Sohung in context: Street-network sprawl trends

Sohung in context

23456<19751976–19901991–20052006–2020SNDi of street additions
23456<19751976–19901991–20052006–2020SNDi of entire street network
SohungHwanghae-bukto (Region)North Korea (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Sohung plotted against Hwanghae-bukto and North Korea. The SNDi of new construction in Sohung followed a zig-zag trend with an overall decrease, compared to Hwanghae-bukto which followed a zig-zag trend with an overall increase and North Korea which peaked in 1976-1990. Most recently, Sohung's incremental SNDi rose from 2.07 to 4.29 between 1991-2005 and 2006-2020. In terms of the aggregate network, Sohung ranked 2nd out of 6 cities in Hwanghae-bukto and 31st out of 92 in North Korea as of 2020.

New Street Additions (2006–2020)

SNDi value
4.29
Rank in North Korea
32nd of 92
Rank in Hwanghae-bukto
3rd of 6

Entire Network (Aggregate)

SNDi value
4.72
Rank in North Korea
31st of 92
Rank in Hwanghae-bukto
2nd of 6

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

What about similarly populated cities?

2468<19751976–19901991–20052006–2020SNDi of street additions
2468<19751976–19901991–20052006–2020SNDi of entire street network
SohungAddis KidanHirna

In new street additions, Sohung fluctuated in its street-construction patterns, while Addis Kidan built increasingly disconnected streets over time and Hirna built increasingly disconnected streets from 1975 through 1991-2005, then improved. For the full network, Sohung grew more disconnected from 1975 through 1976-1990, then improved, while Addis Kidan became progressively more disconnected and Hirna grew more disconnected from 1975 through 1991-2005, then improved. Sohung and Hirna have been converging in their street-network character since 1975.