r/Urbanism • u/Possible-Balance-932 • 15h ago
The Process of Adaptation to High Density in Korean Cities (in Contrast to Britain)
Image source: https://www.reddit.com/r/Urbanism/comments/1xgvrr5/how_much_density_does_the_average_person/
Every time I look at Korea, it seems—despite its large population—as if there are remarkably few people or vehicles around. Seoul, in particular, is so sparsely in appearance that it’s hard to believe it actually has such a high population density.
The chart above reveals a rather ironic reality.
So, why is this the case? The reasons are quite complex.
Take the United Kingdom as an example. The common complaint among the British—that the country is "overpopulated"—is directly linked to the intense level of crowding experienced on weekends.
Foreigners, travelers, and those who analyze statistical data often share a common observation: the disparity in perceived crowding between weekdays and weekends is far more extreme in the UK than in many other countries.
While it is not the case that the British do nothing during the week and save all their activity for the weekend, there is a notably sharp divide: weekdays are typically defined by home-centered routines and frugal spending, whereas weekends are characterized by a concentrated surge in dining out, leisure activities, and experiential consumption.
However, the debate over overpopulation in the UK is less about the simple ratio of population to land area, and more a consequence of "poor infrastructure combined with a socio-structural bottleneck"—where people and activities converge on specific places at specific times.
The overall population density of Great Britain is approximately 275 people per square kilometer—one of the highest in Europe, trailing only the Netherlands and Belgium.
If we look specifically at England—home to 84% of the British population—the density reaches about 434 people per square kilometer, a figure significantly higher than that of most major nations on the European continent.
Nevertheless, compared to places like South Korea or Singapore, the UK is not so densely packed that its population-to-land-area ratio reaches a physical breaking point. In the United Kingdom, the root cause of many issues is a "bottleneck" effect, stemming from factors such as aging infrastructure and a bifurcated approach to land use.
When the British people complain that there are "too many people," what they are actually expressing is frustration with an imbalance: the failure to modernize urban infrastructure and social structures to accommodate a growing population.
In short, these issues create severe physical bottlenecks in everyday life.
What about South Korea?
At first glance, Seoul may appear to have a population similar to that of London. However, this comparison is limited by how administrative boundaries are defined.
If we look at the population within a 30-kilometer radius, Seoul’s figure exceeds 21 million, whereas London’s is only around 11 million.
In reality, the scale of Seoul’s population is significantly larger.
Why, then, does this difference manifest the way it does? For one, Seoul absorbs tens of millions of people—its massive "floating population"—by utilizing space in three dimensions: through vast underground shopping complexes connected to subway stations, towering mixed-use shopping malls, and commercial spaces stacked floor-by-floor within buildings.
London, by contrast, is characterized by numerous protected zones that restrict high-rise development, consisting primarily of historic, three- to four-story buildings. Its underground spaces are also extremely cramped.
Furthermore, unlike the Seoul Metro—which is designed with generous spatial dimensions—London’s "Tube" network, built in the 19th century, features narrow platforms and low ceilings, resulting in a very limited capacity for passengers. In other words, the disparity arises because, despite the UK enjoying far more favorable physical conditions—such as a higher proportion of flat land and a different pattern of population concentration—its urban systems and infrastructure are significantly less efficient than those of South Korea.
While South Korea manages to accommodate a massive population despite its challenging, rugged terrain, the UK—blessed with much better geographical conditions—nonetheless suffers from a persistent sense of overpopulation.
Interestingly, when British people—who often perceive their own country as overpopulated—learn about the data for South Korea and experience the country firsthand, they come to realize that the UK’s struggles are not simply a matter of having "too many people."
In fact, British individuals who familiarize themselves with the data on South Korea and visit the country—as well as experts in urban planning and economics—invariably arrive at this profound realization.
When presented with objective statistics, British visitors to South Korea are often initially skeptical or resistant to the facts: that South Korea has a higher population density than England; that the Seoul metropolitan area—home to roughly 26 million people, or 50% of the national population—exhibits a level of concentration that dwarfs that of Greater London; and that, given that 60–70% of South Korea’s land is mountainous, the density in the areas actually habitable for humans is vastly higher than in the UK.
Because the notion that "our country is too crowded" is treated almost as an established truth in the UK—appearing frequently in the media and everyday conversation—these visitors are left to wonder how a nation with far more demanding physical conditions could possibly function this way.
Once British visitors spend a weekend in South Korea and navigate the country using its public transportation, their illusions about their own nation are shattered, and they come to tangibly grasp the stark gap in the efficiency of urban systems between the two countries. Ultimately, one comes to realize that the issue is not overpopulation, but rather a matter of systems and infrastructure.
This is evident not only in physical bottlenecks but also in the speed at which public services are delivered. In the UK, people might wait months to see a doctor—often blaming the collapse of the National Health Service (NHS) on "too many people"—whereas in South Korea, it is possible to receive medical consultations or undergo tests on the very same day. This clearly demonstrates that the core problem is not the size of the population, but the processing capacity and efficiency of the system.


