Kwilu-Ngongo in context: Street-network sprawl trends

Kwilu-Ngongo in context

23456<19751976–19901991–20052006–2020SNDi of street additions
23456<19751976–19901991–20052006–2020SNDi of entire street network
Kwilu-NgongoKongo-Central (Region)Democratic Republic of the Congo (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Kwilu-Ngongo plotted against Kongo-Central and Democratic Republic of the Congo. The SNDi of new construction in Kwilu-Ngongo peaked in 1991-2005, 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, Kwilu-Ngongo's incremental SNDi fell from 5.97 to 3.87 between 1991-2005 and 2006-2020. In terms of the aggregate network, Kwilu-Ngongo ranked 14th out of 15 cities in Kongo-Central and 143rd out of 186 in Democratic Republic of the Congo as of 2020.

New Street Additions (2006–2020)

SNDi value
3.87
Rank in Democratic Republic of the Congo
89th of 186
Rank in Kongo-Central
9th of 15

Entire Network (Aggregate)

SNDi value
4.48
Rank in Democratic Republic of the Congo
143rd of 186
Rank in Kongo-Central
14th of 15

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

What about similarly populated cities?

23456<19751976–19901991–20052006–2020SNDi of street additions
23456<19751976–19901991–20052006–2020SNDi of entire street network
Kwilu-NgongoKayanBaia Mare

In new street additions, Kwilu-Ngongo built increasingly disconnected streets from 1975 through 1991-2005, then improved, while Kayan fluctuated in its street-construction patterns and Baia Mare built increasingly disconnected streets over time. For the full network, Kwilu-Ngongo grew more disconnected from 1975 through 1991-2005, then improved, while Kayan fluctuated in connectivity and Baia Mare became progressively more disconnected.