Chongdan in context: Street-network sprawl trends

Chongdan in context

3456<19751976–19901991–20052006–2020SNDi of street additions
3456<19751976–19901991–20052006–2020SNDi of entire street network
ChongdanHwanghae-namdo (Region)North Korea (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Chongdan plotted against Hwanghae-namdo and North Korea. The SNDi of new construction in Chongdan followed a zig-zag trend with an overall increase, compared to Hwanghae-namdo which followed a zig-zag trend with an overall increase and North Korea which peaked in 1976-1990. Most recently, Chongdan's incremental SNDi rose from 2.87 to 4.27 between 1991-2005 and 2006-2020. In terms of the aggregate network, Chongdan ranked 8th out of 15 cities in Hwanghae-namdo and 12th out of 92 in North Korea as of 2020.

New Street Additions (2006–2020)

SNDi value
4.27
Rank in North Korea
31st of 92
Rank in Hwanghae-namdo
7th of 15

Entire Network (Aggregate)

SNDi value
3.98
Rank in North Korea
12th of 92
Rank in Hwanghae-namdo
8th of 15

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

What about similarly populated cities?

1.82.73.64.5<19751976–19901991–20052006–2020SNDi of street additions
1.82.73.64.5<19751976–19901991–20052006–2020SNDi of entire street network
ChongdanDingnanMasvingo

In new street additions, Chongdan and Dingnan both fluctuated in its street-construction patterns, while Masvingo built increasingly disconnected streets over time. Looking at the full network, Dingnan and Masvingo both became progressively more disconnected, while Chongdan fluctuated in connectivity. Chongdan and Dingnan have been converging in their street-network character since 1975.