Unryul in context: Street-network sprawl trends

Unryul in context

34567<19751976–19901991–20052006–2020SNDi of street additions
34567<19751976–19901991–20052006–2020SNDi of entire street network
UnryulHwanghae-namdo (Region)North Korea (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Unryul plotted against Hwanghae-namdo and North Korea. The SNDi of new construction in Unryul followed a zig-zag trend, compared to Hwanghae-namdo which followed a zig-zag trend with an overall increase and North Korea which peaked in 1976-1990. In terms of the aggregate network, Unryul ranked 2nd out of 15 cities in Hwanghae-namdo and 3rd out of 92 in North Korea as of 2020.

New Street Additions (2006–2020)

SNDi value
N/A

Entire Network (Aggregate)

SNDi value
2.95
Rank in North Korea
3rd of 92
Rank in Hwanghae-namdo
2nd 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
UnryulBarhajTierralta

In new street additions, Unryul fluctuated in its street-construction patterns, while Barhaj fluctuated in its street-construction patterns and Tierralta built increasingly disconnected streets from 1975 through 1976-1990, then improved. For the full network, Unryul became progressively more disconnected, while Barhaj fluctuated in connectivity and Tierralta grew more disconnected from 1975 through 1991-2005, then improved. Notably, Unryul had a more connected network than Barhaj in 1975 but the two have since reversed their relative ranking.