Sunshine Coast in context: Street-network sprawl trends

Sunshine Coast in context

3456<19751976–19901991–20052006–2020SNDi of street additions
3456<19751976–19901991–20052006–2020SNDi of entire street network
Sunshine CoastQueensland (Region)Australia (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Sunshine Coast plotted against Queensland and Australia. All three follow the same trend in new construction, suggesting a shared regional pattern of development. Most recently, Sunshine Coast's incremental SNDi fell from 6.14 to 5.11 between 1991-2005 and 2006-2020. In terms of the aggregate network, Sunshine Coast ranked 11th out of 13 cities in Queensland and 33rd out of 35 in Australia as of 2020.

New Street Additions (2006–2020)

SNDi value
5.11
Rank in Australia
34th of 35
Rank in Queensland
12th of 13

Entire Network (Aggregate)

SNDi value
4.77
Rank in Australia
33rd of 35
Rank in Queensland
11th of 13

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

What about similarly populated cities?

246<19751976–19901991–20052006–2020SNDi of street additions
246<19751976–19901991–20052006–2020SNDi of entire street network
Sunshine CoastAsendaboTouboro

In new street additions, Sunshine Coast built increasingly disconnected streets from 1975 through 1991-2005, then improved, while Asendabo built increasingly disconnected streets over time and Touboro fluctuated in its street-construction patterns. For the full network, Sunshine Coast and Asendabo both became progressively more disconnected, while Touboro fluctuated in connectivity. Sunshine Coast and Touboro have been growing further apart in their street-network character since 1975.