Bamako in context: Street-network sprawl trends

Bamako in context

1.82.433.6<19751976–19901991–20052006–2020SNDi of street additions
1.82.433.6<19751976–19901991–20052006–2020SNDi of entire street network
BamakoMali (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Bamako plotted against Mali. The SNDi of new construction in Bamako rose steadily, while Mali followed a zig-zag trend with an overall increase. Most recently, Bamako's incremental SNDi rose from 3.09 to 3.84 between 1991-2005 and 2006-2020. In terms of the aggregate network, Bamako ranked 19th out of 22 in Mali as of 2020.

New Street Additions (2006–2020)

SNDi value
3.84
Rank in Mali
20th of 22

Entire Network (Aggregate)

SNDi value
2.72
Rank in Mali
19th of 22

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

What about similarly populated cities?

2.43.244.8<19751976–19901991–20052006–2020SNDi of street additions
2.43.244.8<19751976–19901991–20052006–2020SNDi of entire street network
BamakoMultanSana'a

In new street additions, Bamako built increasingly disconnected streets over time, while Multan built increasingly disconnected streets from 1975 through 1991-2005, then improved and Sana'a fluctuated in its street-construction patterns. For the full street network, though, all three cities follow the same trend. Notably, Bamako had a more connected network than Sana'a in 1975 but the two have since reversed their relative ranking.