Belém in context: Street-network sprawl trends

Belem in context

2.73.64.55.4<19751976–19901991–20052006–2020SNDi of street additions
2.73.64.55.4<19751976–19901991–20052006–2020SNDi of entire street network
BelemPara (Region)Brazil (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Belém plotted against Pará and Brazil. While Pará and Brazil both followed a zig-zag trend with an overall increase, Belém's new street additions followed a zig-zag trend with an overall increase. Most recently, Belém's incremental SNDi rose from 4.19 to 5.1 between 1991-2005 and 2006-2020. In terms of the aggregate network, Belém ranked 16th out of 16 cities in Pará and 313th out of 365 in Brazil as of 2020.

New Street Additions (2006–2020)

SNDi value
5.1
Rank in Brazil
316th of 365
Rank in Pará
16th of 16

Entire Network (Aggregate)

SNDi value
3.55
Rank in Brazil
313th of 365
Rank in Pará
16th of 16

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

What about similarly populated cities?

2.73.64.55.4<19751976–19901991–20052006–2020SNDi of street additions
2.73.64.55.4<19751976–19901991–20052006–2020SNDi of entire street network
BelemLudhianaVadodara

In new street additions, Ludhiana and Vadodara both built increasingly disconnected streets over time, while Belém fluctuated in street-construction patterns. For the full street network, though, all three cities follow the same trend. Belém and Ludhiana have been growing further apart in their street-network character since 1975.