Sarni 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 Sarni plotted against Madhya Pradesh and India. The SNDi of new construction in Sarni peaked in 1991-2005, compared to Madhya Pradesh which followed a zig-zag trend with an overall increase and India which followed a zig-zag trend with an overall increase. Most recently, Sarni's incremental SNDi fell from 29.85 to 3.51 between 1991-2005 and 2006-2020. In terms of the aggregate network, Sarni ranked 96th out of 98 cities in Madhya Pradesh and 1857th 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?

• Ayyampettai, India
• Mineralnye Vody, Russia
• Granollers, Spain
• Hengfeng, China
• Gulavthi, India
• Akbarpur, India

In new street additions, Sarni built increasingly disconnected streets from 1975 through 1991-2005, then improved, while Ayyampettai fluctuated in its street-construction patterns and Hengfeng built increasingly connected streets from 1975 through 1991-2005, then shifted to more disconnected patterns. Looking at the full network, Ayyampettai and Hengfeng both became more connected from 1975 through 1991-2005, then grew more sprawly from 1991-2005 onwards, while Sarni became progressively more disconnected. Sarni and Ayyampettai have been growing further apart in their street-network character since 1975.