Bulbulchandi 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 Bulbulchandi plotted against West Bengal and India. All three follow the same trend in new construction, suggesting a shared regional pattern of development. Most recently, Bulbulchandi's incremental SNDi rose from 6.9 to 8.32 between 1991-2005 and 2006-2020. In terms of the aggregate network, Bulbulchandi ranked 114th out of 140 cities in West Bengal and 1730th 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?

• Dupchachia, Bangladesh
• eMzinoni, South Africa
• Mundok, North Korea
• Fair Oaks, United States
• Concepción, Argentina
• Bena-Leka, Democratic Republic of the Congo

In new street additions, Bulbulchandi fluctuated in its street-construction patterns, while Dupchachia fluctuated in its street-construction patterns and Fair Oaks built increasingly disconnected streets over time. For the full network, Bulbulchandi and Fair Oaks both became progressively more disconnected, while Dupchachia fluctuated in connectivity. Bulbulchandi and Dupchachia have been growing further apart in their street-network character since 1975.