Yaoundé in context: Street-network sprawl trends

Yaounde in context

456<19751976–19901991–20052006–2020SNDi of street additions
456<19751976–19901991–20052006–2020SNDi of entire street network
YaoundeCentre (Region)Cameroon (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Yaoundé plotted against Centre and Cameroon. All three follow the same trend in new construction, suggesting a shared regional pattern of development. Most recently, Yaoundé's incremental SNDi rose from 5.47 to 6.38 between 1991-2005 and 2006-2020. In terms of the aggregate network, Yaoundé ranked 3rd out of 3 cities in Centre and 40th out of 44 in Cameroon as of 2020.

New Street Additions (2006–2020)

SNDi value
6.38
Rank in Cameroon
35th of 44
Rank in Centre
2nd of 3

Entire Network (Aggregate)

SNDi value
4.94
Rank in Cameroon
40th of 44
Rank in Centre
3rd of 3

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

What about similarly populated cities?

23456<19751976–19901991–20052006–2020SNDi of street additions
23456<19751976–19901991–20052006–2020SNDi of entire street network
YaoundeRecifeTaiyuan

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