Palani in context: Street-network sprawl trends

Palani in context

2.43.244.8<19751976–19901991–20052006–2020SNDi of street additions
2.43.244.8<19751976–19901991–20052006–2020SNDi of entire street network
PalaniTamil Nadu (Region)India (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Palani plotted against Tamil Nadu and India. The SNDi of new construction in Palani peaked in 1991-2005, compared to Tamil Nadu which rose steadily and India which followed a zig-zag trend with an overall increase. Most recently, Palani's incremental SNDi fell from 3.11 to 2.85 between 1991-2005 and 2006-2020. In terms of the aggregate network, Palani ranked 16th out of 121 cities in Tamil Nadu and 386th out of 1868 in India as of 2020.

New Street Additions (2006–2020)

SNDi value
2.85
Rank in India
225th of 1868
Rank in Tamil Nadu
7th of 121

Entire Network (Aggregate)

SNDi value
2.8
Rank in India
386th of 1868
Rank in Tamil Nadu
16th of 121

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

What about similarly populated cities?

1.62.43.24<19751976–19901991–20052006–2020SNDi of street additions
1.62.43.24<19751976–19901991–20052006–2020SNDi of entire street network
PalaniZhilkinoKaraman

In new street additions, Palani and Zhilkino both built increasingly disconnected streets from 1975 through 1991-2005, then improved, while Karaman fluctuated in its street-construction patterns. For the full network, Palani and Zhilkino both became progressively more disconnected, while Karaman fluctuated in connectivity. Palani and Zhilkino have been converging in their street-network character since 1975.