Chŏngjin in context: Street-network sprawl trends

Chongjin in context

4.85.46<19751976–19901991–20052006–2020SNDi of street additions
4.85.46<19751976–19901991–20052006–2020SNDi of entire street network
ChongjinHamgyong-bukto (Region)North Korea (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Chŏngjin plotted against Hamgyŏng-bukto and North Korea. While Hamgyŏng-bukto and North Korea both peaked in 1976-1990, Chŏngjin's new street additions peaked in 1976-1990. Most recently, Chŏngjin's incremental SNDi fell from 5.65 to 4.69 between 1991-2005 and 2006-2020. In terms of the aggregate network, Chŏngjin ranked 6th out of 8 cities in Hamgyŏng-bukto and 44th out of 92 in North Korea as of 2020.

New Street Additions (2006–2020)

SNDi value
4.69
Rank in North Korea
41st of 92
Rank in Hamgyŏng-bukto
5th of 8

Entire Network (Aggregate)

SNDi value
4.98
Rank in North Korea
44th of 92
Rank in Hamgyŏng-bukto
6th of 8

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

What about similarly populated cities?

246<19751976–19901991–20052006–2020SNDi of street additions
246<19751976–19901991–20052006–2020SNDi of entire street network
ChongjinCheongju-siSantiago de los Caballeros

In new street additions, Chŏngjin built increasingly disconnected streets from 1975 through 1976-1990, then improved, while Cheongju-si fluctuated in its street-construction patterns and Santiago de los Caballeros built increasingly disconnected streets over time. Looking at the full network, Cheongju-si and Santiago de los Caballeros both became progressively more disconnected, while Chŏngjin grew more disconnected from 1975 through 1991-2005, then improved. Chŏngjin and Santiago de los Caballeros have been converging in their street-network character since 1975.