Selebi Phikwe in context: Street-network sprawl trends

Selebi Phikwe in context

2.533.5<19751976–19901991–20052006–2020SNDi of street additions
2.533.5<19751976–19901991–20052006–2020SNDi of entire street network
Selebi PhikweSelibe Phikwe (Region)Botswana (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Selebi Phikwe plotted against Selibe Phikwe and Botswana. While Selibe Phikwe and Botswana both peaked in 1991-2005, Selebi Phikwe's new street additions peaked in 1991-2005. Most recently, Selebi Phikwe's incremental SNDi fell from 3.2 to 3.11 between 1991-2005 and 2006-2020. In terms of the aggregate network, Selebi Phikwe ranked 1st out of 1 cities in Selibe Phikwe and 4th out of 7 in Botswana as of 2020.

New Street Additions (2006–2020)

SNDi value
3.11
Rank in Botswana
5th of 7
Rank in Selibe Phikwe
1st of 1

Entire Network (Aggregate)

SNDi value
2.69
Rank in Botswana
4th of 7
Rank in Selibe Phikwe
1st of 1

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

What about similarly populated cities?

1.21.82.433.6<19751976–19901991–20052006–2020SNDi of street additions
1.21.82.433.6<19751976–19901991–20052006–2020SNDi of entire street network
Selebi PhikweTanguietaMahalah Zeyad

In new street additions, Selebi Phikwe built increasingly disconnected streets from 1975 through 1991-2005, then improved, while Tanguieta fluctuated in its street-construction patterns and Mahalah Zeyad built increasingly disconnected streets over time. For the full street network, though, all three cities follow the same trend.