Coari in context: Street-network sprawl trends

Coari in context

23456<19751976–19901991–20052006–2020SNDi of street additions
23456<19751976–19901991–20052006–2020SNDi of entire street network
CoariAmazonas (Region)Brazil (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Coari plotted against Amazonas and Brazil. The SNDi of new construction in Coari rose steadily, compared to Amazonas which followed a zig-zag trend with an overall increase and Brazil which followed a zig-zag trend with an overall increase. Most recently, Coari's incremental SNDi rose from 5.78 to 6.43 between 1991-2005 and 2006-2020. In terms of the aggregate network, Coari ranked 5th out of 6 cities in Amazonas and 342nd out of 365 in Brazil as of 2020.

New Street Additions (2006–2020)

SNDi value
6.43
Rank in Brazil
348th of 365
Rank in Amazonas
5th of 6

Entire Network (Aggregate)

SNDi value
4.15
Rank in Brazil
342nd of 365
Rank in Amazonas
5th of 6

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

What about similarly populated cities?

246<19751976–19901991–20052006–2020SNDi of street additions
246<19751976–19901991–20052006–2020SNDi of entire street network
CoariMagagindokeMussende

In new street additions, Coari built increasingly disconnected streets over time, while Magagindoke built increasingly disconnected streets from 1975 through 1976-1990, then improved and Mussende fluctuated in its street-construction patterns. For the full network, Coari became progressively more disconnected, while Magagindoke grew more disconnected from 1975 through 1976-1990, then improved and Mussende fluctuated in connectivity. Coari and Magagindoke have been growing further apart in their street-network character since 1975.