Sunchon in context: Street-network sprawl trends
Sunchon in context
The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Sunchon plotted against P'yŏngan-namdo and North Korea. The SNDi of new construction in Sunchon peaked in 1991-2005, compared to P'yŏngan-namdo which followed a zig-zag trend with an overall increase and North Korea which peaked in 1976-1990. Most recently, Sunchon's incremental SNDi fell from 8.0 to 5.7 between 1991-2005 and 2006-2020. In terms of the aggregate network, Sunchon ranked 17th out of 21 cities in P'yŏngan-namdo and 72nd out of 92 in North Korea as of 2020.
New Street Additions (2006–2020)
- SNDi value
- 5.7
- Rank in North Korea
- 55th of 92
- Rank in P'yŏngan-namdo
- 13th of 21
Entire Network (Aggregate)
- SNDi value
- 6.22
- Rank in North Korea
- 72nd of 92
- Rank in P'yŏngan-namdo
- 17th of 21
Rankings go from most connected to most disconnected — rank 1 is the most connected.
What about similarly populated cities?
While Petit-Goâve and Sintang both fluctuated in its street-construction patterns, Sunchon built increasingly disconnected streets from 1975 through 1991-2005, then improved in new street additions. Looking at the full network, Petit-Goâve and Sintang both became progressively more disconnected, while Sunchon grew more disconnected from 1975 through 1991-2005, then improved. Sunchon and Petit-Goâve have been converging in their street-network character since 1975.