Grande Prairie in context: Street-network sprawl trends

Grande Prairie 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
Grande PrairieAlberta (Region)Canada (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Grande Prairie plotted against Alberta and Canada. The SNDi of new construction in Grande Prairie peaked in 1991-2005, compared to Alberta which peaked in 1991-2005 and Canada which peaked in 1976-1990. Most recently, Grande Prairie's incremental SNDi fell from 3.16 to 2.37 between 1991-2005 and 2006-2020. In terms of the aggregate network, Grande Prairie ranked 4th out of 7 cities in Alberta and 35th out of 54 in Canada as of 2020.

New Street Additions (2006–2020)

SNDi value
2.37
Rank in Canada
9th of 54
Rank in Alberta
1st of 7

Entire Network (Aggregate)

SNDi value
2.84
Rank in Canada
35th of 54
Rank in Alberta
4th of 7

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
Grande PrairieTamacineChharodi

In new street additions, Grande Prairie built increasingly disconnected streets from 1975 through 1991-2005, then improved, while Tamacine built increasingly disconnected streets from 1975 through 1976-1990, then improved and Chharodi built increasingly disconnected streets over time. For the full network, Grande Prairie grew more disconnected from 1975 through 1991-2005, then improved, while Tamacine grew more disconnected from 1975 through 1976-1990, then improved and Chharodi became progressively more disconnected. Grande Prairie and Chharodi have been growing further apart in their street-network character since 1975.