Erechim in context: Street-network sprawl trends

Erechim in context

2.12.83.54.2<19751976–19901991–20052006–2020SNDi of street additions
2.12.83.54.2<19751976–19901991–20052006–2020SNDi of entire street network
ErechimRio Grande do Sul (Region)Brazil (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Erechim plotted against Rio Grande do Sul and Brazil. While Rio Grande do Sul and Brazil both followed a zig-zag trend with an overall increase, Erechim's new street additions followed a zig-zag trend with an overall increase. Most recently, Erechim's incremental SNDi rose from 2.65 to 3.75 between 1991-2005 and 2006-2020. In terms of the aggregate network, Erechim ranked 14th out of 22 cities in Rio Grande do Sul and 222nd out of 365 in Brazil as of 2020.

New Street Additions (2006–2020)

SNDi value
3.75
Rank in Brazil
235th of 365
Rank in Rio Grande do Sul
13th of 22

Entire Network (Aggregate)

SNDi value
2.61
Rank in Brazil
222nd of 365
Rank in Rio Grande do Sul
14th of 22

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

What about similarly populated cities?

23456<19751976–19901991–20052006–2020SNDi of street additions
23456<19751976–19901991–20052006–2020SNDi of entire street network
ErechimValenciaHuojia

In new street additions, Erechim fluctuated in its street-construction patterns, while Valencia built increasingly disconnected streets over time and Huojia built increasingly connected streets over time. For the full network, Erechim and Valencia both became progressively more disconnected, while Huojia became progressively more connected. Erechim and Huojia have been converging in their street-network character since 1975.