Chipata in context: Street-network sprawl trends

Chipata in context

2.73.64.55.4<19751976–19901991–20052006–2020SNDi of street additions
2.73.64.55.4<19751976–19901991–20052006–2020SNDi of entire street network
ChipataEastern (Region)Zambia (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Chipata plotted against Eastern and Zambia. All three follow the same trend in new construction, suggesting a shared regional pattern of development. Most recently, Chipata's incremental SNDi rose from 3.98 to 5.18 between 1991-2005 and 2006-2020. In terms of the aggregate network, Chipata ranked 3rd out of 3 cities in Eastern and 28th out of 30 in Zambia as of 2020.

New Street Additions (2006–2020)

SNDi value
5.18
Rank in Zambia
27th of 30
Rank in Eastern
3rd of 3

Entire Network (Aggregate)

SNDi value
3.49
Rank in Zambia
28th of 30
Rank in Eastern
3rd of 3

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

What about similarly populated cities?

2468<19751976–19901991–20052006–2020SNDi of street additions
2468<19751976–19901991–20052006–2020SNDi of entire street network
ChipataTan ChauXishui County

In new street additions, Chipata built increasingly disconnected streets over time, while Tân Châu built increasingly disconnected streets from 1975 through 1976-1990, then improved and Xishui County built increasingly disconnected streets from 1975 through 1991-2005, then improved. Looking at the full network, Tân Châu and Xishui County both grew more disconnected from 1975 through 1991-2005, then improved, while Chipata became progressively more disconnected. Chipata and Xishui County have been growing further apart in their street-network character since 1975.