홍원읍 in context: Street-network sprawl trends

hongweoneub in context

6912<19751976–19901991–20052006–2020SNDi of street additions
6912<19751976–19901991–20052006–2020SNDi of entire street network
hongweoneubHamgyong-namdo (Region)North Korea (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with 홍원읍 plotted against Hamgyŏng-namdo and North Korea. The SNDi of new construction in 홍원읍 peaked in 1991-2005, compared to Hamgyŏng-namdo which peaked in 1991-2005 and North Korea which peaked in 1976-1990. Most recently, 홍원읍's incremental SNDi fell from 12.38 to 6.33 between 1991-2005 and 2006-2020. In terms of the aggregate network, 홍원읍 ranked 7th out of 11 cities in Hamgyŏng-namdo and 56th out of 92 in North Korea as of 2020.

New Street Additions (2006–2020)

SNDi value
6.33
Rank in North Korea
66th of 92
Rank in Hamgyŏng-namdo
10th of 11

Entire Network (Aggregate)

SNDi value
5.39
Rank in North Korea
56th of 92
Rank in Hamgyŏng-namdo
7th of 11

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

What about similarly populated cities?

36912<19751976–19901991–20052006–2020SNDi of street additions
36912<19751976–19901991–20052006–2020SNDi of entire street network
hongweoneubWajidOrekhovo-Zouievo

In new street additions, 홍원읍 built increasingly disconnected streets from 1975 through 1991-2005, then improved, while Wajid built increasingly connected streets from 1975 through 1991-2005, then shifted to more disconnected patterns and Orekhovo-Zouïevo built increasingly disconnected streets over time. For the full network, 홍원읍 and Orekhovo-Zouïevo both became progressively more disconnected, while Wajid became progressively more connected. 홍원읍 and Wajid have been growing further apart in their street-network character since 1975.