Kodarma 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 Kodarma plotted against Jharkhand and India. The SNDi of new construction in Kodarma was at its lowest in 1976-1990, compared to Jharkhand which followed a zig-zag trend with an overall increase and India which followed a zig-zag trend with an overall increase. Most recently, Kodarma's incremental SNDi rose from 4.13 to 4.32 between 1991-2005 and 2006-2020. In terms of the aggregate network, Kodarma ranked 22nd out of 46 cities in Jharkhand and 973rd 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?

• Jianyang, China
• Abonnema, Nigeria
• Oryol, Russia
• Barmer, India
• Balurghat, India
• Sarajevo, Bosnia and Herzegovina

In new street additions, Kodarma built increasingly connected streets from 1975 through 1976-1990, then shifted to more disconnected patterns, while Jianyang built increasingly disconnected streets from 1975 through 1976-1990, then improved and Barmer fluctuated in its street-construction patterns. For the full network, Kodarma became more connected from 1975 through 1976-1990, then grew more sprawly from 1976-1990 onwards, while Jianyang grew more disconnected from 1975 through 1991-2005, then improved and Barmer became progressively more disconnected. Kodarma and Jianyang have been growing further apart in their street-network character since 1975.