Dundee in context: Street-network sprawl trends

Dundee in context

33.64.24.8<19751976–19901991–20052006–2020SNDi of street additions
33.64.24.8<19751976–19901991–20052006–2020SNDi of entire street network
DundeeScotland (Region)United Kingdom (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Dundee plotted against Scotland and United Kingdom. All three follow the same trend in new construction, suggesting a shared regional pattern of development. Most recently, Dundee's incremental SNDi fell from 3.74 to 3.72 between 1991-2005 and 2006-2020. In terms of the aggregate network, Dundee ranked 3rd out of 11 cities in Scotland and 22nd out of 143 in United Kingdom as of 2020.

New Street Additions (2006–2020)

SNDi value
3.72
Rank in United Kingdom
46th of 143
Rank in Scotland
6th of 11

Entire Network (Aggregate)

SNDi value
3.05
Rank in United Kingdom
22nd of 143
Rank in Scotland
3rd of 11

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

What about similarly populated cities?

1.42.12.83.5<19751976–19901991–20052006–2020SNDi of street additions
1.42.12.83.5<19751976–19901991–20052006–2020SNDi of entire street network
DundeeSalvaleon de HigueyDiepsloot

In new street additions, Dundee built increasingly disconnected streets from 1975 through 1991-2005, then improved, while Salvaleón de Higüey fluctuated in its street-construction patterns and Diepsloot built increasingly disconnected streets from 1975 through 1976-1990, then improved. For the full network, Dundee and Salvaleón de Higüey both became progressively more disconnected, while Diepsloot grew more disconnected from 1975 through 1991-2005, then improved. Dundee and Salvaleón de Higüey have been converging in their street-network character since 1975.