Rio das Ostras in context: Street-network sprawl trends

Rio das Ostras in context

2.43.244.8<19751976–19901991–20052006–2020SNDi of street additions
2.43.244.8<19751976–19901991–20052006–2020SNDi of entire street network
Rio das OstrasRio de Janeiro (Region)Brazil (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Rio das Ostras plotted against Rio de Janeiro and Brazil. The SNDi of new construction in Rio das Ostras rose steadily, compared to Rio de Janeiro which followed a zig-zag trend with an overall increase and Brazil which followed a zig-zag trend with an overall increase. Most recently, Rio das Ostras's incremental SNDi rose from 3.06 to 3.79 between 1991-2005 and 2006-2020. In terms of the aggregate network, Rio das Ostras ranked 8th out of 22 cities in Rio de Janeiro and 272nd out of 365 in Brazil as of 2020.

New Street Additions (2006–2020)

SNDi value
3.79
Rank in Brazil
237th of 365
Rank in Rio de Janeiro
8th of 22

Entire Network (Aggregate)

SNDi value
3.01
Rank in Brazil
272nd of 365
Rank in Rio de Janeiro
8th of 22

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
Rio das OstrasKashanTembilahan

In new street additions, Rio das Ostras built increasingly disconnected streets over time, while Kashan fluctuated in its street-construction patterns and Tembilahan fluctuated in its street-construction patterns. For the full network, Rio das Ostras and Tembilahan both became progressively more disconnected, while Kashan became progressively more connected. Rio das Ostras and Kashan have been converging in their street-network character since 1975.