Ilhéus in context: Street-network sprawl trends

Ilheus in context

2468<19751976–19901991–20052006–2020SNDi of street additions
2468<19751976–19901991–20052006–2020SNDi of entire street network
IlheusBahia (Region)Brazil (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Ilhéus plotted against Bahia and Brazil. The SNDi of new construction in Ilhéus rose steadily, compared to Bahia which followed a zig-zag trend with an overall increase and Brazil which followed a zig-zag trend with an overall increase. Most recently, Ilhéus's incremental SNDi rose from 5.7 to 8.46 between 1991-2005 and 2006-2020. In terms of the aggregate network, Ilhéus ranked 20th out of 22 cities in Bahia and 339th out of 365 in Brazil as of 2020.

New Street Additions (2006–2020)

SNDi value
8.46
Rank in Brazil
361st of 365
Rank in Bahia
22nd of 22

Entire Network (Aggregate)

SNDi value
4.02
Rank in Brazil
339th of 365
Rank in Bahia
20th of 22

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

What about similarly populated cities?

2468<19751976–19901991–20052006–2020SNDi of street additions
2468<19751976–19901991–20052006–2020SNDi of entire street network
IlheusKadomaSt. John's

Ilhéus, Kadoma, and St. John's all built increasingly disconnected streets over time in new street construction. The same pattern holds for the full street network. Ilhéus and St. John's have been growing further apart in their street-network character since 1975.