Cooch Behar 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 Cooch Behar plotted against West Bengal and India. The SNDi of new construction in Cooch Behar 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, Cooch Behar's incremental SNDi rose from 3.35 to 4.93 between 1991-2005 and 2006-2020. In terms of the aggregate network, Cooch Behar ranked 17th out of 140 cities in West Bengal and 609th 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?

• Loudi, China
• Ghazipur, India
• Dimapur, India
• Edinburgh, United Kingdom
• Ad Da'ein, Sudan
• Yangquan, China

In new street additions, Cooch Behar built increasingly disconnected streets over time, while Loudi built increasingly disconnected streets from 1975 through 1976-1990, then improved and Edinburgh built increasingly disconnected streets from 1975 through 1991-2005, then improved. For the full network, Cooch Behar and Edinburgh both became progressively more disconnected, while Loudi grew more disconnected from 1975 through 1976-1990, then improved. Notably, Cooch Behar had a more connected network than Edinburgh in 1975 but the two have since reversed their relative ranking.