Tiruppur in context: Street-network sprawl trends

Tiruppur 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
TiruppurTamil Nadu (Region)India (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Tiruppur plotted against Tamil Nadu and India. The SNDi of new construction in Tiruppur rose steadily, compared to Tamil Nadu which rose steadily and India which followed a zig-zag trend with an overall increase. Most recently, Tiruppur's incremental SNDi rose from 4.25 to 4.3 between 1991-2005 and 2006-2020. In terms of the aggregate network, Tiruppur ranked 58th out of 121 cities in Tamil Nadu and 932nd out of 1868 in India as of 2020.

New Street Additions (2006–2020)

SNDi value
4.3
Rank in India
707th of 1868
Rank in Tamil Nadu
34th of 121

Entire Network (Aggregate)

SNDi value
3.79
Rank in India
932nd of 1868
Rank in Tamil Nadu
58th of 121

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

What about similarly populated cities?

1.82.73.64.55.4<19751976–19901991–20052006–2020SNDi of street additions
1.82.73.64.55.4<19751976–19901991–20052006–2020SNDi of entire street network
TiruppurMardanAmsterdam

In new street additions, Tiruppur and Amsterdam both built increasingly disconnected streets over time, while Mardan built increasingly connected streets from 1975 through 1991-2005, then shifted to more disconnected patterns. For the full network, Tiruppur and Amsterdam both became progressively more disconnected, while Mardan became more connected from 1975 through 1991-2005, then grew more sprawly from 1991-2005 onwards. Tiruppur and Mardan have been converging in their street-network character since 1975.