The ride quality of the elevator is affected by the accuracy and precision of the track installation. The building structure of the connecting rail must also be accurately mounted and have nearly perfect verticality. Elevator Supplier typically require the liftway to change from a vertical direction by no more than 1 inch. When the moving cab "pushes" the air, the car's jitter also affects the ride quality of the elevator.

The beam load is distributed around the hoistway

Elevator contractors prefer a simple beam connection with beams that are angled or recessed. However, the structural engineer is responsible for the design of the connection. The beam can be positioned to achieve an effective connection. The beam can be located below the floor of the machine room and can support or counter the structural frame at a convenient height. The elevator contractor can provide a barrier to position the hoist at the appropriate height associated with the floor of the machine room.

Center separation design uses a faster on/off cycle

The door panel of the center separation device travels only at the midpoint of the hoistway opening, while the door of the side slid inlet must travel the entire distance from one side of the hoistway opening to the other. This saves boarding time because the quick opening of the door can initiate the loading and unloading process faster. In addition, once the boarding is completed, the quick closing of the door allows the elevator platform to proceed faster.

Unlike new construction projects, elevator modernization is rarely designed by architects or engineers who design the entire building. This means that elevator modernization often causes problems for the owner during the project, sometimes after the elevator part of the project is completed. This is partly because the elevator code requires more training than a typical elevator contractor.