Timberlea in context: Street-network sprawl trends

Timberlea in context

2.42.83.23.6<19751976–19901991–20052006–2020SNDi of street additions
2.42.83.23.6<19751976–19901991–20052006–2020SNDi of entire street network
TimberleaAlberta (Region)Canada (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Timberlea plotted against Alberta and Canada. The SNDi of new construction in Timberlea was at its lowest in 1991-2005, compared to Alberta which peaked in 1991-2005 and Canada which peaked in 1976-1990. Most recently, Timberlea's incremental SNDi rose from 3.01 to 3.05 between 1991-2005 and 2006-2020. In terms of the aggregate network, Timberlea ranked 7th out of 7 cities in Alberta and 50th out of 54 in Canada as of 2020.

New Street Additions (2006–2020)

SNDi value
3.05
Rank in Canada
19th of 54
Rank in Alberta
3rd of 7

Entire Network (Aggregate)

SNDi value
3.46
Rank in Canada
50th of 54
Rank in Alberta
7th of 7

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

What about similarly populated cities?

3456<19751976–19901991–20052006–2020SNDi of street additions
3456<19751976–19901991–20052006–2020SNDi of entire street network
TimberleaGwanduHelensvale

In new street additions, Timberlea built increasingly connected streets from 1975 through 1991-2005, then shifted to more disconnected patterns, while Gwandu fluctuated in its street-construction patterns and Helensvale built increasingly connected streets over time. For the full network, Timberlea and Helensvale both became progressively more connected, while Gwandu fluctuated in connectivity. Timberlea and Gwandu have been converging in their street-network character since 1975.