북청읍 in context: Street-network sprawl trends

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with 북청읍 plotted against Hamgyŏng-namdo and North Korea. The SNDi of new construction in 북청읍 followed a zig-zag trend with an overall decrease, compared to Hamgyŏng-namdo which peaked in 1991-2005 and North Korea which peaked in 1976-1990. In terms of the aggregate network, 북청읍 ranked 1st out of 11 cities in Hamgyŏng-namdo and 16th out of 92 in North Korea as of 2020.

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

What about similarly populated cities?

• Taunsa Sharif, Pakistan
• Pingshan, China
• Caxito, Angola
• Amethi, India
• Trois-Rivières, Canada
• Arauca, Colombia

In new street additions, 북청읍 fluctuated in its street-construction patterns, while Taunsa Sharif built increasingly connected streets from 1975 through 1976-1990, then shifted to more disconnected patterns and Amethi built increasingly disconnected streets from 1975 through 1976-1990, then improved. For the full network, 북청읍 grew more disconnected from 1975 through 1976-1990, then improved, while Taunsa Sharif became more connected from 1975 through 1976-1990, then grew more sprawly from 1976-1990 onwards and Amethi grew more disconnected from 1975 through 1976-1990, then improved. 북청읍 and Taunsa Sharif have been growing further apart in their street-network character since 1975.