Donostia / San Sebastián in context: Street-network sprawl trends
Donostia / San Sebastian in context
The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Donostia / San Sebastián plotted against País Vasco and Spain. The SNDi of new construction in Donostia / San Sebastián followed a zig-zag trend with an overall increase, compared to País Vasco which peaked in 1976-1990 and Spain which peaked in 1976-1990. Most recently, Donostia / San Sebastián's incremental SNDi rose from 3.33 to 5.45 between 1991-2005 and 2006-2020. In terms of the aggregate network, Donostia / San Sebastián ranked 2nd out of 3 cities in País Vasco and 73rd out of 85 in Spain as of 2020.
New Street Additions (2006–2020)
- SNDi value
- 5.45
- Rank in Spain
- 82nd of 85
- Rank in País Vasco
- 3rd of 3
Entire Network (Aggregate)
- SNDi value
- 2.8
- Rank in Spain
- 73rd of 85
- Rank in País Vasco
- 2nd of 3
Rankings go from most connected to most disconnected — rank 1 is the most connected.
What about similarly populated cities?
In new street additions, Donostia / San Sebastián and Botou both fluctuated in its street-construction patterns, while Amarshi built increasingly connected streets from 1975 through 1976-1990, then shifted to more disconnected patterns. For the full network, Donostia / San Sebastián and Botou both became progressively more disconnected, while Amarshi became more connected from 1975 through 1991-2005, then grew more sprawly from 1991-2005 onwards. Donostia / San Sebastián and Amarshi have been converging in their street-network character since 1975.