Mbalizi in context: Street-network sprawl trends

Mbalizi in context

2.62.833.23.4<19751976–19901991–20052006–2020SNDi of street additions
2.62.833.23.4<19751976–19901991–20052006–2020SNDi of entire street network
MbaliziMbeya (Region)Tanzania (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Mbalizi plotted against Mbeya and Tanzania. The SNDi of new construction in Mbalizi followed a zig-zag trend with an overall increase, compared to Mbeya which was at its lowest in 1991-2005 and Tanzania which was at its lowest in 1976-1990. Most recently, Mbalizi's incremental SNDi rose from 2.82 to 3.27 between 1991-2005 and 2006-2020. In terms of the aggregate network, Mbalizi ranked 3rd out of 3 cities in Mbeya and 32nd out of 45 in Tanzania as of 2020.

New Street Additions (2006–2020)

SNDi value
3.27
Rank in Tanzania
28th of 45
Rank in Mbeya
2nd of 3

Entire Network (Aggregate)

SNDi value
2.74
Rank in Tanzania
32nd of 45
Rank in Mbeya
3rd of 3

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

What about similarly populated cities?

2.73.64.55.4<19751976–19901991–20052006–2020SNDi of street additions
2.73.64.55.4<19751976–19901991–20052006–2020SNDi of entire street network
MbaliziMustafabadSanhe

In new street additions, Mbalizi and Sanhe both fluctuated in its street-construction patterns, while Mustafabad fluctuated in its street-construction patterns. For the full network, Mbalizi and Sanhe both became progressively more disconnected, while Mustafabad became progressively more connected. Notably, Mbalizi had a more sprawly network than Sanhe in 1975 but the two have since reversed their relative ranking.