San Salvador in context: Street-network sprawl trends

San Salvador in context

4567<19751976–19901991–20052006–2020SNDi of street additions
4567<19751976–19901991–20052006–2020SNDi of entire street network
San SalvadorEl Salvador (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with San Salvador plotted against El Salvador. Both San Salvador and El Salvador follow the same trend. Most recently, San Salvador's incremental SNDi rose from 6.91 to 7.05 between 1991-2005 and 2006-2020. In terms of the aggregate network, San Salvador ranked 12th out of 12 in El Salvador as of 2020.

New Street Additions (2006–2020)

SNDi value
7.05
Rank in El Salvador
12th of 12

Entire Network (Aggregate)

SNDi value
5.19
Rank in El Salvador
12th of 12

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

What about similarly populated cities?

234567<19751976–19901991–20052006–2020SNDi of street additions
234567<19751976–19901991–20052006–2020SNDi of entire street network
San SalvadorBostonIsfahan

In new street additions, San Salvador built increasingly disconnected streets over time, while Boston built increasingly disconnected streets from 1975 through 1991-2005, then improved and Isfahan fluctuated in its street-construction patterns. For the full network, San Salvador and Boston both became progressively more disconnected, while Isfahan fluctuated in connectivity. San Salvador and Boston have been growing further apart in their street-network character since 1975.