Pyoksong in context: Street-network sprawl trends

Pyoksong in context

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

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Pyoksong plotted against Hwanghae-namdo and North Korea. The SNDi of new construction in Pyoksong was at its lowest in 1991-2005, compared to Hwanghae-namdo which followed a zig-zag trend with an overall increase and North Korea which peaked in 1976-1990. Most recently, Pyoksong's incremental SNDi rose from 2.16 to 2.61 between 1991-2005 and 2006-2020. In terms of the aggregate network, Pyoksong ranked 4th out of 15 cities in Hwanghae-namdo and 6th out of 92 in North Korea as of 2020.

New Street Additions (2006–2020)

SNDi value
2.61
Rank in North Korea
10th of 92
Rank in Hwanghae-namdo
4th of 15

Entire Network (Aggregate)

SNDi value
3.31
Rank in North Korea
6th of 92
Rank in Hwanghae-namdo
4th of 15

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

What about similarly populated cities?

23456<19751976–19901991–20052006–2020SNDi of street additions
23456<19751976–19901991–20052006–2020SNDi of entire street network
PyoksongAn KheArzuiyeh

In new street additions, Pyoksong built increasingly connected streets from 1975 through 1991-2005, then shifted to more disconnected patterns, while An Khê fluctuated in its street-construction patterns and Arzuiyeh built increasingly connected streets over time. For the full network, Pyoksong and Arzuiyeh both became progressively more connected, while An Khê fluctuated in connectivity. Notably, Pyoksong had a more connected network than Arzuiyeh in 1975 but the two have since reversed their relative ranking.