Jeollanam-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 Jeollanam-do, South Korea on the sprawlmap
Most recent snapshot: Taking into account the entire (i.e. aggregate) street network in Jeollanam-do as of 2014, the overall level of street-network sprawl is 1.8, which is relatively well-connected.
Trends in street network construction: The SNDis of street construction for the respective time periods are 1.29, 1.74, 2.11 and 2.57. In each period, new street development in Jeollanam-do steadily grows more disconnected than in the last. This increase has slowed: between 1975 and 1976-1990, SNDi rose by 0.46 points, but between 1991-2000 and 2001-2014, it rose by just 0.45.
Quantity of street network construction: The street network in Jeollanam-do spans a total of 14032 kilometers. The period with the greatest volume of street construction was 1976-1990. These roads have an SNDi of 1.74, 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 1.29, 1.59, 1.67 and 1.8. Overall, the SNDi of the aggregate street network has risen: the street network in Jeollanam-do has become more disconnected. This increase has slowed: between 1975 and 1976-1990, SNDi rose by 0.3 points, but between 1991-2000 and 2001-2014, it rose by just 0.13.
The level of street-network sprawl in new development in Jeollanam-do rose steadily. To get a sense of how street development has changed in Jeollanam-do, we can consider three of its most populous cities: Mokpo-si, Suncheon-si and Sora-myeon. Out of the three cities, Mokpo-si and Sora-myeon do not follow the same trend as the region. The level of street-network sprawl in new development in Mokpo-si was at its lowest in 1976-1990. The level of street-network sprawl in new development in Sora-myeon was at its lowest in 1991-2000.
How do development practices in Jeollanam-do fare in comparison to others in South Korea? Most recently in 2001-2014, street construction in Jeollanam-do was the 7th-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 Jeollanam-do has become more connected. Jeollanam-do ranked 2nd in 1975, 5th in 1976-1990, 7th in 1991-2000 and 7th in 2001-2014.
As of 2014, the city with the most disconnected street network in Jeollanam-do is Geumseong-myeon with an SNDi of 6.29, which is highly disconnected. Conversely, the most connected city is Sora-myeon with an SNDi of 0.92, which is relatively well-connected. See trends for these cities: Sora-myeon, Geumseong-myeon
The level of street-network sprawl in the aggregate network in Jeollanam-do rose steadily. To get a sense of how the aggregate street network has changed in Jeollanam-do, we can consider three of its most populous cities: Mokpo-si, Suncheon-si and Sora-myeon. Out of the three cities, Mokpo-si and Sora-myeon do not follow the same trend as the region. The level of street-network sprawl in the aggregate network in Mokpo-si was at its lowest in 1976-1990. The level of street-network sprawl in the aggregate network in Sora-myeon fell steadily.
To date, Jeollanam-do is the 3rd-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 Jeollanam-do has become more connected. Jeollanam-do ranked 2nd in 1975, 3rd in 1976-1990, 3rd in 1991-2000 and 3rd in 2001-2014.