Yasuj 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 Yasuj plotted against Kohgiluyeh and Buyer Ahmad and Iran. The SNDi of new construction in Yasuj was at its lowest in 1991-2005, compared to Kohgiluyeh and Buyer Ahmad which was at its lowest in 1991-2005 and Iran which rose steadily. Most recently, Yasuj's incremental SNDi rose from 3.38 to 3.67 between 1991-2005 and 2006-2020. In terms of the aggregate network, Yasuj ranked 4th out of 4 cities in Kohgiluyeh and Buyer Ahmad and 134th out of 169 in Iran as of 2020.

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

What about similarly populated cities?

• Matihani, India
• Lishui, China
• Labé, Guinea
• Colón, Panama
• Jinxian, China
• Ostrava, Czechia

In new street additions, Yasuj built increasingly connected streets from 1975 through 1991-2005, then shifted to more disconnected patterns, while Matihani built increasingly disconnected streets from 1975 through 1991-2005, then improved and Colón built increasingly disconnected streets over time. Looking at the full network, Matihani and Colón both became progressively more disconnected, while Yasuj became more connected from 1975 through 1991-2005, then grew more sprawly from 1991-2005 onwards. Notably, Yasuj had a more sprawly network than Colón in 1975 but the two have since reversed their relative ranking.