Imperatriz in context: Street-network sprawl trends

Imperatriz in context

22.533.5<19751976–19901991–20052006–2020SNDi of street additions
22.533.5<19751976–19901991–20052006–2020SNDi of entire street network
ImperatrizMaranhao (Region)Brazil (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Imperatriz plotted against Maranhão and Brazil. All three follow the same trend in new construction, suggesting a shared regional pattern of development. Most recently, Imperatriz's incremental SNDi rose from 2.42 to 2.75 between 1991-2005 and 2006-2020. In terms of the aggregate network, Imperatriz ranked 7th out of 11 cities in Maranhão and 162nd out of 365 in Brazil as of 2020.

New Street Additions (2006–2020)

SNDi value
2.75
Rank in Brazil
129th of 365
Rank in Maranhão
8th of 11

Entire Network (Aggregate)

SNDi value
2.24
Rank in Brazil
162nd of 365
Rank in Maranhão
7th of 11

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

What about similarly populated cities?

2.43.244.8<19751976–19901991–20052006–2020SNDi of street additions
2.43.244.8<19751976–19901991–20052006–2020SNDi of entire street network
ImperatrizNalchikKassel

In new street additions, Nalchik and Kassel both built increasingly disconnected streets over time, while Imperatriz fluctuated in street-construction patterns. For the full street network, though, all three cities follow the same trend. Notably, Imperatriz had a more connected network than Kassel in 1975, but the two have since reversed their relative ranking.