Londrina in context: Street-network sprawl trends

Londrina in context

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

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Londrina plotted against Paraná and Brazil. The SNDi of new construction in Londrina rose steadily, compared to Paraná which followed a zig-zag trend with an overall increase and Brazil which followed a zig-zag trend with an overall increase. Most recently, Londrina's incremental SNDi rose from 2.48 to 2.9 between 1991-2005 and 2006-2020. In terms of the aggregate network, Londrina ranked 9th out of 22 cities in Paraná and 175th out of 365 in Brazil as of 2020.

New Street Additions (2006–2020)

SNDi value
2.9
Rank in Brazil
150th of 365
Rank in Paraná
7th of 22

Entire Network (Aggregate)

SNDi value
2.3
Rank in Brazil
175th of 365
Rank in Paraná
9th 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
LondrinaJiangyinNorfolk

In new street additions, Londrina built increasingly disconnected streets over time, while Jiangyin fluctuated in its street-construction patterns and Norfolk built increasingly disconnected streets from 1975 through 1991-2005, then improved. For the full street network, though, all three cities follow the same trend.