Ouèssè in context: Street-network sprawl trends

Ouesse in context

1.62.43.24<19751976–19901991–20052006–2020SNDi of street additions
1.62.43.24<19751976–19901991–20052006–2020SNDi of entire street network
OuesseCollines (Region)Benin (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Ouèssè plotted against Collines and Benin. The SNDi of new construction in Ouèssè peaked in 1991-2005, compared to Collines which followed a zig-zag trend with an overall increase and Benin which followed a zig-zag trend with an overall increase. Most recently, Ouèssè's incremental SNDi fell from 3.16 to 2.6 between 1991-2005 and 2006-2020. In terms of the aggregate network, Ouèssè ranked 1st out of 4 cities in Collines and 15th out of 24 in Benin as of 2020.

New Street Additions (2006–2020)

SNDi value
2.6
Rank in Benin
9th of 24
Rank in Collines
1st of 4

Entire Network (Aggregate)

SNDi value
2.38
Rank in Benin
15th of 24
Rank in Collines
1st of 4

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

What about similarly populated cities?

0369<19751976–19901991–20052006–2020SNDi of street additions
0369<19751976–19901991–20052006–2020SNDi of entire street network
OuesseTashlakNiangoloko

In new street additions, Ouèssè and Tashlak both built increasingly disconnected streets from 1975 through 1991-2005, then improved, while Niangoloko built increasingly disconnected streets over time. For the full network, Ouèssè and Niangoloko both became progressively more disconnected, while Tashlak grew more disconnected from 1975 through 1991-2005, then improved. Ouèssè and Niangoloko have been growing further apart in their street-network character since 1975.