Formosa in context: Street-network sprawl trends

Formosa 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
FormosaGoias (Region)Brazil (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Formosa plotted against Goiás and Brazil. All three follow the same trend in new construction, suggesting a shared regional pattern of development. Most recently, Formosa's incremental SNDi rose from 1.36 to 1.88 between 1991-2005 and 2006-2020. In terms of the aggregate network, Formosa ranked 7th out of 17 cities in Goiás and 29th out of 365 in Brazil as of 2020.

New Street Additions (2006–2020)

SNDi value
1.88
Rank in Brazil
41st of 365
Rank in Goiás
9th of 17

Entire Network (Aggregate)

SNDi value
1.48
Rank in Brazil
29th of 365
Rank in Goiás
7th of 17

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

What about similarly populated cities?

2468<19751976–19901991–20052006–2020SNDi of street additions
2468<19751976–19901991–20052006–2020SNDi of entire street network
FormosaPattanQiaojia

In new street additions, Formosa fluctuated in its street-construction patterns, while Pattan built increasingly connected streets from 1975 through 1976-1990, then shifted to more disconnected patterns and Qiaojia built increasingly connected streets over time. For the full network, Formosa fluctuated in connectivity, while Pattan became more connected from 1975 through 1991-2005, then grew more sprawly from 1991-2005 onwards and Qiaojia became progressively more connected.