Hyesan in context: Street-network sprawl trends

Hyesan in context

4.95.66.37<19751976–19901991–20052006–2020SNDi of street additions
4.95.66.37<19751976–19901991–20052006–2020SNDi of entire street network
HyesanRyanggang (Region)North Korea (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Hyesan plotted against Ryanggang and North Korea. The SNDi of new construction in Hyesan fell steadily, compared to Ryanggang which peaked in 1976-1990 and North Korea which peaked in 1976-1990. Most recently, Hyesan's incremental SNDi fell from 5.93 to 5.36 between 1991-2005 and 2006-2020. In terms of the aggregate network, Hyesan ranked 1st out of 1 cities in Ryanggang and 77th out of 92 in North Korea as of 2020.

New Street Additions (2006–2020)

SNDi value
5.36
Rank in North Korea
48th of 92
Rank in Ryanggang
1st of 1

Entire Network (Aggregate)

SNDi value
6.51
Rank in North Korea
77th of 92
Rank in Ryanggang
1st of 1

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

What about similarly populated cities?

34567<19751976–19901991–20052006–2020SNDi of street additions
34567<19751976–19901991–20052006–2020SNDi of entire street network
HyesanBaiyinNacala

In new street additions, Hyesan built increasingly connected streets over time, while Baiyin built increasingly disconnected streets from 1975 through 1976-1990, then improved and Nacala fluctuated in its street-construction patterns. For the full network, Hyesan and Baiyin both became progressively more connected, while Nacala fluctuated in connectivity.