Lukala in context: Street-network sprawl trends

Lukala in context

2.12.83.54.2<19751976–19901991–20052006–2020SNDi of street additions
2.12.83.54.2<19751976–19901991–20052006–2020SNDi of entire street network
LukalaKongo-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 Lukala plotted against Kongo-Central and Democratic Republic of the Congo. The SNDi of new construction in Lukala 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, Lukala's incremental SNDi fell from 3.98 to 3.77 between 1991-2005 and 2006-2020. In terms of the aggregate network, Lukala ranked 8th out of 15 cities in Kongo-Central and 106th out of 186 in Democratic Republic of the Congo as of 2020.

New Street Additions (2006–2020)

SNDi value
3.77
Rank in Democratic Republic of the Congo
83rd of 186
Rank in Kongo-Central
8th of 15

Entire Network (Aggregate)

SNDi value
3.47
Rank in Democratic Republic of the Congo
106th of 186
Rank in Kongo-Central
8th of 15

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

What about similarly populated cities?

1.62.43.24<19751976–19901991–20052006–2020SNDi of street additions
1.62.43.24<19751976–19901991–20052006–2020SNDi of entire street network
LukalaM'DiqPebane

In new street additions, Lukala built increasingly disconnected streets from 1975 through 1991-2005, then improved, while M'Diq built increasingly connected streets from 1975 through 1976-1990, then shifted to more disconnected patterns and Pebane fluctuated in its street-construction patterns. For the full network, Lukala became progressively more disconnected, while M'Diq became more connected from 1975 through 1976-1990, then grew more sprawly from 1976-1990 onwards and Pebane fluctuated in connectivity.