## 1 Introduction  
Currently, many companies such as airplane manufacturers, automobile manufacturers, and information technology companies are developing urban air mobility (UAM) as a way to solve the problem of saturation of ground transportation in major cities in the world. By operating battery-powered electric vertical takeoff and landing (eVTOL) vehicles in the urban area, UAM is expected to be widely used in the near future for not only reducing commuting time but also solving environmental problems such as emissions and noise. Therefore, along with the development of eVTOL aircraft, it is necessary to study the design criteria of vertiports to accommodate and operate eVTOL aircraft and to evaluate passenger-carrying capacities.  
The National Aeronautics and Space Administration (NASA) analyzed the characteristics of locations for operating VTOL aircraft along with available spaces such as floating barges and highway interchanges, considering private land, wind, takeoff distance, and noise for the Silicon Valley region [1]. At the 2018 Uber Elevate Summit, various designs of vertiport shapes were presented by several companies, including architecture firms such as Gannett Fleming and Humphreys & Partners Architects [2; 3; 4; 5]. In addition, in 2019, BOKA Powell selected two locations, downtown Dallas and Frisco in Texas, and presented \"Uber Air 2023 Skyport Mobility Hub Concepts\" and offered a specific design that accommodates electric vehicles and electric scooter charging stations [6].  
[PERSON] et al. [7] reviewed the existing heliports to determine the size and arrangement of the vertiport components and modeled the vertiport using the infrastructure variables (TLOF pads, gates, and staging stands) and operating parameters (time for taxiing, turnaround, arrival and departure, pre-staged aircrafts, and operating policy). Gurobi 8.0.1 solver and Python 3.6.6 were used to analyze the formulated model using integer programming. Different from the reference [7] method, which calculates all possible cases for a specific time, in that study, a method that determines the acceptable maximum range by plotting an outer line only was implemented using the MATLAB [8]. [PERSON] et al. [9] defined spacing constraints as prescribed for general aviation visual flight rules (VFR) helictors in [10] and defined perimeter design, central design, and disconnected design for different square spaces and then compared utilization rates. [PERSON] et al. [11] analyzed the UAM demand scenario where external entities (passengers) use a vertiport reservation system in the near future. Scenarios were classified as a simulation model and a queuing model, and the vertiport for various environments was compared and analyzed by applying the first-come and first-served (FCFS) scheduling algorithms. [PERSON] et al. [12] presented a method based on integer programming, which created a vertiport design automatically for a given area. In that study, more than 25 million combinations of the different parameters were obtained and analyzed. [PERSON] et al. [13] defined an exemplary vertidrome concept, namely, a linear independent expandable drive-through (LIEDT) topology, as well as operating and traffic rules for arriving and departing vehicles.  
In this study, the Hyundai S-A1 eVTOL aircraft was applied to the vertiport design regulations to study the location-based vertiport capacity analysis and design criteria. Moreover, since UAM mainly pertain to urban areas where a vertiport may be installed in a limited space, vertiport components were laid out according to the actual space, and the capacity of each layout was compared using the MATLAB program. Finally, we chose the most efficient arrangement for the space and calculated the number of passengers per hour.