Sinanju in context: Street-network sprawl trends

Sinanju in context

4.24.95.66.3<19751976–19901991–20052006–2020SNDi of street additions
4.24.95.66.3<19751976–19901991–20052006–2020SNDi of entire street network
SinanjuP'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 Sinanju plotted against P'yŏngan-namdo and North Korea. The SNDi of new construction in Sinanju rose steadily, compared to P'yŏngan-namdo which followed a zig-zag trend with an overall increase and North Korea which peaked in 1976-1990. Most recently, Sinanju's incremental SNDi rose from 6.25 to 6.25 between 1991-2005 and 2006-2020. In terms of the aggregate network, Sinanju ranked 11th out of 21 cities in P'yŏngan-namdo and 51st out of 92 in North Korea as of 2020.

New Street Additions (2006–2020)

SNDi value
6.25
Rank in North Korea
63rd of 92
Rank in P'yŏngan-namdo
15th of 21

Entire Network (Aggregate)

SNDi value
5.26
Rank in North Korea
51st of 92
Rank in P'yŏngan-namdo
11th of 21

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

What about similarly populated cities?

36912<19751976–19901991–20052006–2020SNDi of street additions
36912<19751976–19901991–20052006–2020SNDi of entire street network
SinanjuRaozanChagni

In new street additions, Sinanju and Chagni both built increasingly disconnected streets over time, while Raozan fluctuated in its street-construction patterns. For the full network, Sinanju and Chagni both became progressively more disconnected, while Raozan fluctuated in connectivity.