Chapter 05 of 5
The Brain in the Shaft
Why elevators skip you, how dispatch systems think, and what comes next.
- The Puzzle
Which Car?
In a bank of elevators, which car should answer your call? There's no perfect answer.
- The Old Way
The Operator's Judgment
Human operators used judgment about who got on and when to skip a floor.
- Simple Rule
Collective Control
A classic rule: a car keeps going in one direction, stopping at every requested floor on the way, then reverses.
17 more cards in this chapter
Could you answer this?
What does a destination dispatch elevator ask you to do?
🛗 Who Stops the Elevator?
- 01A Lift Without a NetWhy nobody trusted a lift, and the brake idea that fixed it.
- 02All Safe, GentlemenThe stunt that sold the elevator, and the first lift in a shop.
- 03The Invisible BrakingCounterweights, governors and wedges: the safety systems you never see.
- 04Up and UpHow safe elevators raised skylines and flipped the value of the top floor.
- 05The Brain in the ShaftWhy elevators skip you, how dispatch systems think, and what comes next.