N'zeto in context: Street-network sprawl trends

N'zeto 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
N'zetoZaire (Region)Angola (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with N'zeto plotted against Zaire and Angola. All three follow the same trend in new construction, suggesting a shared regional pattern of development. Most recently, N'zeto's incremental SNDi rose from 1.97 to 2.54 between 1991-2005 and 2006-2020. In terms of the aggregate network, N'zeto ranked 1st out of 4 cities in Zaire and 15th out of 56 in Angola as of 2020.

New Street Additions (2006–2020)

SNDi value
2.54
Rank in Angola
25th of 56
Rank in Zaire
2nd of 4

Entire Network (Aggregate)

SNDi value
1.98
Rank in Angola
15th of 56
Rank in Zaire
1st of 4

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

What about similarly populated cities?

1.42.12.83.5<19751976–19901991–20052006–2020SNDi of street additions
1.42.12.83.5<19751976–19901991–20052006–2020SNDi of entire street network
N'zetoIbambaKisenge

N'zeto, Ibamba, and Kisenge all built increasingly disconnected streets over time in new street construction. The same pattern holds for the full street network. Notably, N'zeto had a more sprawly network than Ibamba in 1975 but the two have since reversed their relative ranking.