Semapur in context: Street-network sprawl trends

Semapur in context

3.64.55.46.3<19751976–19901991–20052006–2020SNDi of street additions
3.64.55.46.3<19751976–19901991–20052006–2020SNDi of entire street network
SemapurBihar (Region)India (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Semapur plotted against Bihar and India. The SNDi of new construction in Semapur was at its lowest in 1991-2005, 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, Semapur's incremental SNDi rose from 5.34 to 6.49 between 1991-2005 and 2006-2020. In terms of the aggregate network, Semapur ranked 219th out of 264 cities in Bihar and 1648th out of 1868 in India as of 2020.

New Street Additions (2006–2020)

SNDi value
6.49
Rank in India
1490th of 1868
Rank in Bihar
194th of 264

Entire Network (Aggregate)

SNDi value
5.7
Rank in India
1648th of 1868
Rank in Bihar
219th of 264

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
SemapurFaridpurMarawi

In new street additions, Semapur and Faridpur both built increasingly connected streets from 1975 through 1991-2005, then shifted to more disconnected patterns, while Marawi built increasingly disconnected streets from 1975 through 1991-2005, then improved. For the full network, Semapur became more connected from 1975 through 1991-2005, then grew more sprawly from 1991-2005 onwards, while Faridpur became progressively more connected and Marawi became progressively more disconnected. Semapur and Faridpur have been growing further apart in their street-network character since 1975.