Whydah in context: Street-network sprawl trends

Whydah in context

2.12.83.54.2<19751976–19901991–20052006–2020SNDi of street additions
2.12.83.54.2<19751976–19901991–20052006–2020SNDi of entire street network
WhydahAtlantique (Region)Benin (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Whydah plotted against Atlantique and Benin. All three follow the same trend in new construction, suggesting a shared regional pattern of development. Most recently, Whydah's incremental SNDi rose from 2.99 to 3.39 between 1991-2005 and 2006-2020. In terms of the aggregate network, Whydah ranked 2nd out of 3 cities in Atlantique and 20th out of 24 in Benin as of 2020.

New Street Additions (2006–2020)

SNDi value
3.39
Rank in Benin
18th of 24
Rank in Atlantique
2nd of 3

Entire Network (Aggregate)

SNDi value
2.69
Rank in Benin
20th of 24
Rank in Atlantique
2nd of 3

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
WhydahJiawangBanka

In new street additions, Whydah fluctuated in its street-construction patterns, while Jiawang built increasingly connected streets from 1975 through 1991-2005, then shifted to more disconnected patterns and Banka built increasingly disconnected streets over time. For the full network, Whydah and Banka both became progressively more disconnected, while Jiawang grew more disconnected from 1975 through 1976-1990, then improved. Whydah and Jiawang have been growing further apart in their street-network character since 1975.