Itaguaí in context: Street-network sprawl trends

Itaguai in context

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
ItaguaiRio de Janeiro (Region)Brazil (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Itaguaí plotted against Rio de Janeiro and Brazil. All three follow the same trend in new construction, suggesting a shared regional pattern of development. Most recently, Itaguaí's incremental SNDi rose from 2.51 to 3.68 between 1991-2005 and 2006-2020. In terms of the aggregate network, Itaguaí ranked 1st out of 22 cities in Rio de Janeiro and 199th out of 365 in Brazil as of 2020.

New Street Additions (2006–2020)

SNDi value
3.68
Rank in Brazil
228th of 365
Rank in Rio de Janeiro
6th of 22

Entire Network (Aggregate)

SNDi value
2.43
Rank in Brazil
199th of 365
Rank in Rio de Janeiro
1st of 22

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
ItaguaiNzagiJiangchuan

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