Basantpur 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 Basantpur plotted against Bihar and India. The SNDi of new construction in Basantpur was at its lowest in 1976-1990, 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, Basantpur's incremental SNDi rose from 5.0 to 5.21 between 1991-2005 and 2006-2020. In terms of the aggregate network, Basantpur ranked 161st out of 264 cities in Bihar and 1461st 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?

• Karaikal, India
• Mamuju, Indonesia
• Tarzoho, Nigeria
• Liangping, China
• Zhujing, China
• Daet, Philippines

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