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Seoul - Tokyo - Shanghai - Beijing : Some interesting comparisons


clock03-28-2010, 11:18 PM
Yorum: #1
Friends,



I was a bit shocked to read recently in the internet's free encyclopedia (wikipedia.org) that [quote] "the city of Seoul is the most populated city in the world that human civilization has yet known."



While this might be true, I was curious to find out more about the subject, and get a bit of data with comparisons with other very densily populated cities. During my quest on the topic, I came across this article on a japanese website:



http://www.iges.or.jp/en/ue/activity.../htm/far41.htm



In the article, all East Asian cities with a population of more than 10 million (Seoul, Tokyo, Shanghai, Beijing) are compared on the basis of population density, air quality, mode of transportation, energy consumption, number of vehicles, etc.



While the data is a bit dated with the most recent measurements being of 1998, it was an interesting read which I thought of sharing with you.



Fair enough, Seoul has the highest population density amongst those cities at close to 18000 persons per square km. That's about 46000 persons per square mile, or 25% more dense than in the central Tokyo area. I was a bit surprised to find that the population density of both Beijing and Shanghai is rather low at about 10-20 times less than the one of Seoul or Tokyo. They seem to follow a different development model over there..



Other interesting facts from the article: the air quality in Seoul has improved substantially through the 90s, not being considerably worse now than it is in the Tokyo ward area. What is interesting is that in the period 1985-1998, the air quality in Seoul has improved dramatically despite the number of passenger cars increasing from 300,000 to close to 2 million. That's almost a sevenfold increase!



Unbelievable Seoul!



I'd be much interested in a similar study comparing major east asian cities to european/american ones. If anyone knows of such studies, feel free to post them here.



cheers
clock07-07-2012, 06:08 PM
Yorum: #2
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