site selection, functional area configuration of vertical takeoff and landing fields, and the airway safety guarantee system, aiming to provide the theoretical references and practical guidance for the integration of eVTOL into the future urban three-dimensional transportation network.