Bairgania 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 Bairgania plotted against Bihar and India. The SNDi of new construction in Bairgania followed a zig-zag trend with an overall increase, 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, Bairgania's incremental SNDi fell from 5.19 to 4.58 between 1991-2005 and 2006-2020. In terms of the aggregate network, Bairgania ranked 98th out of 264 cities in Bihar and 1209th 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?

• Rongxian, China
• Emmiganuru, India
• Kumbo, Cameroon
• Haidarganj, India
• Malakal, South Sudan
• Lahat, Indonesia

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