Ndola in context: Street-network sprawl trends

Ndola in context

2.433.64.2<19751976–19901991–20052006–2020SNDi of street additions
2.433.64.2<19751976–19901991–20052006–2020SNDi of entire street network
NdolaCopperbelt (Region)Zambia (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Ndola plotted against Copperbelt and Zambia. All three follow the same trend in new construction, suggesting a shared regional pattern of development. Most recently, Ndola's incremental SNDi rose from 3.34 to 4.16 between 1991-2005 and 2006-2020. In terms of the aggregate network, Ndola ranked 4th out of 7 cities in Copperbelt and 15th out of 30 in Zambia as of 2020.

New Street Additions (2006–2020)

SNDi value
4.16
Rank in Zambia
20th of 30
Rank in Copperbelt
3rd of 7

Entire Network (Aggregate)

SNDi value
2.48
Rank in Zambia
15th of 30
Rank in Copperbelt
4th of 7

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

What about similarly populated cities?

1.82.73.6<19751976–19901991–20052006–2020SNDi of street additions
1.82.73.6<19751976–19901991–20052006–2020SNDi of entire street network
NdolaCheboksaryHeze

In new street additions, Ndola and Cheboksary both built increasingly disconnected streets over time, while Heze fluctuated in its street-construction patterns. For the full street network, though, all three cities follow the same trend. Ndola and Heze have been converging in their street-network character since 1975.