Peterborough in context: Street-network sprawl trends

Peterborough in context

1.82.433.6<19751976–19901991–20052006–2020SNDi of street additions
1.82.433.6<19751976–19901991–20052006–2020SNDi of entire street network
PeterboroughOntario (Region)Canada (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Peterborough plotted against Ontario and Canada. The SNDi of new construction in Peterborough followed a zig-zag trend with an overall increase, compared to Ontario which peaked in 1976-1990 and Canada which peaked in 1976-1990. Most recently, Peterborough's incremental SNDi rose from 2.32 to 2.85 between 1991-2005 and 2006-2020. In terms of the aggregate network, Peterborough ranked 1st out of 24 cities in Ontario and 1st out of 54 in Canada as of 2020.

New Street Additions (2006–2020)

SNDi value
2.85
Rank in Canada
15th of 54
Rank in Ontario
11th of 24

Entire Network (Aggregate)

SNDi value
2.02
Rank in Canada
1st of 54
Rank in Ontario
1st of 24

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

What about similarly populated cities?

23456<19751976–19901991–20052006–2020SNDi of street additions
23456<19751976–19901991–20052006–2020SNDi of entire street network
PeterboroughKhirz SaraiPen

Peterborough, Khirz Sarai, and Pen all fluctuated in its street-construction patterns in new street construction. Looking at the full network, Khirz Sarai and Pen both fluctuated in connectivity, while Peterborough became progressively more disconnected.