Jeollabuk-do: region in South Korea
What exactly constitutes the spatial extent of the city? For these aggregations, we used the Global Human Settlement Layer Urban Center Database (GHS-UCDB) to define the boundaries of the city. These cities -- or urban centers -- cover areas that are densely populated and built-up, and so may extend beyond the spatial borders of these cities that we may be familiar with. The GHS area is shaded in blue.
View Jeollabuk-do, South Korea on the sprawlmap
Most recent snapshot: Taking into account the entire (i.e. aggregate) street network in Jeollabuk-do as of 2014, the overall level of street-network sprawl is 1.6, which is relatively well-connected.
Trends in street network construction: The SNDis of street construction for the respective time periods are 1.1, 1.5, 2.65 and 2.69. In each period, new street development in Jeollabuk-do steadily grows more disconnected than in the last. This increase has slowed: between 1975 and 1976-1990, SNDi rose by 0.39 points, but between 1991-2000 and 2001-2014, it rose by just 0.05.
Quantity of street network construction: The street network in Jeollabuk-do spans a total of 10231 kilometers. The period with the greatest volume of street construction was 1976-1990. These roads have an SNDi of 1.5, which is relatively well-connected.
Effect on the aggregate network: New construction in each period adds to the total stock of streets, but does not change streets that have already been built. Therefore, it has a limited effect on the street network as a whole. The SNDis of the aggregate street network in the respective time periods are 1.1, 1.34, 1.48 and 1.6. Overall, the SNDi of the aggregate street network has risen: the street network in Jeollabuk-do has become more disconnected. This increase has slowed: between 1975 and 1976-1990, SNDi rose by 0.23 points, but between 1991-2000 and 2001-2014, it rose by just 0.12.
The level of street-network sprawl in new development in Jeollabuk-do rose steadily. To get a sense of how street development has changed in Jeollabuk-do, we can consider three of its most populous cities: Jeonju, Gunsan-si and Iksan-si. Disconnectivity in the most populous cities in Jeollabuk-do follow the same region trend.
How do development practices in Jeollabuk-do fare in comparison to others in South Korea? Most recently in 2001-2014, street construction in Jeollabuk-do was the 5th-most disconnected out of the 15 regions in South Korea. Its position in the ranks since 1975 has fallen; relative to other regions in South Korea, street construction in Jeollabuk-do has become more connected. Jeollabuk-do ranked 4th in 1975, 7th in 1976-1990, 3rd in 1991-2000 and 5th in 2001-2014.
As of 2014, the city with the most disconnected street network in Jeollabuk-do is Jeonju with an SNDi of 0.75, which is relatively well-connected. Conversely, the most connected city is Gunsan-si with an SNDi of 0.27, which is very well-connected. See trends for these cities: Gunsan-si, Jeonju
The level of street-network sprawl in the aggregate network in Jeollabuk-do rose steadily. To get a sense of how the aggregate street network has changed in Jeollabuk-do, we can consider three of its most populous cities: Jeonju, Gunsan-si and Iksan-si. Disconnectivity in the most populous cities in Jeollabuk-do follow the same region trend.
To date, Jeollabuk-do is the 5th-most disconnected out of the 15 regions in South Korea. Its position in the ranks since 1975 has fallen; relative to other regions in South Korea, the street network in Jeollabuk-do has become more connected. Jeollabuk-do ranked 4th in 1975, 6th in 1976-1990, 6th in 1991-2000 and 5th in 2001-2014.