P'yŏngan-bukto: region in North 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 P'yŏngan-bukto, North Korea on the sprawlmap
Most recent snapshot: Taking into account the entire (i.e. aggregate) street network in P'yŏngan-bukto as of 2014, the overall level of street-network sprawl is 5.59, which is highly disconnected.
Trends in street network construction: The SNDis of street construction for the respective time periods are 5.32, 5.97, 5.01 and 6.66. Disconnectivity in street construction in P'yŏngan-bukto follows a zig-zag trend. In 1991-2000, street construction was most disconnected, while construction was most connected in 2001-2014.
Quantity of street network construction: The street network in P'yŏngan-bukto spans a total of 5048 kilometers. It is dominated by roads constructed prior to 1975. These roads have an SNDi of 5.32, which is highly disconnected.
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 5.32, 5.51, 5.49 and 5.59. Disconnectivity in P'yŏngan-bukto's street network follows a zig-zag trend. In 1975, the region was most disconnected; while it was most connected in 2001-2014.
The level of street-network sprawl in new development in P'yŏngan-bukto followed a zig-zag trend with an overall increase. To get a sense of how street development has changed in P'yŏngan-bukto, we can consider three of its most populous cities: Jongju, Ryongchon and Sonchon. None of the most populous cities follow the same trend as the region. The level of street-network sprawl in new development in Jongju followed a zig-zag trend. The level of street-network sprawl in new development in Ryongchon followed a zig-zag trend. The level of street-network sprawl in new development in Sonchon followed a zig-zag trend.
How do development practices in P'yŏngan-bukto fare in comparison to others in North Korea? Most recently in 2001-2014, street construction in P'yŏngan-bukto was the 5th-most disconnected out of the 13 regions in North Korea. Its position in the ranks since 1975 has risen; relative to other regions in North Korea, street construction in P'yŏngan-bukto has become more disconnected. P'yŏngan-bukto ranked 7th in 1975, 8th in 1976-1990, 11th in 1991-2000 and 5th in 2001-2014.
As of 2014, the city with the most disconnected street network in P'yŏngan-bukto is Jongju with an SNDi of 6.6, which is highly disconnected. Conversely, the most connected city is Taegwan with an SNDi of 1.89, which is relatively well-connected. See trends for these cities: Taegwan, Jongju
The level of street-network sprawl in the aggregate network in P'yŏngan-bukto followed a zig-zag trend with an overall increase. To get a sense of how the aggregate street network has changed in P'yŏngan-bukto, we can consider three of its most populous cities: Jongju, Ryongchon and Sonchon. None of the most populous cities follow the same trend as the region. The level of street-network sprawl in the aggregate network in Jongju fell steadily. The level of street-network sprawl in the aggregate network in Ryongchon followed a zig-zag trend with an overall increase. The level of street-network sprawl in the aggregate network in Sonchon rose steadily.
To date, P'yŏngan-bukto is the 8th-most disconnected out of the 13 regions in North Korea. Its position in the ranks since 1975 has fallen; relative to other regions in North Korea, the street network in P'yŏngan-bukto has become more connected. P'yŏngan-bukto ranked 7th in 1975, 8th in 1976-1990, 8th in 1991-2000 and 8th in 2001-2014.