Ryongchon in context: Street-network sprawl trends

Ryongchon in context

4.85.66.47.2<19751976–19901991–20052006–2020SNDi of street additions
4.85.66.47.2<19751976–19901991–20052006–2020SNDi of entire street network
RyongchonP'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 Ryongchon plotted against P'yŏngan-bukto and North Korea. The SNDi of new construction in Ryongchon was at its lowest in 1976-1990, compared to P'yŏngan-bukto which rose steadily and North Korea which peaked in 1976-1990. Most recently, Ryongchon's incremental SNDi rose from 4.8 to 6.82 between 1991-2005 and 2006-2020. In terms of the aggregate network, Ryongchon ranked 13th out of 16 cities in P'yŏngan-bukto and 71st out of 92 in North Korea as of 2020.

New Street Additions (2006–2020)

SNDi value
6.82
Rank in North Korea
70th of 92
Rank in P'yŏngan-bukto
10th of 16

Entire Network (Aggregate)

SNDi value
6.21
Rank in North Korea
71st of 92
Rank in P'yŏngan-bukto
13th 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
RyongchonFengxianTarapoto

In new street additions, Ryongchon built increasingly connected streets from 1975 through 1976-1990, then shifted to more disconnected patterns, while Fengxian built increasingly disconnected streets from 1975 through 1991-2005, then improved and Tarapoto fluctuated in its street-construction patterns. Looking at the full network, Fengxian and Tarapoto both became progressively more disconnected, while Ryongchon became more connected from 1975 through 1991-2005, then grew more sprawly from 1991-2005 onwards.