Elizabeth North in context: Street-network sprawl trends

Elizabeth North in context

2.43.244.8<19751976–19901991–20052006–2020SNDi of street additions
2.43.244.8<19751976–19901991–20052006–2020SNDi of entire street network
Elizabeth NorthSouth Australia (Region)Australia (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Elizabeth North plotted against South Australia and Australia. All three follow the same trend in new construction, suggesting a shared regional pattern of development. Most recently, Elizabeth North's incremental SNDi fell from 5.21 to 3.5 between 1991-2005 and 2006-2020. In terms of the aggregate network, Elizabeth North ranked 3rd out of 3 cities in South Australia and 22nd out of 35 in Australia as of 2020.

New Street Additions (2006–2020)

SNDi value
3.5
Rank in Australia
17th of 35
Rank in South Australia
2nd of 3

Entire Network (Aggregate)

SNDi value
3.73
Rank in Australia
22nd of 35
Rank in South Australia
3rd of 3

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

What about similarly populated cities?

12345<19751976–19901991–20052006–2020SNDi of street additions
12345<19751976–19901991–20052006–2020SNDi of entire street network
Elizabeth NorthMaya BelwaSimpang Ampat

In new street additions, Elizabeth North and Maya Belwa both built increasingly disconnected streets from 1975 through 1991-2005, then improved, while Simpang Ampat built increasingly disconnected streets over time. Looking at the full network, Maya Belwa and Simpang Ampat both became progressively more disconnected, while Elizabeth North grew more disconnected from 1975 through 1991-2005, then improved. Notably, Elizabeth North had a more sprawly network than Simpang Ampat in 1975 but the two have since reversed their relative ranking.