Kalchini 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 Kalchini plotted against West Bengal and India. The SNDi of new construction in Kalchini followed a zig-zag trend, compared to West Bengal which followed a zig-zag trend with an overall increase and India which followed a zig-zag trend with an overall increase. Most recently, Kalchini's incremental SNDi rose from 1.92 to 4.32 between 1991-2005 and 2006-2020. In terms of the aggregate network, Kalchini ranked 18th out of 140 cities in West Bengal and 619th 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?

• Ribeirão das Neves, Brazil
• Parcona, Peru
• Jatoi, Pakistan
• Manori, India
• Samba, Democratic Republic of the Congo
• Pucheng, China

In new street additions, Kalchini fluctuated in its street-construction patterns, while Ribeirão das Neves built increasingly disconnected streets over time and Manori fluctuated in its street-construction patterns. Looking at the full network, Ribeirão das Neves and Manori both became progressively more disconnected, while Kalchini fluctuated in connectivity. Kalchini and Ribeirão das Neves have been converging in their street-network character since 1975.