Castanhal in context: Street-network sprawl trends
Castanhal in context
The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Castanhal plotted against Pará and Brazil. The SNDi of new construction in Castanhal peaked in 1976-1990, compared to Pará which peaked in 1976-1990 and Brazil which followed a zig-zag trend with an overall increase. Most recently, Castanhal's incremental SNDi fell from 1.94 to 1.87 between 1991-2005 and 2006-2020. In terms of the aggregate network, Castanhal ranked 6th out of 16 cities in Pará and 101st out of 365 in Brazil as of 2020.
New Street Additions (2006–2020)
- SNDi value
- 1.87
- Rank in Brazil
- 38th of 365
- Rank in Pará
- 4th of 16
Entire Network (Aggregate)
- SNDi value
- 1.9
- Rank in Brazil
- 101st of 365
- Rank in Pará
- 6th of 16
Rankings go from most connected to most disconnected — rank 1 is the most connected.
What about similarly populated cities?
In new street additions, Castanhal built increasingly disconnected streets from 1975 through 1976-1990, then improved, while Ostrava fluctuated in its street-construction patterns and Chandpur built increasingly disconnected streets over time. Looking at the full network, Ostrava and Chandpur both became progressively more disconnected, while Castanhal grew more disconnected from 1975 through 1991-2005, then improved. Castanhal and Chandpur have been growing further apart in their street-network character since 1975.