Dharmapuri 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 Dharmapuri plotted against Tamil Nadu and India. The SNDi of new construction in Dharmapuri rose steadily, compared to Tamil Nadu which rose steadily and India which followed a zig-zag trend with an overall increase. Most recently, Dharmapuri's incremental SNDi rose from 4.65 to 6.53 between 1991-2005 and 2006-2020. In terms of the aggregate network, Dharmapuri ranked 104th out of 121 cities in Tamil Nadu and 1377th 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?

• Biswan, India
• Cổ Lễ, Vietnam
• Tebing Tinggi, Indonesia
• Nassau, Bahamas
• Ghent, Belgium
• Wuchuan, China

In new street additions, Dharmapuri and Nassau both built increasingly disconnected streets over time, while Biswan built increasingly connected streets from 1975 through 1976-1990, then shifted to more disconnected patterns. For the full network, Dharmapuri and Nassau both became progressively more disconnected, while Biswan became more connected from 1975 through 1976-1990, then grew more sprawly from 1976-1990 onwards. Dharmapuri and Biswan have been growing further apart in their street-network character since 1975.