Cabo Frio in context: Street-network sprawl trends

Cabo Frio 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
Cabo FrioRio de Janeiro (Region)Brazil (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Cabo Frio plotted against Rio de Janeiro and Brazil. The SNDi of new construction in Cabo Frio peaked in 1976-1990, 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, Cabo Frio's incremental SNDi fell from 3.31 to 3.28 between 1991-2005 and 2006-2020. In terms of the aggregate network, Cabo Frio ranked 6th out of 22 cities in Rio de Janeiro and 259th out of 365 in Brazil as of 2020.

New Street Additions (2006–2020)

SNDi value
3.28
Rank in Brazil
191st of 365
Rank in Rio de Janeiro
4th of 22

Entire Network (Aggregate)

SNDi value
2.89
Rank in Brazil
259th of 365
Rank in Rio de Janeiro
6th of 22

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

What about similarly populated cities?

1.82.433.6<19751976–19901991–20052006–2020SNDi of street additions
1.82.433.6<19751976–19901991–20052006–2020SNDi of entire street network
Cabo FrioXiaoyiAnning

In new street additions, Cabo Frio and Xiaoyi both built increasingly disconnected streets from 1975 through 1976-1990, then improved, while Anning fluctuated in its street-construction patterns. For the full network, Cabo Frio and Anning both became progressively more disconnected, while Xiaoyi grew more disconnected from 1975 through 1976-1990, then improved. Cabo Frio and Xiaoyi have been converging in their street-network character since 1975.