Nampo in context: Street-network sprawl trends

Nampo in context

4.85.46<19751976–19901991–20052006–2020SNDi of street additions
4.85.46<19751976–19901991–20052006–2020SNDi of entire street network
NampoP'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 Nampo plotted against P'yŏngan-namdo and North Korea. While P'yŏngan-namdo and North Korea both peaked in 1976-1990, Nampo's new street additions peaked in 1976-1990. Most recently, Nampo's incremental SNDi fell from 5.47 to 4.52 between 1991-2005 and 2006-2020. In terms of the aggregate network, Nampo ranked 13th out of 21 cities in P'yŏngan-namdo and 55th out of 92 in North Korea as of 2020.

New Street Additions (2006–2020)

SNDi value
4.52
Rank in North Korea
38th of 92
Rank in P'yŏngan-namdo
10th of 21

Entire Network (Aggregate)

SNDi value
5.39
Rank in North Korea
55th of 92
Rank in P'yŏngan-namdo
13th of 21

Rankings go from most connected to most disconnected — rank 1 is the most connected.

What about similarly populated cities?

246810<19751976–19901991–20052006–2020SNDi of street additions
246810<19751976–19901991–20052006–2020SNDi of entire street network
NampoAgailjharaKenema

In new street additions, Nampo built increasingly disconnected streets from 1975 through 1976-1990, then improved, while Agailjhara built increasingly connected streets from 1975 through 1991-2005, then shifted to more disconnected patterns and Kenema fluctuated in its street-construction patterns. For the full network, Nampo grew more disconnected from 1975 through 1991-2005, then improved, while Agailjhara became more connected from 1975 through 1991-2005, then grew more sprawly from 1991-2005 onwards and Kenema became progressively more disconnected. Nampo and Kenema have been converging in their street-network character since 1975.