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Elevator Expert on How to Move 10k People Up a 118-Floor Skyscraper [video]

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Re: Elevator Expert on How to Move 10k People Up a 118-Floor Skyscraper [video]

#11

Post by cedws »

koolba wrote: post #7
cedws wrote: post #3

Interesting video. I've often wondered what the most optimal elevator algorithm is. Imagine a scenario where a single person calls an elevator to go down, and just as they get in, a group of five people on the floor above also call the elevator to go down. We all know that the elevator would go straight down and then come back up for the people who called the elevator too late. The elevator could actually save time b…

> Could one shaft serve a lower set of floors while another shaft serves a higher set of floors to minimise 'wasted' time travelling up and down? “Shafted” is how the guy already in the elevator would describe the elevator going up to get the group when he wants to go down.

:) maybe. The guy already in the elevator would surely benefit from this one day too.

Re: Elevator Expert on How to Move 10k People Up a 118-Floor Skyscraper [video]

#13

Post by aaron695 »

cedws wrote: post #3

Interesting video. I've often wondered what the most optimal elevator algorithm is. Imagine a scenario where a single person calls an elevator to go down, and just as they get in, a group of five people on the floor above also call the elevator to go down. We all know that the elevator would go straight down and then come back up for the people who called the elevator too late. The elevator could actually save time b…

[dead]

Re: Elevator Expert on How to Move 10k People Up a 118-Floor Skyscraper [video]

#15

Post by V__ »

cedws wrote: post #3

Interesting video. I've often wondered what the most optimal elevator algorithm is. Imagine a scenario where a single person calls an elevator to go down, and just as they get in, a group of five people on the floor above also call the elevator to go down. We all know that the elevator would go straight down and then come back up for the people who called the elevator too late. The elevator could actually save time b…

Have you played Elevator Saga? You could try it and them compare the stats.

[1] https://play.elevatorsaga.com/

Re: Elevator Expert on How to Move 10k People Up a 118-Floor Skyscraper [video]

#16

Post by flir »

cedws wrote: post #3

Interesting video. I've often wondered what the most optimal elevator algorithm is. Imagine a scenario where a single person calls an elevator to go down, and just as they get in, a group of five people on the floor above also call the elevator to go down. We all know that the elevator would go straight down and then come back up for the people who called the elevator too late. The elevator could actually save time b…

You may enjoy this. I lose a couple of days to it every time I remember it: https://play.elevatorsaga.com/

Re: Elevator Expert on How to Move 10k People Up a 118-Floor Skyscraper [video]

#17

Post by flir »

ukuina wrote: post #6
toomuchtodo wrote: post #5

Earlier quoted context omitted.

https://en.wikipedia.org/wiki/Paternoster_lift

Interesting idea but comically unsafe.

Perfectly safe. As long as you get off at the last floor of course, lest you end up in The Backrooms.

Re: Elevator Expert on How to Move 10k People Up a 118-Floor Skyscraper [video]

#18

Post by brazzy »

cedws wrote: post #3

Interesting video. I've often wondered what the most optimal elevator algorithm is. Imagine a scenario where a single person calls an elevator to go down, and just as they get in, a group of five people on the floor above also call the elevator to go down. We all know that the elevator would go straight down and then come back up for the people who called the elevator too late. The elevator could actually save time b…

> Could one shaft serve a lower set of floors while another shaft serves a higher set of floors to minimise 'wasted' time travelling up and down?

That's actually completely standard for very tall buildings, and of course the shafts that e.g. serve only the higher floors don't go all the way down, because the space used by elevators becomes an even bigger problem than the travel time as buildings get taller.

Another option to increase capacity is to have double-decker elevator cars that serve different floors.

Re: Elevator Expert on How to Move 10k People Up a 118-Floor Skyscraper [video]

#19

Post by zdragnar »

cedws wrote: post #3

Interesting video. I've often wondered what the most optimal elevator algorithm is. Imagine a scenario where a single person calls an elevator to go down, and just as they get in, a group of five people on the floor above also call the elevator to go down. We all know that the elevator would go straight down and then come back up for the people who called the elevator too late. The elevator could actually save time b…

What are you optimizing for? Median? Mean? 99th percentile?

Also, people will try to "beat" the algorithm, especially if they have to wait the same amount of time on a barely trafficked floor as people on the busy "hot" floor... kindof like how cars will zip back and forth in mild traffic jams trying to find the "faster" lane.

It's probably better to just have a simpler, predictable system.

Re: Elevator Expert on How to Move 10k People Up a 118-Floor Skyscraper [video]

#20

Post by cedws »

flir wrote: post #16
cedws wrote: post #3

Interesting video. I've often wondered what the most optimal elevator algorithm is. Imagine a scenario where a single person calls an elevator to go down, and just as they get in, a group of five people on the floor above also call the elevator to go down. We all know that the elevator would go straight down and then come back up for the people who called the elevator too late. The elevator could actually save time b…

You may enjoy this. I lose a couple of days to it every time I remember it: https://play.elevatorsaga.com/

This is amazing, thanks. If Zachtronics released a game like this I'd never be seen again.
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