Chinnamanur in context: Street-network sprawl trends

Chinnamanur in context

2345<19751976–19901991–20052006–2020SNDi of street additions
2345<19751976–19901991–20052006–2020SNDi of entire street network
ChinnamanurTamil Nadu (Region)India (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Chinnamanur plotted against Tamil Nadu and India. The SNDi of new construction in Chinnamanur rose steadily, compared to Tamil Nadu which rose steadily and India which followed a zig-zag trend with an overall increase. Most recently, Chinnamanur's incremental SNDi rose from 2.03 to 2.36 between 1991-2005 and 2006-2020. In terms of the aggregate network, Chinnamanur ranked 3rd out of 121 cities in Tamil Nadu and 92nd out of 1868 in India as of 2020.

New Street Additions (2006–2020)

SNDi value
2.36
Rank in India
147th of 1868
Rank in Tamil Nadu
2nd of 121

Entire Network (Aggregate)

SNDi value
1.83
Rank in India
92nd of 1868
Rank in Tamil Nadu
3rd of 121

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

What about similarly populated cities?

22.533.5<19751976–19901991–20052006–2020SNDi of street additions
22.533.5<19751976–19901991–20052006–2020SNDi of entire street network
ChinnamanurKashiwazakiIgangan

In new street additions, Chinnamanur built increasingly disconnected streets over time, while Kashiwazaki built increasingly disconnected streets from 1975 through 1976-1990, then improved and Igangan built increasingly disconnected streets from 1975 through 1991-2005, then improved. For the full network, Chinnamanur and Igangan both became progressively more disconnected, while Kashiwazaki grew more disconnected from 1975 through 1976-1990, then improved. Chinnamanur and Kashiwazaki have been converging in their street-network character since 1975.