Hoechang in context: Street-network sprawl trends

Hoechang in context

5678910<19751976–19901991–20052006–2020SNDi of street additions
5678910<19751976–19901991–20052006–2020SNDi of entire street network
HoechangP'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 Hoechang plotted against P'yŏngan-namdo and North Korea. The SNDi of new construction in Hoechang peaked in 1991-2005, 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, Hoechang's incremental SNDi fell from 9.51 to 8.48 between 1991-2005 and 2006-2020. In terms of the aggregate network, Hoechang ranked 21st out of 21 cities in P'yŏngan-namdo and 89th out of 92 in North Korea as of 2020.

New Street Additions (2006–2020)

SNDi value
8.48
Rank in North Korea
80th of 92
Rank in P'yŏngan-namdo
18th of 21

Entire Network (Aggregate)

SNDi value
8.9
Rank in North Korea
89th of 92
Rank in P'yŏngan-namdo
21st of 21

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

What about similarly populated cities?

246810<19751976–19901991–20052006–2020SNDi of street additions
246810<19751976–19901991–20052006–2020SNDi of entire street network
HoechangFanjiatunBrass

In new street additions, Hoechang and Brass both built increasingly disconnected streets from 1975 through 1991-2005, then improved, while Fanjiatun fluctuated in its street-construction patterns. For the full network, Hoechang grew more disconnected from 1975 through 1991-2005, then improved, while Fanjiatun fluctuated in connectivity and Brass became progressively more disconnected.