Mumbwa in context: Street-network sprawl trends

Mumbwa in context

2.43.24<19751976–19901991–20052006–2020SNDi of street additions
2.43.24<19751976–19901991–20052006–2020SNDi of entire street network
MumbwaCentral (Region)Zambia (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Mumbwa plotted against Central and Zambia. All three follow the same trend in new construction, suggesting a shared regional pattern of development. Most recently, Mumbwa's incremental SNDi rose from 2.64 to 2.97 between 1991-2005 and 2006-2020. In terms of the aggregate network, Mumbwa ranked 1st out of 3 cities in Central and 11th out of 30 in Zambia as of 2020.

New Street Additions (2006–2020)

SNDi value
2.97
Rank in Zambia
12th of 30
Rank in Central
1st of 3

Entire Network (Aggregate)

SNDi value
2.33
Rank in Zambia
11th of 30
Rank in Central
1st of 3

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
MumbwaRengatDahura

In new street additions, Mumbwa and Rengat both built increasingly disconnected streets over time, while Dahura fluctuated in its street-construction patterns. For the full network, Mumbwa and Rengat both became progressively more disconnected, while Dahura fluctuated in connectivity. Mumbwa and Rengat have been growing further apart in their street-network character since 1975.