Thanjavur in context: Street-network sprawl trends

Thanjavur 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
ThanjavurTamil Nadu (Region)India (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Thanjavur plotted against Tamil Nadu and India. The SNDi of new construction in Thanjavur was at its lowest in 1976-1990, compared to Tamil Nadu which rose steadily and India which followed a zig-zag trend with an overall increase. Most recently, Thanjavur's incremental SNDi rose from 2.67 to 3.2 between 1991-2005 and 2006-2020. In terms of the aggregate network, Thanjavur ranked 17th out of 121 cities in Tamil Nadu and 421st out of 1868 in India as of 2020.

New Street Additions (2006–2020)

SNDi value
3.2
Rank in India
304th of 1868
Rank in Tamil Nadu
9th of 121

Entire Network (Aggregate)

SNDi value
2.88
Rank in India
421st of 1868
Rank in Tamil Nadu
17th of 121

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

What about similarly populated cities?

3456<19751976–19901991–20052006–2020SNDi of street additions
3456<19751976–19901991–20052006–2020SNDi of entire street network
ThanjavurCuscoJaynagar Majilpur

In new street additions, Thanjavur and Jaynagar Majilpur both built increasingly connected streets from 1975 through 1976-1990, then shifted to more disconnected patterns, while Cusco built increasingly disconnected streets from 1975 through 1976-1990, then improved. For the full network, Thanjavur became more connected from 1975 through 1991-2005, then grew more sprawly from 1991-2005 onwards, while Cusco became progressively more disconnected and Jaynagar Majilpur became more connected from 1975 through 1976-1990, then grew more sprawly from 1976-1990 onwards. Notably, Thanjavur had a more sprawly network than Cusco in 1975 but the two have since reversed their relative ranking.