A vertical circular multi-level parking garage is a type of parking structure that features circular ramps for vehicles to ascend and descend between levels. These designs are often found in high-density urban areas where space is limited. They offer the advantage of compactness and the ability to stack vehicles vertically, maximizing the use of vertical space. The design considerations include the size of the vehicles, the number of parking spaces, the efficiency of the circulation system, and safety for users.