Shankardih in context: Street-network sprawl trends

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Shankardih plotted against Bihar and India. The SNDi of new construction in Shankardih 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, Shankardih's incremental SNDi rose from 4.1 to 5.04 between 1991-2005 and 2006-2020. In terms of the aggregate network, Shankardih ranked 162nd out of 264 cities in Bihar and 1463rd out of 1868 in India as of 2020.

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

What about similarly populated cities?

• Char Madhua, Bangladesh
• Muhavoor, India
• Buran Gabarda, India
• Jacksonville Beach, United States
• San José del Valle, México
• Barbil, India

In new street additions, Shankardih built increasingly connected streets from 1975 through 1991-2005, then shifted to more disconnected patterns, while Char Madhua built increasingly connected streets from 1975 through 1976-1990, then shifted to more disconnected patterns and Jacksonville Beach built increasingly disconnected streets from 1975 through 1991-2005, then improved. For the full network, Shankardih became more connected from 1975 through 1991-2005, then grew more sprawly from 1991-2005 onwards, while Char Madhua became more connected from 1975 through 1976-1990, then grew more sprawly from 1976-1990 onwards and Jacksonville Beach became progressively more disconnected. Shankardih and Jacksonville Beach have been converging in their street-network character since 1975.