Routhkhai in context: Street-network sprawl trends

Routhkhai in context

468<19751976–19901991–20052006–2020SNDi of street additions
468<19751976–19901991–20052006–2020SNDi of entire street network
RouthkhaiSylhet (Region)Bangladesh (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Routhkhai plotted against Sylhet and Bangladesh. The SNDi of new construction in Routhkhai peaked in 1991-2005, compared to Sylhet which rose steadily and Bangladesh which followed a zig-zag trend with an overall increase. Most recently, Routhkhai's incremental SNDi fell from 4.67 to 3.49 between 1991-2005 and 2006-2020. In terms of the aggregate network, Routhkhai ranked 3rd out of 24 cities in Sylhet and 39th out of 234 in Bangladesh as of 2020.

New Street Additions (2006–2020)

SNDi value
3.49
Rank in Bangladesh
11th of 234
Rank in Sylhet
3rd of 24

Entire Network (Aggregate)

SNDi value
4.0
Rank in Bangladesh
39th of 234
Rank in Sylhet
3rd of 24

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

What about similarly populated cities?

1.82.73.64.5<19751976–19901991–20052006–2020SNDi of street additions
1.82.73.64.5<19751976–19901991–20052006–2020SNDi of entire street network
RouthkhaiDong HungIkara

In new street additions, Routhkhai and Đông Hưng both built increasingly disconnected streets from 1975 through 1991-2005, then improved, while Ikara built increasingly disconnected streets from 1975 through 1976-1990, then improved. For the full street network, though, all three cities follow the same trend. Routhkhai and Đông Hưng have been converging in their street-network character since 1975.