Yonan in context: Street-network sprawl trends

Yonan in context

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

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Yonan plotted against Hwanghae-namdo and North Korea. The SNDi of new construction in Yonan 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, Yonan's incremental SNDi rose from 2.77 to 6.13 between 1991-2005 and 2006-2020. In terms of the aggregate network, Yonan ranked 12th out of 15 cities in Hwanghae-namdo and 37th out of 92 in North Korea as of 2020.

New Street Additions (2006–2020)

SNDi value
6.13
Rank in North Korea
61st of 92
Rank in Hwanghae-namdo
9th of 15

Entire Network (Aggregate)

SNDi value
4.81
Rank in North Korea
37th of 92
Rank in Hwanghae-namdo
12th of 15

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

What about similarly populated cities?

246<19751976–19901991–20052006–2020SNDi of street additions
246<19751976–19901991–20052006–2020SNDi of entire street network
YonanRiberaltaBeitian

In new street additions, Yonan and Riberalta both fluctuated in its street-construction patterns, while Beitian built increasingly disconnected streets from 1975 through 1976-1990, then improved. For the full network, Yonan and Riberalta both fluctuated in connectivity, while Beitian grew more disconnected from 1975 through 1976-1990, then improved. Yonan and Beitian have been growing further apart in their street-network character since 1975.