Nyangezi 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 Nyangezi plotted against Sud-Kivu and Democratic Republic of the Congo. The SNDi of new construction in Nyangezi was at its lowest in 1976-1990, compared to Sud-Kivu 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, Nyangezi's incremental SNDi rose from 5.52 to 6.28 between 1991-2005 and 2006-2020. In terms of the aggregate network, Nyangezi ranked 8th out of 12 cities in Sud-Kivu and 163rd 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?

• Corby, United Kingdom
• Birote, Pakistan
• Vigevano, Italy
• Nalagarh, India
• San Luis, México
• Düziçi, Turkey

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