Taeryonggang in context: Street-network sprawl trends

Taeryonggang in context

4.55.46.37.2<19751976–19901991–20052006–2020SNDi of street additions
4.55.46.37.2<19751976–19901991–20052006–2020SNDi of entire street network
TaeryonggangP'yongan-bukto (Region)North Korea (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Taeryonggang plotted against P'yŏngan-bukto and North Korea. The SNDi of new construction in Taeryonggang peaked in 1991-2005, compared to P'yŏngan-bukto which rose steadily and North Korea which peaked in 1976-1990. Most recently, Taeryonggang's incremental SNDi fell from 7.31 to 6.88 between 1991-2005 and 2006-2020. In terms of the aggregate network, Taeryonggang ranked 8th out of 16 cities in P'yŏngan-bukto and 52nd out of 92 in North Korea as of 2020.

New Street Additions (2006–2020)

SNDi value
6.88
Rank in North Korea
73rd of 92
Rank in P'yŏngan-bukto
11th of 16

Entire Network (Aggregate)

SNDi value
5.27
Rank in North Korea
52nd of 92
Rank in P'yŏngan-bukto
8th of 16

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
TaeryonggangYushuKanata

While Yushu and Kanata both built increasingly disconnected streets from 1975 through 1976-1990, then improved, Taeryonggang built increasingly disconnected streets from 1975 through 1991-2005, then improved in new street additions. For the full network, Taeryonggang became progressively more disconnected, while Yushu grew more disconnected from 1975 through 1976-1990, then improved and Kanata grew more disconnected from 1975 through 1991-2005, then improved. Taeryonggang and Yushu have been growing further apart in their street-network character since 1975.