Americana in context: Street-network sprawl trends

Americana in context

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
AmericanaSao Paulo (Region)Brazil (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Americana plotted against São Paulo and Brazil. While São Paulo and Brazil both followed a zig-zag trend with an overall increase, Americana's new street additions followed a zig-zag trend with an overall increase. Most recently, Americana's incremental SNDi rose from 2.23 to 3.12 between 1991-2005 and 2006-2020. In terms of the aggregate network, Americana ranked 30th out of 76 cities in São Paulo and 118th out of 365 in Brazil as of 2020.

New Street Additions (2006–2020)

SNDi value
3.12
Rank in Brazil
169th of 365
Rank in São Paulo
32nd of 76

Entire Network (Aggregate)

SNDi value
1.99
Rank in Brazil
118th of 365
Rank in São Paulo
30th of 76

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

What about similarly populated cities?

1.522.53<19751976–19901991–20052006–2020SNDi of street additions
1.522.53<19751976–19901991–20052006–2020SNDi of entire street network
AmericanaTallinnUlyanovsk

In new street additions, Tallinn and Ulyanovsk both built increasingly disconnected streets over time, while Americana fluctuated in street-construction patterns. For the full street network, though, all three cities follow the same trend. Notably, Americana had a more connected network than Ulyanovsk in 1975, but the two have since reversed their relative ranking.