a.k.a. Random Access System 

These systems park cars vertically and horizontally. They use mechanical means to move the cars efficiently within the parking structure. In many cases no attendants are required except to collect the money. This classification of mechanical parking systems is the most diverse. It contains many different types of systems that can be used in many different situations. There are systems specially designed for underground spaces, large horizontal spaces and vertical spaces. Some systems are designed for very fast entrance and exit times while other systems are designed for maximum space efficiency. There are many different types of systems. Getting the right system for a particular application and a specific area requires an understanding of what the different systems are capable of doing.