A tower lift includes a rail module extending in a vertical direction, a plurality of carriage modules that are movable along the rail module, each carriage module having a carriage that carries an object, and an interference avoidance module that avoids travel interference between the carriage modules that move along the rail module.

A method of operating a shuttle elevator group including: detecting an arrival of an elevator car at a landing; determining a time since a previous elevator car departed the landing; determining a fullness percentage of the elevator car; determining an estimated time until a next elevator car arrives at the landing; and determining when the elevator car departs the landing based upon at least one of the fullness percentage of the elevator car, the time since the previous elevator car departed the landing, and the estimated time until the next elevator car arrives at the landing.

A shuttle elevator loading system includes a plurality of shuttle elevators configured to service a building lobby. At least one sensor is configured to detect at least one passenger and at least one display unit is located at a display zone of the lobby. An elevator system controller is in signal communication with the at least one sensor and the at least one display unit. The elevator system controller determines a number of allocated passengers corresponding to each shuttle elevator and generates assignment information that directs a non-allocated passenger to an available shuttle elevator.