Tucuruí in context: Street-network sprawl trends

Tucurui in context

2.42.83.23.6<19751976–19901991–20052006–2020SNDi of street additions
2.42.83.23.6<19751976–19901991–20052006–2020SNDi of entire street network
TucuruiPara (Region)Brazil (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Tucuruí plotted against Pará and Brazil. The SNDi of new construction in Tucuruí peaked in 1976-1990, compared to Pará which peaked in 1976-1990 and Brazil which followed a zig-zag trend with an overall increase. Most recently, Tucuruí's incremental SNDi fell from 2.89 to 2.65 between 1991-2005 and 2006-2020. In terms of the aggregate network, Tucuruí ranked 13th out of 16 cities in Pará and 228th out of 365 in Brazil as of 2020.

New Street Additions (2006–2020)

SNDi value
2.65
Rank in Brazil
117th of 365
Rank in Pará
8th of 16

Entire Network (Aggregate)

SNDi value
2.65
Rank in Brazil
228th of 365
Rank in Pará
13th of 16

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

What about similarly populated cities?

2.433.64.2<19751976–19901991–20052006–2020SNDi of street additions
2.433.64.2<19751976–19901991–20052006–2020SNDi of entire street network
TucuruiMianehStevenage

In new street additions, Tucuruí built increasingly disconnected streets from 1975 through 1976-1990, then improved, while Mianeh built increasingly connected streets from 1975 through 1976-1990, then shifted to more disconnected patterns and Stevenage built increasingly disconnected streets over time. For the full network, Tucuruí grew more disconnected from 1975 through 1991-2005, then improved, while Mianeh became more connected from 1975 through 1976-1990, then grew more sprawly from 1976-1990 onwards and Stevenage became progressively more disconnected. Notably, Tucuruí had a more sprawly network than Mianeh in 1975 but the two have since reversed their relative ranking.