Sundarpur 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 Sundarpur plotted against Bihar and India. All three follow the same trend in new construction, suggesting a shared regional pattern of development. Most recently, Sundarpur's incremental SNDi rose from 6.01 to 6.5 between 1991-2005 and 2006-2020. In terms of the aggregate network, Sundarpur ranked 235th out of 264 cities in Bihar and 1717th 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?

• Ramdurg, India
• Kaliabor, India
• Molfetta, Italy
• Ratia, India
• Fatehpur Sikri, India
• Anping, China

In new street additions, Sundarpur fluctuated in its street-construction patterns, while Ramdurg built increasingly connected streets from 1975 through 1991-2005, then shifted to more disconnected patterns and Ratia built increasingly disconnected streets over time. For the full network, Sundarpur fluctuated in connectivity, while Ramdurg became more connected from 1975 through 1991-2005, then grew more sprawly from 1991-2005 onwards and Ratia became progressively more disconnected. Sundarpur and Ramdurg have been growing further apart in their street-network character since 1975.