Trends
5.45
SNDi (2020)2,100 km
Total street network1975–2020
Analysis periodDisconnectedness burden of street construction in Hamgyong-bukto
▸ Hover over bars to see values
The chart above shows, for each construction period in the Hamgyŏng-bukto region, the SNDi of new street additions (bar height) and the volume added (bar width), so that bar area reflects the total disconnectedness burden of that period's construction. The 1976-1990 period contributed the greatest disconnectedness burden, with 780 km of street added at an SNDi of 6.29. Overall, the SNDi of new street additions in the region followed a zig-zag trend with an overall increase.
How have Hamgyŏng-bukto's street networks changed over time?
Most recent snapshot
Taking into account the entire (i.e. aggregate) street network in Hamgyŏng-bukto as of 2020, the overall level of street-network sprawl is 5.45, which is very sprawly.
Trends in street network construction
The SNDis of street construction for the respective time periods are 4.82, 6.29, 5.16 and 5.82. Disconnectivity in street construction in Hamgyŏng-bukto follows a zig-zag trend. In 1975, street construction was most disconnected, while construction was most connected in 1976-1990.
Quantity of street network construction
The street network in Hamgyŏng-bukto spans a total of 2,100 kilometers. The period with the greatest volume of street construction was 1976-1990. These roads have an SNDi of 6.29, which is very sprawly.
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 4.82, 5.37, 5.36 and 5.45. Disconnectivity in Hamgyŏng-bukto's street network follows a zig-zag trend. In 1975, the region was most disconnected; while it was most connected in 2006-2020.