Aruppukkottai 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 Aruppukkottai plotted against Tamil Nadu and India. The SNDi of new construction in Aruppukkottai rose steadily, compared to Tamil Nadu which rose steadily and India which followed a zig-zag trend with an overall increase. Most recently, Aruppukkottai's incremental SNDi rose from 5.02 to 6.19 between 1991-2005 and 2006-2020. In terms of the aggregate network, Aruppukkottai ranked 75th out of 121 cities in Tamil Nadu and 1045th 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?

• Phalodi, India
• Charallave, Venezuela
• Parhati, India
• Blackburn, United Kingdom
• Coonoor, India
• Bobai, China

In new street additions, Aruppukkottai built increasingly disconnected streets over time, while Phalodi fluctuated in its street-construction patterns and Blackburn built increasingly disconnected streets from 1975 through 1991-2005, then improved. For the full network, Aruppukkottai and Blackburn both became progressively more disconnected, while Phalodi fluctuated in connectivity. Aruppukkottai and Phalodi have been growing further apart in their street-network character since 1975.