Periyakulam in context: Street-network sprawl trends

Periyakulam 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
PeriyakulamTamil Nadu (Region)India (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Periyakulam plotted against Tamil Nadu and India. While Tamil Nadu and India both followed a zig-zag trend with an overall increase, Periyakulam's new street additions followed a zig-zag trend with an overall increase. Most recently, Periyakulam's incremental SNDi rose from 2.44 to 3.45 between 1991-2005 and 2006-2020. In terms of the aggregate network, Periyakulam ranked 5th out of 121 cities in Tamil Nadu and 145th out of 1868 in India as of 2020.

New Street Additions (2006–2020)

SNDi value
3.45
Rank in India
384th of 1868
Rank in Tamil Nadu
11th of 121

Entire Network (Aggregate)

SNDi value
2.17
Rank in India
145th of 1868
Rank in Tamil Nadu
5th of 121

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

What about similarly populated cities?

2468<19751976–19901991–20052006–2020SNDi of street additions
2468<19751976–19901991–20052006–2020SNDi of entire street network
PeriyakulamMurbadTanjung

In new street additions, Periyakulam and Murbad both fluctuated in its street-construction patterns, while Tanjung built increasingly disconnected streets over time. Looking at the full network, Murbad and Tanjung both became progressively more disconnected, while Periyakulam grew more disconnected from 1975 through 1976-1990, then improved. Periyakulam and Murbad have been growing further apart in their street-network character since 1975.