Kwail in context: Street-network sprawl trends

Kwail in context

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

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Kwail plotted against Hwanghae-namdo and North Korea. The SNDi of new construction in Kwail followed a zig-zag trend with an overall decrease, compared to Hwanghae-namdo which followed a zig-zag trend with an overall increase and North Korea which peaked in 1976-1990. Most recently, Kwail's incremental SNDi fell from 4.2 to 2.32 between 1991-2005 and 2006-2020. In terms of the aggregate network, Kwail ranked 6th out of 15 cities in Hwanghae-namdo and 9th out of 92 in North Korea as of 2020.

New Street Additions (2006–2020)

SNDi value
2.32
Rank in North Korea
7th of 92
Rank in Hwanghae-namdo
1st of 15

Entire Network (Aggregate)

SNDi value
3.77
Rank in North Korea
9th of 92
Rank in Hwanghae-namdo
6th of 15

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

What about similarly populated cities?

0.91.82.73.64.5<19751976–19901991–20052006–2020SNDi of street additions
0.91.82.73.64.5<19751976–19901991–20052006–2020SNDi of entire street network
KwailDengiInowroclaw

In new street additions, Kwail fluctuated in its street-construction patterns, while Dengi built increasingly disconnected streets from 1975 through 1991-2005, then improved and Inowrocław built increasingly disconnected streets over time. Looking at the full network, Dengi and Inowrocław both became progressively more disconnected, while Kwail fluctuated in connectivity.