Tokchon in context: Street-network sprawl trends

Tokchon in context

4.24.85.466.6<19751976–19901991–20052006–2020SNDi of street additions
4.24.85.466.6<19751976–19901991–20052006–2020SNDi of entire street network
TokchonP'yongan-namdo (Region)North Korea (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Tokchon plotted against P'yŏngan-namdo and North Korea. While P'yŏngan-namdo and North Korea both peaked in 1976-1990, Tokchon's new street additions peaked in 1976-1990. Most recently, Tokchon's incremental SNDi fell from 4.71 to 4.37 between 1991-2005 and 2006-2020. In terms of the aggregate network, Tokchon ranked 6th out of 21 cities in P'yŏngan-namdo and 32nd out of 92 in North Korea as of 2020.

New Street Additions (2006–2020)

SNDi value
4.37
Rank in North Korea
35th of 92
Rank in P'yŏngan-namdo
8th of 21

Entire Network (Aggregate)

SNDi value
4.72
Rank in North Korea
32nd of 92
Rank in P'yŏngan-namdo
6th of 21

Rankings go from most connected to most disconnected — rank 1 is the most connected.

What about similarly populated cities?

12345<19751976–19901991–20052006–2020SNDi of street additions
12345<19751976–19901991–20052006–2020SNDi of entire street network
TokchonBandunduTorun

In new street additions, Tokchon built increasingly disconnected streets from 1975 through 1976-1990, then improved, while Bandundu built increasingly disconnected streets from 1975 through 1991-2005, then improved and Toruń built increasingly disconnected streets over time. Looking at the full network, Bandundu and Toruń both became progressively more disconnected, while Tokchon grew more disconnected from 1975 through 1976-1990, then improved.