Patiirwa in context: Street-network sprawl trends

Patiirwa in context

33.64.24.85.4<19751976–19901991–20052006–2020SNDi of street additions
33.64.24.85.4<19751976–19901991–20052006–2020SNDi of entire street network
PatiirwaBihar (Region)India (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Patiirwa plotted against Bihar and India. The SNDi of new construction in Patiirwa was at its lowest in 1976-1990, compared to Bihar which followed a zig-zag trend with an overall increase and India which followed a zig-zag trend with an overall increase. Most recently, Patiirwa's incremental SNDi rose from 3.32 to 3.74 between 1991-2005 and 2006-2020. In terms of the aggregate network, Patiirwa ranked 43rd out of 264 cities in Bihar and 792nd out of 1868 in India as of 2020.

New Street Additions (2006–2020)

SNDi value
3.74
Rank in India
494th of 1868
Rank in Bihar
42nd of 264

Entire Network (Aggregate)

SNDi value
3.55
Rank in India
792nd of 1868
Rank in Bihar
43rd of 264

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
PatiirwaTalaganteQaladiza

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