Los Andes in context: Street-network sprawl trends

Los Andes in context

2.83.54.24.9<19751976–19901991–20052006–2020SNDi of street additions
2.83.54.24.9<19751976–19901991–20052006–2020SNDi of entire street network
Los AndesValparaiso (Region)Chile (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Los Andes plotted against Valparaíso and Chile. The SNDi of new construction in Los Andes peaked in 1976-1990, compared to Valparaíso which followed a zig-zag trend with an overall increase and Chile which followed a zig-zag trend with an overall increase. Most recently, Los Andes's incremental SNDi fell from 4.12 to 3.95 between 1991-2005 and 2006-2020. In terms of the aggregate network, Los Andes ranked 7th out of 7 cities in Valparaíso and 33rd out of 38 in Chile as of 2020.

New Street Additions (2006–2020)

SNDi value
3.95
Rank in Chile
31st of 38
Rank in Valparaíso
6th of 7

Entire Network (Aggregate)

SNDi value
3.56
Rank in Chile
33rd of 38
Rank in Valparaíso
7th of 7

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

What about similarly populated cities?

123456<19751976–19901991–20052006–2020SNDi of street additions
123456<19751976–19901991–20052006–2020SNDi of entire street network
Los AndesSocopoCadiz

In new street additions, Los Andes built increasingly disconnected streets from 1975 through 1976-1990, then improved, while Socopó fluctuated in its street-construction patterns and Cadiz built increasingly connected streets from 1975 through 1991-2005, then shifted to more disconnected patterns. For the full network, Los Andes became progressively more disconnected, while Socopó fluctuated in connectivity and Cadiz became more connected from 1975 through 1991-2005, then grew more sprawly from 1991-2005 onwards. Los Andes and Cadiz have been converging in their street-network character since 1975.