Islampur in context: Street-network sprawl trends

Islampur in context

4567<19751976–19901991–20052006–2020SNDi of street additions
4567<19751976–19901991–20052006–2020SNDi of entire street network
IslampurWest Bengal (Region)India (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Islampur plotted against West Bengal and India. All three follow the same trend in new construction, suggesting a shared regional pattern of development. Most recently, Islampur's incremental SNDi rose from 3.54 to 6.65 between 1991-2005 and 2006-2020. In terms of the aggregate network, Islampur ranked 44th out of 140 cities in West Bengal as of 2020.

New Street Additions (2006–2020)

SNDi value
6.65
Rank in West Bengal
86th of 140

Entire Network (Aggregate)

SNDi value
3.93
Rank in West Bengal
44th of 140

Rankings go from most connected to most disconnected — rank 1 is the most connected.

What about similarly populated cities?

4567<19751976–19901991–20052006–2020SNDi of street additions
4567<19751976–19901991–20052006–2020SNDi of entire street network
IslampurKalolBagaha

In new street additions, Islampur and Bagaha both fluctuated in its street-construction patterns, while Kalol fluctuated in its street-construction patterns. For the full network, Islampur fluctuated in connectivity, while Kalol fluctuated in connectivity and Bagaha became progressively more disconnected. Notably, Islampur had a more connected network than Kalol in 1975 but the two have since reversed their relative ranking.