Aboisso in context: Street-network sprawl trends

Aboisso in context

2468<19751976–19901991–20052006–2020SNDi of street additions
2468<19751976–19901991–20052006–2020SNDi of entire street network
AboissoComoe (Region)Cote d'Ivoire (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Aboisso plotted against Comoé and Côte d'Ivoire. The SNDi of new construction in Aboisso rose steadily, compared to Comoé 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, Aboisso's incremental SNDi rose from 5.49 to 7.58 between 1991-2005 and 2006-2020. In terms of the aggregate network, Aboisso ranked 4th out of 4 cities in Comoé and 39th out of 39 in Côte d'Ivoire as of 2020.

New Street Additions (2006–2020)

SNDi value
7.58
Rank in Côte d'Ivoire
39th of 39
Rank in Comoé
4th of 4

Entire Network (Aggregate)

SNDi value
4.28
Rank in Côte d'Ivoire
39th of 39
Rank in Comoé
4th of 4

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
AboissoGrossetoAwlad Yehia Qibly

In new street additions, Aboisso and Awlad Yehia Qibly both built increasingly disconnected streets over time, while Grosseto built increasingly disconnected streets from 1975 through 1991-2005, then improved. For the full street network, though, all three cities follow the same trend. Aboisso and Grosseto have been growing further apart in their street-network character since 1975.