Jongphyong in context: Street-network sprawl trends
Jongphyong in context
The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Jongphyong plotted against Hamgyŏng-namdo and North Korea. The SNDi of new construction in Jongphyong peaked in 1991-2005, compared to Hamgyŏng-namdo which peaked in 1991-2005 and North Korea which peaked in 1976-1990. Most recently, Jongphyong's incremental SNDi fell from 6.63 to 4.36 between 1991-2005 and 2006-2020. In terms of the aggregate network, Jongphyong ranked 6th out of 11 cities in Hamgyŏng-namdo and 49th out of 92 in North Korea as of 2020.
New Street Additions (2006–2020)
- SNDi value
- 4.36
- Rank in North Korea
- 34th of 92
- Rank in Hamgyŏng-namdo
- 5th of 11
Entire Network (Aggregate)
- SNDi value
- 5.2
- Rank in North Korea
- 49th of 92
- Rank in Hamgyŏng-namdo
- 6th of 11
Rankings go from most connected to most disconnected — rank 1 is the most connected.
What about similarly populated cities?
In new street additions, Jongphyong built increasingly disconnected streets from 1975 through 1991-2005, then improved, while Sivaganga built increasingly disconnected streets over time and Weihui built increasingly disconnected streets from 1975 through 1976-1990, then improved. For the full network, Jongphyong grew more disconnected from 1975 through 1991-2005, then improved, while Sivaganga became progressively more disconnected and Weihui grew more disconnected from 1975 through 1976-1990, then improved. Jongphyong and Weihui have been growing further apart in their street-network character since 1975.