Villa Mercedes 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 Villa Mercedes plotted against San Luis and Argentina. The SNDi of new construction in Villa Mercedes peaked in 1976-1990, compared to San Luis which followed a zig-zag trend with an overall increase and Argentina which followed a zig-zag trend with an overall increase. Most recently, Villa Mercedes's incremental SNDi fell from 1.68 to 1.63 between 1991-2005 and 2006-2020. In terms of the aggregate network, Villa Mercedes ranked 1st out of 2 cities in San Luis and 34th out of 77 in Argentina as of 2020.

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

What about similarly populated cities?

• Baqubah, Iraq
• Huailai, China
• Wenxi, China
• Sahar, India
• Nakonde, Zambia
• Pobè, Benin

In new street additions, Villa Mercedes and Sahar both built increasingly disconnected streets from 1975 through 1976-1990, then improved, while Baqubah built increasingly disconnected streets over time. For the full network, Villa Mercedes and Baqubah both became progressively more disconnected, while Sahar grew more disconnected from 1975 through 1976-1990, then improved.