Kasangulu 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 Kasangulu plotted against Kongo-Central and Democratic Republic of the Congo. The SNDi of new construction in Kasangulu rose steadily, compared to Kongo-Central which rose steadily and Democratic Republic of the Congo which followed a zig-zag trend with an overall increase. Most recently, Kasangulu's incremental SNDi rose from 4.98 to 6.16 between 1991-2005 and 2006-2020. In terms of the aggregate network, Kasangulu ranked 12th out of 15 cities in Kongo-Central and 138th out of 186 in Democratic Republic of the Congo as of 2020.

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

What about similarly populated cities?

• Lemery, Philippines
• Bạc Liêu, Vietnam
• Settat, Morocco
• Damboa, Nigeria
• Xingtai, China
• Virudhunagar, India

In new street additions, Kasangulu and Lemery both built increasingly disconnected streets over time, while Damboa built increasingly connected streets from 1975 through 1976-1990, then shifted to more disconnected patterns. For the full network, Kasangulu and Lemery both became progressively more disconnected, while Damboa became more connected from 1975 through 1976-1990, then grew more sprawly from 1976-1990 onwards. Kasangulu and Lemery have been growing further apart in their street-network character since 1975.