Siuri 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 Siuri plotted against West Bengal and India. The SNDi of new construction in Siuri peaked in 1991-2005, compared to West Bengal which followed a zig-zag trend with an overall increase and India which followed a zig-zag trend with an overall increase. Most recently, Siuri's incremental SNDi fell from 3.67 to 2.42 between 1991-2005 and 2006-2020. In terms of the aggregate network, Siuri ranked 13th out of 140 cities in West Bengal and 577th out of 1868 in India as of 2020.

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

What about similarly populated cities?

• Hamedan, Iran
• Hatay, Turkey
• Swabi, Pakistan
• Kalyanpur, India
• Buffalo, United States
• Zoucheng, China

In new street additions, Siuri built increasingly disconnected streets from 1975 through 1991-2005, then improved, while Hamedan built increasingly connected streets from 1975 through 1976-1990, then shifted to more disconnected patterns and Kalyanpur fluctuated in its street-construction patterns. Looking at the full network, Hamedan and Kalyanpur both became more connected from 1975 through 1976-1990, then grew more sprawly from 1976-1990 onwards, while Siuri grew more disconnected from 1975 through 1991-2005, then improved. Siuri and Hamedan have been converging in their street-network character since 1975.