Onsong in context: Street-network sprawl trends

Onsong in context

44.85.66.4<19751976–19901991–20052006–2020SNDi of street additions
44.85.66.4<19751976–19901991–20052006–2020SNDi of entire street network
OnsongHamgyong-bukto (Region)North Korea (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Onsong plotted against Hamgyŏng-bukto and North Korea. The SNDi of new construction in Onsong peaked in 1991-2005, compared to Hamgyŏng-bukto which followed a zig-zag trend with an overall increase and North Korea which peaked in 1976-1990. Most recently, Onsong's incremental SNDi fell from 5.28 to 3.95 between 1991-2005 and 2006-2020. In terms of the aggregate network, Onsong ranked 1st out of 8 cities in Hamgyŏng-bukto and 19th out of 92 in North Korea as of 2020.

New Street Additions (2006–2020)

SNDi value
3.95
Rank in North Korea
26th of 92
Rank in Hamgyŏng-bukto
4th of 8

Entire Network (Aggregate)

SNDi value
4.11
Rank in North Korea
19th of 92
Rank in Hamgyŏng-bukto
1st of 8

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
OnsongStargardUbud

While Stargard and Ubud both built increasingly disconnected streets over time, Onsong built increasingly disconnected streets from 1975 through 1991-2005, then improved in new street additions. Looking at the full network, Stargard and Ubud both became progressively more disconnected, while Onsong grew more disconnected from 1975 through 1991-2005, then improved. Onsong and Ubud have been growing further apart in their street-network character since 1975.