Ovalle in context: Street-network sprawl trends

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Ovalle plotted against Coquimbo and Chile. The SNDi of new construction in Ovalle was at its lowest in 1991-2005, compared to Coquimbo which followed a zig-zag trend with an overall increase and Chile which followed a zig-zag trend with an overall increase. Most recently, Ovalle's incremental SNDi rose from 2.38 to 2.98 between 1991-2005 and 2006-2020. In terms of the aggregate network, Ovalle ranked 1st out of 3 cities in Coquimbo and 7th out of 38 in Chile as of 2020.

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

What about similarly populated cities?

• Kirkby-in-Ashfield, United Kingdom
• Doro Gowon, Nigeria
• Naushahro Feroze, Pakistan
• Borazjan, Iran
• Atlantis, South Africa
• Grand Goâve, Haiti

In new street additions, Ovalle built increasingly connected streets from 1975 through 1991-2005, then shifted to more disconnected patterns, while Kirkby-in-Ashfield built increasingly disconnected streets from 1975 through 1991-2005, then improved and Borazjan fluctuated in its street-construction patterns. For the full network, Ovalle became more connected from 1975 through 1991-2005, then grew more sprawly from 1991-2005 onwards, while Kirkby-in-Ashfield became progressively more disconnected and Borazjan fluctuated in connectivity. Ovalle and Kirkby-in-Ashfield have been growing further apart in their street-network character since 1975.