Río Gallegos in context: Street-network sprawl trends

Rio Gallegos in context

11.522.53<19751976–19901991–20052006–2020SNDi of street additions
11.522.53<19751976–19901991–20052006–2020SNDi of entire street network
Rio GallegosSanta Cruz (Region)Argentina (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Río Gallegos plotted against Santa Cruz and Argentina. All three follow the same trend in new construction, suggesting a shared regional pattern of development. Most recently, Río Gallegos's incremental SNDi rose from 1.09 to 1.65 between 1991-2005 and 2006-2020. In terms of the aggregate network, Río Gallegos ranked 1st out of 2 cities in Santa Cruz and 11th out of 77 in Argentina as of 2020.

New Street Additions (2006–2020)

SNDi value
1.65
Rank in Argentina
27th of 77
Rank in Santa Cruz
2nd of 2

Entire Network (Aggregate)

SNDi value
1.18
Rank in Argentina
11th of 77
Rank in Santa Cruz
1st of 2

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

What about similarly populated cities?

1.21.82.43<19751976–19901991–20052006–2020SNDi of street additions
1.21.82.43<19751976–19901991–20052006–2020SNDi of entire street network
Rio GallegosXiushanShanggao

While Xiushan and Shanggao both built increasingly disconnected streets from 1975 through 1976-1990, then improved, Río Gallegos fluctuated in its street-construction patterns in new street additions. For the full network, Río Gallegos fluctuated in connectivity, while Xiushan grew more disconnected from 1975 through 1976-1990, then improved and Shanggao grew more disconnected from 1975 through 1991-2005, then improved. Río Gallegos and Shanggao have been growing further apart in their street-network character since 1975.