Rio Grande in context: Street-network sprawl trends

Rio Grande in context

11.522.5<19751976–19901991–20052006–2020SNDi of street additions
11.522.5<19751976–19901991–20052006–2020SNDi of entire street network
Rio GrandeTierra del Fuego (Region)Argentina (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Rio Grande plotted against Tierra del Fuego and Argentina. The SNDi of new construction in Rio Grande followed a zig-zag trend with an overall decrease, compared to Tierra del Fuego which peaked in 1976-1990 and Argentina which followed a zig-zag trend with an overall increase. Most recently, Rio Grande's incremental SNDi fell from 1.71 to 1.42 between 1991-2005 and 2006-2020. In terms of the aggregate network, Rio Grande ranked 1st out of 2 cities in Tierra del Fuego and 39th out of 77 in Argentina as of 2020.

New Street Additions (2006–2020)

SNDi value
1.42
Rank in Argentina
13th of 77
Rank in Tierra del Fuego
1st of 2

Entire Network (Aggregate)

SNDi value
1.52
Rank in Argentina
39th of 77
Rank in Tierra del Fuego
1st of 2

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

What about similarly populated cities?

0.91.82.73.6<19751976–19901991–20052006–2020SNDi of street additions
0.91.82.73.6<19751976–19901991–20052006–2020SNDi of entire street network
Rio GrandeLinhuIlo

While Linhu and Ilo both built increasingly connected streets from 1975 through 1991-2005, then shifted to more disconnected patterns, Rio Grande fluctuated in its street-construction patterns in new street additions. For the full network, Rio Grande fluctuated in connectivity, while Linhu became more connected from 1975 through 1991-2005, then grew more sprawly from 1991-2005 onwards and Ilo became progressively more connected. Rio Grande and Ilo have been converging in their street-network character since 1975.