Arambagh 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 Arambagh plotted against West Bengal and India. The SNDi of new construction in Arambagh rose steadily, 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, Arambagh's incremental SNDi rose from 5.76 to 7.92 between 1991-2005 and 2006-2020. In terms of the aggregate network, Arambagh ranked 30th out of 140 cities in West Bengal and 884th 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?

• Yonago, Japan
• Dholka, India
• Dajindian, China
• Kaltungo, Nigeria
• Channapattana, India
• Massa, Italy

In new street additions, Arambagh built increasingly disconnected streets over time, while Yonago fluctuated in its street-construction patterns and Kaltungo fluctuated in its street-construction patterns. For the full network, Arambagh became progressively more disconnected, while Yonago fluctuated in connectivity and Kaltungo became more connected from 1975 through 1976-1990, then grew more sprawly from 1976-1990 onwards. Notably, Arambagh had a more connected network than Yonago in 1975 but the two have since reversed their relative ranking.