Tarime in context: Street-network sprawl trends

Tarime in context

22.533.5<19751976–19901991–20052006–2020SNDi of street additions
22.533.5<19751976–19901991–20052006–2020SNDi of entire street network
TarimeMara (Region)Tanzania (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Tarime plotted against Mara and Tanzania. The SNDi of new construction in Tarime rose steadily, compared to Mara which peaked in 1991-2005 and Tanzania which was at its lowest in 1976-1990. Most recently, Tarime's incremental SNDi rose from 2.04 to 2.28 between 1991-2005 and 2006-2020. In terms of the aggregate network, Tarime ranked 1st out of 3 cities in Mara and 13th out of 45 in Tanzania as of 2020.

New Street Additions (2006–2020)

SNDi value
2.28
Rank in Tanzania
12th of 45
Rank in Mara
2nd of 3

Entire Network (Aggregate)

SNDi value
2.02
Rank in Tanzania
13th of 45
Rank in Mara
1st of 3

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

What about similarly populated cities?

0.91.82.73.6<19751976–19901991–20052006–2020SNDi of street additions
0.91.82.73.6<19751976–19901991–20052006–2020SNDi of entire street network
TarimePurainiYanxi

In new street additions, Tarime built increasingly disconnected streets over time, while Puraini fluctuated in its street-construction patterns and Yanxi fluctuated in its street-construction patterns. For the full network, Tarime became progressively more disconnected, while Puraini became progressively more disconnected and Yanxi became more connected from 1975 through 1976-1990, then grew more sprawly from 1976-1990 onwards. Notably, Tarime had a more connected network than Yanxi in 1975 but the two have since reversed their relative ranking.