Modanganj in context: Street-network sprawl trends

Modanganj in context

02468<19751976–19901991–20052006–2020SNDi of street additions
02468<19751976–19901991–20052006–2020SNDi of entire street network
ModanganjBihar (Region)India (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Modanganj plotted against Bihar and India. The SNDi of new construction in Modanganj rose steadily, compared to Bihar which followed a zig-zag trend with an overall increase and India which followed a zig-zag trend with an overall increase. Most recently, Modanganj's incremental SNDi rose from 3.32 to 8.17 between 1991-2005 and 2006-2020. In terms of the aggregate network, Modanganj ranked 125th out of 264 cities in Bihar and 1330th out of 1868 in India as of 2020.

New Street Additions (2006–2020)

SNDi value
8.17
Rank in India
1674th of 1868
Rank in Bihar
227th of 264

Entire Network (Aggregate)

SNDi value
4.54
Rank in India
1330th of 1868
Rank in Bihar
125th of 264

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

What about similarly populated cities?

02468<19751976–19901991–20052006–2020SNDi of street additions
02468<19751976–19901991–20052006–2020SNDi of entire street network
ModanganjWenshanQian'an

Modanganj, Wenshan, and Qian'an all built increasingly disconnected streets over time in new street construction. The same pattern holds for the full street network. Notably, Modanganj had a more connected network than Wenshan in 1975 but the two have since reversed their relative ranking.