Context
The chart above shows the evolution of street network disconnectedness of the most connected and most disconnected cities in South Korea, for both new street additions (left) and the aggregate street network (right).
South Korea in context: Street-network sprawl of new development
The level of street-network sprawl in new development in South Korea followed a zig-zag trend with an overall increase. To get a sense of how street development has changed in South Korea, we can consider three of its most populous regions: Gyeonggi-do, Busan and Daegu. Disconnectivity in the most populous cities in South Korea follow the same country trend.
How do development practices in South Korea fare in comparison to others in the world? Most recently in 2006-2020, street construction in South Korea was the 30th-most disconnected out of the 179 countries in the world. Its position in the ranks since 1975 has fallen; relative to other countries in the world, street construction in South Korea has become more connected. South Korea ranked 6th in 1975, 29th in 1976-1990, 16th in 1991-2005 and 30th in 2006-2020.
The largest city in South Korea is Seoul, with a population of 21547100 people. Taking into account the entire (i.e. aggregate) street network in Seoul as of 2020, the overall level of street-network sprawl is 1.98, which is well-connected. The level of street-network sprawl in new development in Seoul followed a zig-zag trend with an overall increase.
South Korea in context: Aggregate street-network sprawl
As of 2020, the city with the most disconnected street network in South Korea is Taein-dong with an SNDi of 4.34, which is sprawly. Conversely, the most connected city is Chungju-si with an SNDi of 1.32, which is very well-connected. See these two cities’ trends in the above graph, or dive deeper into each: Chungju-si, Taein-dong.
The level of street-network sprawl in the aggregate network in South Korea rose steadily. To get a sense of how the aggregate street network has changed in South Korea, we can consider three of its most populous regions: Gyeonggi-do, Busan and Daegu. Disconnectivity in the most populous cities in South Korea follow the same country trend.
To date, South Korea is the 7th-most disconnected out of the 179 countries in the world. Its position in the ranks since 1975 has fallen; relative to other countries in the world, the street network in South Korea has become more connected. South Korea ranked 6th in 1975, 9th in 1976-1990, 10th in 1991-2005 and 7th in 2006-2020.
The largest city in South Korea is Seoul, with a population of 21547100 people. Taking into account the entire (i.e. aggregate) street network in Seoul as of 2020, the overall level of street-network sprawl is 1.98, which is well-connected. The level of street-network sprawl in the aggregate network in Seoul rose steadily.