Chonnae in context: Street-network sprawl trends

Chonnae in context

5.466.67.2<19751976–19901991–20052006–2020SNDi of street additions
5.466.67.2<19751976–19901991–20052006–2020SNDi of entire street network
ChonnaeKangwon-do (Region)North Korea (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Chonnae plotted against Kangwŏn-do and North Korea. The SNDi of new construction in Chonnae was at its lowest in 1976-1990, compared to Kangwŏn-do which peaked in 1976-1990 and North Korea which peaked in 1976-1990. Most recently, Chonnae's incremental SNDi rose from 6.08 to 6.29 between 1991-2005 and 2006-2020. In terms of the aggregate network, Chonnae ranked 3rd out of 4 cities in Kangwŏn-do and 69th out of 92 in North Korea as of 2020.

New Street Additions (2006–2020)

SNDi value
6.29
Rank in North Korea
64th of 92
Rank in Kangwŏn-do
3rd of 4

Entire Network (Aggregate)

SNDi value
6.13
Rank in North Korea
69th of 92
Rank in Kangwŏn-do
3rd of 4

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
ChonnaeWloclawekSheohar

While Włocławek and Sheohar both fluctuated in its street-construction patterns, Chonnae built increasingly connected streets from 1975 through 1976-1990, then shifted to more disconnected patterns in new street additions. For the full network, Chonnae became more connected from 1975 through 1991-2005, then grew more sprawly from 1991-2005 onwards, while Włocławek became progressively more disconnected and Sheohar fluctuated in connectivity.