Luiza in context: Street-network sprawl trends

Luiza in context

2468<19751976–19901991–20052006–2020SNDi of street additions
2468<19751976–19901991–20052006–2020SNDi of entire street network
LuizaKasai-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 Luiza plotted against Kasaï-Central and Democratic Republic of the Congo. The SNDi of new construction in Luiza rose steadily, compared to Kasaï-Central which rose steadily and Democratic Republic of the Congo which followed a zig-zag trend with an overall increase. Most recently, Luiza's incremental SNDi rose from 2.39 to 3.65 between 1991-2005 and 2006-2020. In terms of the aggregate network, Luiza ranked 1st out of 6 cities in Kasaï-Central and 32nd out of 186 in Democratic Republic of the Congo as of 2020.

New Street Additions (2006–2020)

SNDi value
3.65
Rank in Democratic Republic of the Congo
72nd of 186
Rank in Kasaï-Central
4th of 6

Entire Network (Aggregate)

SNDi value
2.11
Rank in Democratic Republic of the Congo
32nd of 186
Rank in Kasaï-Central
1st of 6

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

What about similarly populated cities?

0.81.62.43.2<19751976–19901991–20052006–2020SNDi of street additions
0.81.62.43.2<19751976–19901991–20052006–2020SNDi of entire street network
LuizaItuiutabaAraxa

Luiza, Ituiutaba, and Araxá all built increasingly disconnected streets over time in new street construction. The same pattern holds for the full street network. Notably, Luiza had a more connected network than Araxá in 1975 but the two have since reversed their relative ranking.