The advantage they pointed out in the article was energy savings and time in the elevator. Very large buildings have express elevators that won't stop on every

The advantage they pointed out in the article was energy savings and time in the elevator. Very large buildings have express elevators that won't stop on every floor, or the poor sap on floor 52 would never get there. This is like making every elevator an express one by batching up the stops. As for the energy savings... not really clear on that. Maybe I just misunderstood.