Vavoua in context: Street-network sprawl trends

Vavoua in context

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
VavouaSassandra-Marahoue (Region)Cote d'Ivoire (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Vavoua plotted against Sassandra-Marahoué and Côte d'Ivoire. The SNDi of new construction in Vavoua rose steadily, compared to Sassandra-Marahoué which followed a zig-zag trend with an overall increase and Côte d'Ivoire which followed a zig-zag trend with an overall increase. Most recently, Vavoua's incremental SNDi rose from 2.86 to 4.01 between 1991-2005 and 2006-2020. In terms of the aggregate network, Vavoua ranked 7th out of 7 cities in Sassandra-Marahoué and 23rd out of 39 in Côte d'Ivoire as of 2020.

New Street Additions (2006–2020)

SNDi value
4.01
Rank in Côte d'Ivoire
24th of 39
Rank in Sassandra-Marahoué
6th of 7

Entire Network (Aggregate)

SNDi value
2.65
Rank in Côte d'Ivoire
23rd of 39
Rank in Sassandra-Marahoué
7th of 7

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

What about similarly populated cities?

2468<19751976–19901991–20052006–2020SNDi of street additions
2468<19751976–19901991–20052006–2020SNDi of entire street network
VavouaEdeaBloomington

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