Elevator system accommodating elevator cars having different sizes

An elevator system, comprising:

• a plurality of elevator cars, the plurality of elevator cars including a plurality of first cars and a second car, wherein the plurality of first cars and the second car are configured to run together within one elevator shaft such that the plurality of first cars and the second car are each configured to move vertically through at least a same vertical shaft part of the one elevator shaft, wherein the second car differs from each first car of the plurality of first cars based on the second car having a different size than each first car of the plurality of first cars, such that the second car has a larger base area than each first car of the plurality of first cars;
• and
• an elevator control, the elevator control including a call allocation control, the call allocation control including
• a first part connected to at least one call input device configured to allocate the plurality of first cars, and
• a second part connected to at least one call issuing means for call allocation of the second car,
• wherein the first part and the second part of the call allocation control are configured to work independently of each other,
• wherein
• the one elevator shaft includes at least two vertical elevator shaft parts that are
• connected by an upper horizontal transfer passage, and
• connected by a lower horizontal transfer passage, and
• the plurality of first cars and the second car are configured to run together simultaneously in a multi-car arrangement in a closed loop through the at least two vertical elevator shaft parts, the upper horizontal transfer passage, and the lower horizontal transfer passage of the one elevator shaft.