Kochas in context: Street-network sprawl trends

Kochas in context

4567<19751976–19901991–20052006–2020SNDi of street additions
4567<19751976–19901991–20052006–2020SNDi of entire street network
KochasBihar (Region)India (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Kochas plotted against Bihar and India. The SNDi of new construction in Kochas rose steadily, 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, Kochas's incremental SNDi rose from 6.26 to 6.77 between 1991-2005 and 2006-2020. In terms of the aggregate network, Kochas ranked 208th out of 264 cities in Bihar and 1611th out of 1868 in India as of 2020.

New Street Additions (2006–2020)

SNDi value
6.77
Rank in India
1532nd of 1868
Rank in Bihar
201st of 264

Entire Network (Aggregate)

SNDi value
5.48
Rank in India
1611th of 1868
Rank in Bihar
208th of 264

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

What about similarly populated cities?

234567<19751976–19901991–20052006–2020SNDi of street additions
234567<19751976–19901991–20052006–2020SNDi of entire street network
KochasWadi Ad DawasirCannock

In new street additions, Kochas built increasingly disconnected streets over time, while Wadi Ad Dawasir built increasingly disconnected streets from 1975 through 1976-1990, then improved and Cannock built increasingly disconnected streets from 1975 through 1991-2005, then improved. Looking at the full network, Wadi Ad Dawasir and Cannock both grew more disconnected from 1975 through 1991-2005, then improved, while Kochas became progressively more disconnected. Notably, Kochas had a more connected network than Cannock in 1975 but the two have since reversed their relative ranking.