Pyŏngsŏng in context: Street-network sprawl trends

Pyongsong in context

3456<19751976–19901991–20052006–2020SNDi of street additions
3456<19751976–19901991–20052006–2020SNDi of entire street network
PyongsongP'yongan-namdo (Region)North Korea (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Pyŏngsŏng plotted against P'yŏngan-namdo and North Korea. While P'yŏngan-namdo and North Korea both peaked in 1976-1990, Pyŏngsŏng's new street additions peaked in 1976-1990. Most recently, Pyŏngsŏng's incremental SNDi fell from 5.72 to 3.03 between 1991-2005 and 2006-2020. In terms of the aggregate network, Pyŏngsŏng ranked 10th out of 21 cities in P'yŏngan-namdo and 43rd out of 92 in North Korea as of 2020.

New Street Additions (2006–2020)

SNDi value
3.03
Rank in North Korea
14th of 92
Rank in P'yŏngan-namdo
4th of 21

Entire Network (Aggregate)

SNDi value
4.97
Rank in North Korea
43rd of 92
Rank in P'yŏngan-namdo
10th of 21

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
PyongsongNuevo LaredoBandar Abbas

In new street additions, Pyŏngsŏng and Nuevo Laredo both built increasingly disconnected streets from 1975 through 1976-1990, then improved, while Bandar Abbas fluctuated in its street-construction patterns. For the full network, Pyŏngsŏng and Nuevo Laredo both grew more disconnected from 1975 through 1991-2005, then improved, while Bandar Abbas became progressively more disconnected.