Lift installation and method of operating a lift installation

摘要

A lift installation with multiple lift cars operating in the same shaft, and a method of operating the installation are disclosed. A controller determines a suitable lift car for serving a destination call at a floor. In dependence on at least one operating parameter, a first lift car is moved either synchronously in time with a second lift car, or displaced in time relative to the second lift car but still within the time duration of the journey of the second lift car.