Alfenas in context: Street-network sprawl trends

Alfenas in context

1.21.82.43<19751976–19901991–20052006–2020SNDi of street additions
1.21.82.43<19751976–19901991–20052006–2020SNDi of entire street network
AlfenasMinas Gerais (Region)Brazil (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Alfenas plotted against Minas Gerais and Brazil. The SNDi of new construction in Alfenas rose steadily, 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, Alfenas's incremental SNDi rose from 2.22 to 2.31 between 1991-2005 and 2006-2020. In terms of the aggregate network, Alfenas ranked 10th out of 49 cities in Minas Gerais and 84th out of 365 in Brazil as of 2020.

New Street Additions (2006–2020)

SNDi value
2.31
Rank in Brazil
88th of 365
Rank in Minas Gerais
10th of 49

Entire Network (Aggregate)

SNDi value
1.8
Rank in Brazil
84th of 365
Rank in Minas Gerais
10th of 49

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

What about similarly populated cities?

123456<19751976–19901991–20052006–2020SNDi of street additions
123456<19751976–19901991–20052006–2020SNDi of entire street network
AlfenasManakaraFassala

In new street additions, Alfenas built increasingly disconnected streets over time, while Manakara built increasingly disconnected streets from 1975 through 1991-2005, then improved and Fassala built increasingly connected streets from 1975 through 1976-1990, then shifted to more disconnected patterns. For the full network, Alfenas and Manakara both became progressively more disconnected, while Fassala became more connected from 1975 through 1991-2005, then grew more sprawly from 1991-2005 onwards. Alfenas and Manakara have been converging in their street-network character since 1975.