Chingola in context: Street-network sprawl trends

Chingola 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
ChingolaCopperbelt (Region)Zambia (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Chingola plotted against Copperbelt and Zambia. All three follow the same trend in new construction, suggesting a shared regional pattern of development. Most recently, Chingola's incremental SNDi rose from 3.2 to 4.26 between 1991-2005 and 2006-2020. In terms of the aggregate network, Chingola ranked 5th out of 7 cities in Copperbelt and 20th out of 30 in Zambia as of 2020.

New Street Additions (2006–2020)

SNDi value
4.26
Rank in Zambia
22nd of 30
Rank in Copperbelt
5th of 7

Entire Network (Aggregate)

SNDi value
2.71
Rank in Zambia
20th of 30
Rank in Copperbelt
5th of 7

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

What about similarly populated cities?

3456<19751976–19901991–20052006–2020SNDi of street additions
3456<19751976–19901991–20052006–2020SNDi of entire street network
ChingolaPhan ThietDiamond Harbour

In new street additions, Chingola built increasingly disconnected streets over time, while Phan Thiết built increasingly disconnected streets from 1975 through 1976-1990, then improved and Diamond Harbour fluctuated in its street-construction patterns. For the full network, Chingola became progressively more disconnected, while Phan Thiết grew more disconnected from 1975 through 1976-1990, then improved and Diamond Harbour fluctuated in connectivity.