Karaikudi in context: Street-network sprawl trends

Karaikudi in context

1.82.73.64.5<19751976–19901991–20052006–2020SNDi of street additions
1.82.73.64.5<19751976–19901991–20052006–2020SNDi of entire street network
KaraikudiTamil Nadu (Region)India (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Karaikudi plotted against Tamil Nadu and India. The SNDi of new construction in Karaikudi rose steadily, compared to Tamil Nadu which rose steadily and India which followed a zig-zag trend with an overall increase. Most recently, Karaikudi's incremental SNDi rose from 2.35 to 2.82 between 1991-2005 and 2006-2020. In terms of the aggregate network, Karaikudi ranked 8th out of 121 cities in Tamil Nadu and 193rd out of 1868 in India as of 2020.

New Street Additions (2006–2020)

SNDi value
2.82
Rank in India
210th of 1868
Rank in Tamil Nadu
6th of 121

Entire Network (Aggregate)

SNDi value
2.32
Rank in India
193rd of 1868
Rank in Tamil Nadu
8th of 121

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

What about similarly populated cities?

1.62.43.244.8<19751976–19901991–20052006–2020SNDi of street additions
1.62.43.244.8<19751976–19901991–20052006–2020SNDi of entire street network
KaraikudiKostanayHarar

While Kostanay and Harar both fluctuated in its street-construction patterns, Karaikudi built increasingly disconnected streets over time in new street additions. For the full street network, though, all three cities follow the same trend. Notably, Karaikudi had a more connected network than Kostanay in 1975 but the two have since reversed their relative ranking.