Bohicon in context: Street-network sprawl trends

Bohicon in context

1.42.12.83.54.2<19751976–19901991–20052006–2020SNDi of street additions
1.42.12.83.54.2<19751976–19901991–20052006–2020SNDi of entire street network
BohiconZou (Region)Benin (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Bohicon plotted against Zou and Benin. The SNDi of new construction in Bohicon rose steadily, compared to Zou which peaked in 1991-2005 and Benin which followed a zig-zag trend with an overall increase. Most recently, Bohicon's incremental SNDi rose from 1.93 to 2.07 between 1991-2005 and 2006-2020. In terms of the aggregate network, Bohicon ranked 2nd out of 3 cities in Zou and 4th out of 24 in Benin as of 2020.

New Street Additions (2006–2020)

SNDi value
2.07
Rank in Benin
3rd of 24
Rank in Zou
1st of 3

Entire Network (Aggregate)

SNDi value
1.83
Rank in Benin
4th of 24
Rank in Zou
2nd of 3

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

What about similarly populated cities?

12345<19751976–19901991–20052006–2020SNDi of street additions
12345<19751976–19901991–20052006–2020SNDi of entire street network
BohiconVitoria-GasteizAdo

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