Preview / Elevator

1. Have you ever experienced when you were waiting on the elevator unconsciously so you might have bumped to a person?
2. Have you ever feel dumbed, when you saw the elevator at the end of the hall, so you ran but you couldn't get in because it was full?

Elevator pictogram shows you how many people are there in it by lamp. So that you can reduce bumping to a person unconsciously when getting on and off. And if there's many people inside the elevator than you don't have to wait unnecessarily. So that you can save energy by just taking the stairs