Ibamba in context: Street-network sprawl trends

Ibamba in context

1.522.533.5<19751976–19901991–20052006–2020SNDi of street additions
1.522.533.5<19751976–19901991–20052006–2020SNDi of entire street network
IbambaGeita (Region)Tanzania (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Ibamba plotted against Geita and Tanzania. The SNDi of new construction in Ibamba rose steadily, compared to Geita which was at its lowest in 1976-1990 and Tanzania which was at its lowest in 1976-1990. Most recently, Ibamba's incremental SNDi rose from 1.99 to 2.31 between 1991-2005 and 2006-2020. In terms of the aggregate network, Ibamba ranked 3rd out of 5 cities in Geita and 14th out of 45 in Tanzania as of 2020.

New Street Additions (2006–2020)

SNDi value
2.31
Rank in Tanzania
15th of 45
Rank in Geita
4th of 5

Entire Network (Aggregate)

SNDi value
2.08
Rank in Tanzania
14th of 45
Rank in Geita
3rd of 5

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
IbambaTshibindaN'zeto

In new street additions, Ibamba and N'zeto both built increasingly disconnected streets over time, while Tshibinda fluctuated in its street-construction patterns. For the full street network, though, all three cities follow the same trend. Notably, Ibamba had a more connected network than N'zeto in 1975 but the two have since reversed their relative ranking.