Ermelo in context: Street-network sprawl trends

Ermelo in context

2.43.24<19751976–19901991–20052006–2020SNDi of street additions
2.43.24<19751976–19901991–20052006–2020SNDi of entire street network
ErmeloMpumalanga (Region)South Africa (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Ermelo plotted against Mpumalanga and South Africa. All three follow the same trend in new construction, suggesting a shared regional pattern of development. Most recently, Ermelo's incremental SNDi rose from 3.34 to 3.6 between 1991-2005 and 2006-2020. In terms of the aggregate network, Ermelo ranked 5th out of 13 cities in Mpumalanga and 22nd out of 81 in South Africa as of 2020.

New Street Additions (2006–2020)

SNDi value
3.6
Rank in South Africa
40th of 81
Rank in Mpumalanga
6th of 13

Entire Network (Aggregate)

SNDi value
2.83
Rank in South Africa
22nd of 81
Rank in Mpumalanga
5th of 13

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

What about similarly populated cities?

23456<19751976–19901991–20052006–2020SNDi of street additions
23456<19751976–19901991–20052006–2020SNDi of entire street network
ErmeloSidiangkatKorem

Ermelo, Sidiangkat, and Korem all built increasingly disconnected streets over time in new street construction. The same pattern holds for the full street network. Ermelo and Korem have been growing further apart in their street-network character since 1975.