Santa Luzia in context: Street-network sprawl trends

Santa Luzia in context

22.42.83.2<19751976–19901991–20052006–2020SNDi of street additions
22.42.83.2<19751976–19901991–20052006–2020SNDi of entire street network
Santa LuziaMinas Gerais (Region)Brazil (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Santa Luzia plotted against Minas Gerais and Brazil. The SNDi of new construction in Santa Luzia peaked in 1991-2005, compared to Minas Gerais which followed a zig-zag trend with an overall increase and Brazil which followed a zig-zag trend with an overall increase. Most recently, Santa Luzia's incremental SNDi fell from 3.4 to 3.15 between 1991-2005 and 2006-2020. In terms of the aggregate network, Santa Luzia ranked 37th out of 49 cities in Minas Gerais and 287th out of 365 in Brazil as of 2020.

New Street Additions (2006–2020)

SNDi value
3.15
Rank in Brazil
172nd of 365
Rank in Minas Gerais
21st of 49

Entire Network (Aggregate)

SNDi value
3.22
Rank in Brazil
287th of 365
Rank in Minas Gerais
37th of 49

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

What about similarly populated cities?

2345<19751976–19901991–20052006–2020SNDi of street additions
2345<19751976–19901991–20052006–2020SNDi of entire street network
Santa LuziaVeniceAmpana

In new street additions, Santa Luzia and Venice both built increasingly disconnected streets from 1975 through 1991-2005, then improved, while Ampana built increasingly disconnected streets over time. For the full street network, though, all three cities follow the same trend. Notably, Santa Luzia had a more sprawly network than Ampana in 1975 but the two have since reversed their relative ranking.