Edappadi in context: Street-network sprawl trends

Edappadi in context

2.83.54.24.9<19751976–19901991–20052006–2020SNDi of street additions
2.83.54.24.9<19751976–19901991–20052006–2020SNDi of entire street network
EdappadiTamil Nadu (Region)India (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Edappadi plotted against Tamil Nadu and India. The SNDi of new construction in Edappadi rose steadily, compared to Tamil Nadu which rose steadily and India which followed a zig-zag trend with an overall increase. Most recently, Edappadi's incremental SNDi rose from 3.64 to 3.72 between 1991-2005 and 2006-2020. In terms of the aggregate network, Edappadi ranked 40th out of 121 cities in Tamil Nadu and 738th out of 1868 in India as of 2020.

New Street Additions (2006–2020)

SNDi value
3.72
Rank in India
479th of 1868
Rank in Tamil Nadu
14th of 121

Entire Network (Aggregate)

SNDi value
3.47
Rank in India
738th of 1868
Rank in Tamil Nadu
40th of 121

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

What about similarly populated cities?

2345<19751976–19901991–20052006–2020SNDi of street additions
2345<19751976–19901991–20052006–2020SNDi of entire street network
EdappadiBirganjCaucasia

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