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Where did they have "1.2 million people per square kilometer"? https://en.wikipedia.org/wiki/List_of_world_cities_by_population_density https://en.wikipedia.or

by bloak 3y ago

Where did they have "1.2 million people per square kilometer"? https://en.wikipedia.org/wiki/List_of_world_cities_by_population_density https://en.wikipedia.org/wiki/List_of_world_cities_by_popula... only goes up to about 80 thousand ... and the city with the highest population density in that list is one I must admit I'd never heard of, so there's a pub trivia question, perhaps.

deleted 3y ago
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dublinben 3y ago
It's hardly a shining example of livability, but the former Kowloon Walled City purportedly had a population density of over 1.9 million/km2. [0] More realistically, we can see examples of nice residential neighborhoods in Washington DC ranging from 30,000-100,000+/km2. [1] [0] https://en.wikipedia.org/wiki/Kowloon_Walled_City https://en.wikipedia.org/wiki/Kowloon_Walled_City [1] https://ggwash.org/view/42469/what-do-80000-people-in-a-square-mile-look-like-depends-on-where-you-put-them https://ggwash.org/view/42469/what-do-80000-people-in-a-squa...
- ahoy 3y ago
  And DC has wide streets & building height limits!
- trinovantes 3y ago
  According to this youtube video [1], some city blocks in Manhatten can reach up to 280k/km2 [1] https://youtu.be/y3XoUBzfXps?t=453 https://youtu.be/y3XoUBzfXps?t=453
jcranmer 3y ago
Kowloon Walled City made it to 1.9 million people per km². Your list of cities misses this because it's comparing entire metropolitan regions (not clear how this is precisely defined), as opposed to neighborhood-level densities, which is where you can get the hundreds of thousands or millions of people per km².
- duped 3y ago
  It housed 33,000 people. While on paper that's extremely dense it's not necessarily scalable - and kind of provably so, since they tore it down and evacuated everyone who lived there. What would the sewage infrastructure look like for a 1km square with almost two million people in it? How about the ventilation? Police and fire? It's not really tenable.
  - tormeh 3y ago
    Tore it down against the will of the people living there. And the building height was constrained by an overhead airport approach. KWC could have been even denser. I don't think going full KWC density is a good idea, but comparisons to it serves as a rough measure of how far from "full" a city really is. And I think it's important to remind ourselves of that from time to time. SF, to pick an example near and dear to HN readers, is not full. All residents of the Bay Area could fit between Market Street and Van Ness Avenue with lots of room to spare.

by bloak 3y ago

deleted 3y ago

[deleted]

dublinben 3y ago

It's hardly a shining example of livability, but the former Kowloon Walled City purportedly had a population density of over 1.9 million/km2. [0] More realistically, we can see examples of nice residential neighborhoods in Washington DC ranging from 30,000-100,000+/km2. [1] [0] https://en.wikipedia.org/wiki/Kowloon_Walled_City https://en.wikipedia.org/wiki/Kowloon_Walled_City [1] https://ggwash.org/view/42469/what-do-80000-people-in-a-square-mile-look-like-depends-on-where-you-put-them https://ggwash.org/view/42469/what-do-80000-people-in-a-squa...

ahoy 3y ago
And DC has wide streets & building height limits!
trinovantes 3y ago
According to this youtube video [1], some city blocks in Manhatten can reach up to 280k/km2 [1] https://youtu.be/y3XoUBzfXps?t=453 https://youtu.be/y3XoUBzfXps?t=453

jcranmer 3y ago

Kowloon Walled City made it to 1.9 million people per km². Your list of cities misses this because it's comparing entire metropolitan regions (not clear how this is precisely defined), as opposed to neighborhood-level densities, which is where you can get the hundreds of thousands or millions of people per km².

duped 3y ago
It housed 33,000 people. While on paper that's extremely dense it's not necessarily scalable - and kind of provably so, since they tore it down and evacuated everyone who lived there. What would the sewage infrastructure look like for a 1km square with almost two million people in it? How about the ventilation? Police and fire? It's not really tenable.
- tormeh 3y ago
  Tore it down against the will of the people living there. And the building height was constrained by an overhead airport approach. KWC could have been even denser. I don't think going full KWC density is a good idea, but comparisons to it serves as a rough measure of how far from "full" a city really is. And I think it's important to remind ourselves of that from time to time. SF, to pick an example near and dear to HN readers, is not full. All residents of the Bay Area could fit between Market Street and Van Ness Avenue with lots of room to spare.