Dong-an in context: Street-network sprawl trends
Dong-an in context
The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Dong-an plotted against P'yŏngan-bukto and North Korea. The SNDi of new construction in Dong-an followed a zig-zag trend with an overall increase, compared to P'yŏngan-bukto which rose steadily and North Korea which peaked in 1976-1990. Most recently, Dong-an's incremental SNDi fell from 5.12 to 4.66 between 1991-2005 and 2006-2020. In terms of the aggregate network, Dong-an ranked 4th out of 16 cities in P'yŏngan-bukto and 15th out of 92 in North Korea as of 2020.
New Street Additions (2006–2020)
- SNDi value
- 4.66
- Rank in North Korea
- 40th of 92
- Rank in P'yŏngan-bukto
- 7th of 16
Entire Network (Aggregate)
- SNDi value
- 4.03
- Rank in North Korea
- 15th of 92
- Rank in P'yŏngan-bukto
- 4th of 16
Rankings go from most connected to most disconnected — rank 1 is the most connected.
What about similarly populated cities?
In new street additions, Dong-an fluctuated in its street-construction patterns, while Balasinor built increasingly disconnected streets over time and Warud built increasingly connected streets from 1975 through 1976-1990, then shifted to more disconnected patterns. For the full network, Dong-an and Warud both became more connected from 1975 through 1976-1990, then grew more sprawly from 1976-1990 onwards, while Balasinor became progressively more disconnected.