Terrebonne in context: Street-network sprawl trends

Terrebonne 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
TerrebonneQuebec (Region)Canada (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Terrebonne plotted against Québec and Canada. The SNDi of new construction in Terrebonne rose steadily, compared to Québec which followed a zig-zag trend with an overall increase and Canada which peaked in 1976-1990. Most recently, Terrebonne's incremental SNDi rose from 4.54 to 4.92 between 1991-2005 and 2006-2020. In terms of the aggregate network, Terrebonne ranked 9th out of 10 cities in Québec and 53rd out of 54 in Canada as of 2020.

New Street Additions (2006–2020)

SNDi value
4.92
Rank in Canada
49th of 54
Rank in Québec
8th of 10

Entire Network (Aggregate)

SNDi value
3.67
Rank in Canada
53rd of 54
Rank in Québec
9th of 10

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

What about similarly populated cities?

2345<19751976–19901991–20052006–2020SNDi of street additions
2345<19751976–19901991–20052006–2020SNDi of entire street network
TerrebonneGongHarqin Zuoyi

While Gong and Harqin Zuoyi both built increasingly disconnected streets from 1975 through 1976-1990, then improved, Terrebonne built increasingly disconnected streets over time in new street additions. For the full network, Terrebonne became progressively more disconnected, while Gong grew more disconnected from 1975 through 1976-1990, then improved and Harqin Zuoyi grew more disconnected from 1975 through 1991-2005, then improved. Terrebonne and Gong have been growing further apart in their street-network character since 1975.