Tongaat in context: Street-network sprawl trends

Tongaat in context

345678<19751976–19901991–20052006–2020SNDi of street additions
345678<19751976–19901991–20052006–2020SNDi of entire street network
TongaatKwaZulu-Natal (Region)South Africa (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Tongaat plotted against KwaZulu-Natal and South Africa. All three follow the same trend in new construction, suggesting a shared regional pattern of development. Most recently, Tongaat's incremental SNDi rose from 6.02 to 7.6 between 1991-2005 and 2006-2020. In terms of the aggregate network, Tongaat ranked 7th out of 8 cities in KwaZulu-Natal and 77th out of 81 in South Africa as of 2020.

New Street Additions (2006–2020)

SNDi value
7.6
Rank in South Africa
78th of 81
Rank in KwaZulu-Natal
7th of 8

Entire Network (Aggregate)

SNDi value
5.49
Rank in South Africa
77th of 81
Rank in KwaZulu-Natal
7th of 8

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
TongaatAl-KafAnren

While Al-Kaf and Anren both fluctuated in its street-construction patterns, Tongaat built increasingly disconnected streets over time in new street additions. For the full street network, though, all three cities follow the same trend. Tongaat and Al-Kaf have been growing further apart in their street-network character since 1975.