Niono-Socoura in context: Street-network sprawl trends

Niono-Socoura 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
Niono-SocouraSegou (Region)Mali (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Niono-Socoura plotted against Ségou and Mali. The SNDi of new construction in Niono-Socoura peaked in 1991-2005, compared to Ségou which peaked in 1976-1990 and Mali which followed a zig-zag trend with an overall increase. Most recently, Niono-Socoura's incremental SNDi fell from 3.54 to 3.23 between 1991-2005 and 2006-2020. In terms of the aggregate network, Niono-Socoura ranked 3rd out of 3 cities in Ségou and 20th out of 22 in Mali as of 2020.

New Street Additions (2006–2020)

SNDi value
3.23
Rank in Mali
17th of 22
Rank in Ségou
3rd of 3

Entire Network (Aggregate)

SNDi value
2.83
Rank in Mali
20th of 22
Rank in Ségou
3rd of 3

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

What about similarly populated cities?

2345<19751976–19901991–20052006–2020SNDi of street additions
2345<19751976–19901991–20052006–2020SNDi of entire street network
Niono-SocouraTaneneGugang

In new street additions, Niono-Socoura built increasingly disconnected streets from 1975 through 1991-2005, then improved, while Tanene built increasingly disconnected streets over time and Gugang built increasingly connected streets from 1975 through 1991-2005, then shifted to more disconnected patterns. For the full network, Niono-Socoura and Tanene both became progressively more disconnected, while Gugang became progressively more connected. Notably, Niono-Socoura had a more sprawly network than Tanene in 1975 but the two have since reversed their relative ranking.