Lalmohan in context: Street-network sprawl trends

Lalmohan in context

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

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Lalmohan plotted against Barisal and Bangladesh. The SNDi of new construction in Lalmohan rose steadily, compared to Barisal which rose steadily and Bangladesh which followed a zig-zag trend with an overall increase. Most recently, Lalmohan's incremental SNDi rose from 5.68 to 7.23 between 1991-2005 and 2006-2020. In terms of the aggregate network, Lalmohan ranked 4th out of 15 cities in Barisal and 67th out of 234 in Bangladesh as of 2020.

New Street Additions (2006–2020)

SNDi value
7.23
Rank in Bangladesh
97th of 234
Rank in Barisal
7th of 15

Entire Network (Aggregate)

SNDi value
4.93
Rank in Bangladesh
67th of 234
Rank in Barisal
4th of 15

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

What about similarly populated cities?

2468<19751976–19901991–20052006–2020SNDi of street additions
2468<19751976–19901991–20052006–2020SNDi of entire street network
LalmohanMaple RidgeContramaestre

In new street additions, Lalmohan and Contramaestre both built increasingly disconnected streets over time, while Maple Ridge built increasingly disconnected streets from 1975 through 1991-2005, then improved. Looking at the full network, Maple Ridge and Contramaestre both became progressively more disconnected, while Lalmohan fluctuated in connectivity. Notably, Lalmohan had a more connected network than Maple Ridge in 1975 but the two have since reversed their relative ranking.