Bondo 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 Bondo plotted against Bas-Uele and Democratic Republic of the Congo. The SNDi of new construction in Bondo peaked in 1991-2005, compared to Bas-Uele which followed a zig-zag trend with an overall increase and Democratic Republic of the Congo which followed a zig-zag trend with an overall increase. Most recently, Bondo's incremental SNDi fell from 3.35 to 3.29 between 1991-2005 and 2006-2020. In terms of the aggregate network, Bondo ranked 2nd out of 4 cities in Bas-Uele and 36th 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?

• Lanshan, China
• Damagum, Nigeria
• Qianyu, China
• Sinko, Guinea
• Gaolong, China
• Bomadi, Nigeria

In new street additions, Bondo and Sinko both built increasingly disconnected streets from 1975 through 1991-2005, then improved, while Lanshan fluctuated in its street-construction patterns. For the full street network, though, all three cities follow the same trend. Bondo and Lanshan have been converging in their street-network character since 1975.