Dambam in context: Street-network sprawl trends

Dambam in context

246810<19751976–19901991–20052006–2020SNDi of street additions
246810<19751976–19901991–20052006–2020SNDi of entire street network
DambamBauchi (Region)Nigeria (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Dambam plotted against Bauchi and Nigeria. The SNDi of new construction in Dambam fell steadily, compared to Bauchi which rose steadily and Nigeria which followed a zig-zag trend with an overall increase. Most recently, Dambam's incremental SNDi fell from 3.77 to 3.66 between 1991-2005 and 2006-2020. In terms of the aggregate network, Dambam ranked 10th out of 13 cities in Bauchi and 292nd out of 422 in Nigeria as of 2020.

New Street Additions (2006–2020)

SNDi value
3.66
Rank in Nigeria
160th of 422
Rank in Bauchi
7th of 13

Entire Network (Aggregate)

SNDi value
3.8
Rank in Nigeria
292nd of 422
Rank in Bauchi
10th of 13

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

What about similarly populated cities?

481216<19751976–19901991–20052006–2020SNDi of street additions
481216<19751976–19901991–20052006–2020SNDi of entire street network
DambamBishnupurKumarkhali

In new street additions, Dambam built increasingly connected streets over time, while Bishnupur built increasingly connected streets from 1975 through 1991-2005, then shifted to more disconnected patterns and Kumarkhali fluctuated in its street-construction patterns. For the full network, Dambam became progressively more connected, while Bishnupur became more connected from 1975 through 1991-2005, then grew more sprawly from 1991-2005 onwards and Kumarkhali fluctuated in connectivity. Notably, Dambam had a more sprawly network than Bishnupur in 1975 but the two have since reversed their relative ranking.