Picha Ya Ndege in context: Street-network sprawl trends

Picha Ya Ndege in context

2.42.83.2<19751976–19901991–20052006–2020SNDi of street additions
2.42.83.2<19751976–19901991–20052006–2020SNDi of entire street network
Picha Ya NdegePwani (Region)Tanzania (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Picha Ya Ndege plotted against Pwani and Tanzania. The SNDi of new construction in Picha Ya Ndege rose steadily, compared to Pwani which rose steadily and Tanzania which was at its lowest in 1976-1990. Most recently, Picha Ya Ndege's incremental SNDi rose from 2.87 to 3.28 between 1991-2005 and 2006-2020. In terms of the aggregate network, Picha Ya Ndege ranked 2nd out of 2 cities in Pwani and 33rd out of 45 in Tanzania as of 2020.

New Street Additions (2006–2020)

SNDi value
3.28
Rank in Tanzania
29th of 45
Rank in Pwani
2nd of 2

Entire Network (Aggregate)

SNDi value
2.77
Rank in Tanzania
33rd of 45
Rank in Pwani
2nd of 2

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
Picha Ya NdegeLueyangKafr al Bashbishah

In new street additions, Picha Ya Ndege built increasingly disconnected streets over time, while Lüeyang built increasingly connected streets over time and Kafr al Bashbishah fluctuated in its street-construction patterns. For the full network, Picha Ya Ndege and Kafr al Bashbishah both became progressively more disconnected, while Lüeyang became progressively more connected. Picha Ya Ndege and Kafr al Bashbishah have been converging in their street-network character since 1975.