Why the Elevator Close Button Usually Does Nothing

You step into an elevator, press the floor button, and then smash the close door button. You want the doors to shut immediately. Yet, they stay open. Why? You might think the button is broken. In most cases, it is not broken. It was never connected.

The American with Disabilities Act changed elevator design in 1990. New elevators needed enough time for people using wheelchairs, crutches, or strollers to enter safely. Elevator companies programmed doors to stay open for a specific duration—usually three to seven seconds. The close button often only works for firefighters or building maintenance using a special key.

Why keep the button if it does nothing? The answer is psychology. Humans hate waiting, but we hate waiting when we feel out of control even more. The close button acts as a placebo. Giving passengers a button to press lowers stress and reduces complaints, even though the computer ignores the signal.

Engineers call these "placebo buttons." Traffic lights have pedestrian buttons that often do not change the light timing. Thermostats in office buildings sometimes let workers turn a dial that connects to nothing. Designers found that people feel happier when they can take an action, real or fake.

Next time your elevator refuses to rush, remember the truth. The machine is ignoring you for safety and keeping you calm.

Do you think placebo buttons are helpful or dishonest?