Buildings ยท 1900s-present
Elevator Button
A tiny public interface for a vertical machine.
Why it matters
The elevator button turns a complicated dispatch system into one simple request: call the car or choose a floor.
How it works
A button closes an electrical circuit or triggers a digital input. The controller groups calls, assigns cars, and updates signals for riders.
Design notes
- Illuminated buttons are feedback, not decoration.
- Modern destination dispatch moves choice from inside the car to the lobby.
- Door-close buttons are infamous because their behavior varies by system and jurisdiction.
Timeline
- Early 1900s: electric control panels spread
- Late 1900s: microprocessor dispatch
- Today: touchscreens and destination systems