Polvilho in context: Street-network sprawl trends

Polvilho in context

2.73.64.5<19751976–19901991–20052006–2020SNDi of street additions
2.73.64.5<19751976–19901991–20052006–2020SNDi of entire street network
PolvilhoSao Paulo (Region)Brazil (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Polvilho plotted against São Paulo and Brazil. The SNDi of new construction in Polvilho peaked in 1991-2005, compared to São Paulo which rose steadily and Brazil which followed a zig-zag trend with an overall increase. Most recently, Polvilho's incremental SNDi fell from 5.03 to 4.26 between 1991-2005 and 2006-2020. In terms of the aggregate network, Polvilho ranked 75th out of 76 cities in São Paulo and 352nd out of 365 in Brazil as of 2020.

New Street Additions (2006–2020)

SNDi value
4.26
Rank in Brazil
271st of 365
Rank in São Paulo
51st of 76

Entire Network (Aggregate)

SNDi value
4.72
Rank in Brazil
352nd of 365
Rank in São Paulo
75th of 76

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

What about similarly populated cities?

1.82.73.64.5<19751976–19901991–20052006–2020SNDi of street additions
1.82.73.64.5<19751976–19901991–20052006–2020SNDi of entire street network
PolvilhoQebchaqLafayette

In new street additions, Polvilho and Lafayette both built increasingly disconnected streets from 1975 through 1991-2005, then improved, while Qebchaq fluctuated in its street-construction patterns. For the full network, Polvilho grew more disconnected from 1975 through 1991-2005, then improved, while Qebchaq fluctuated in connectivity and Lafayette became progressively more disconnected. Polvilho and Qebchaq have been growing further apart in their street-network character since 1975.