Aranthangi 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 Aranthangi plotted against Tamil Nadu and India. The SNDi of new construction in Aranthangi was at its lowest in 1991-2005, compared to Tamil Nadu which rose steadily and India which followed a zig-zag trend with an overall increase. Most recently, Aranthangi's incremental SNDi rose from 3.7 to 4.72 between 1991-2005 and 2006-2020. In terms of the aggregate network, Aranthangi ranked 87th out of 121 cities in Tamil Nadu and 1136th 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?

• Anka, Nigeria
• Imehejek, South Sudan
• Yongning, China
• Banaripara, Bangladesh
• Kola Diba, Ethiopia
• Showt, Iran

In new street additions, Aranthangi built increasingly connected streets from 1975 through 1991-2005, then shifted to more disconnected patterns, while Anka built increasingly disconnected streets from 1975 through 1976-1990, then improved and Banaripara built increasingly connected streets from 1975 through 1976-1990, then shifted to more disconnected patterns. For the full network, Aranthangi became more connected from 1975 through 1991-2005, then grew more sprawly from 1991-2005 onwards, while Anka grew more disconnected from 1975 through 1976-1990, then improved and Banaripara became progressively more disconnected. Aranthangi and Banaripara have been growing further apart in their street-network character since 1975.