Viedma 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 Viedma plotted against Río Negro and Argentina. The SNDi of new construction in Viedma was at its lowest in 1991-2005, compared to Río Negro which followed a zig-zag trend with an overall increase and Argentina which followed a zig-zag trend with an overall increase. Most recently, Viedma's incremental SNDi rose from 1.46 to 1.52 between 1991-2005 and 2006-2020. In terms of the aggregate network, Viedma ranked 1st out of 4 cities in Río Negro and 40th 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?

• Jasaan, Philippines
• Alem Ketema, Ethiopia
• Iquitos, Peru
• Beloretsk, Russia
• Fengkai, China
• Kandhar, India

In new street additions, Viedma built increasingly connected streets from 1975 through 1991-2005, then shifted to more disconnected patterns, while Jasaan built increasingly disconnected streets over time and Beloretsk built increasingly disconnected streets from 1975 through 1991-2005, then improved. For the full network, Viedma became progressively more connected, while Jasaan became progressively more disconnected and Beloretsk grew more disconnected from 1975 through 1991-2005, then improved. Viedma and Jasaan have been growing further apart in their street-network character since 1975.