Ngaoundéré in context: Street-network sprawl trends

Ngaoundere in context

2.73.64.55.4<19751976–19901991–20052006–2020SNDi of street additions
2.73.64.55.4<19751976–19901991–20052006–2020SNDi of entire street network
NgaoundereAdamaoua (Region)Cameroon (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Ngaoundéré plotted against Adamaoua and Cameroon. All three follow the same trend in new construction, suggesting a shared regional pattern of development. Most recently, Ngaoundéré's incremental SNDi rose from 3.63 to 3.78 between 1991-2005 and 2006-2020. In terms of the aggregate network, Ngaoundéré ranked 4th out of 5 cities in Adamaoua and 27th out of 44 in Cameroon as of 2020.

New Street Additions (2006–2020)

SNDi value
3.78
Rank in Cameroon
22nd of 44
Rank in Adamaoua
4th of 5

Entire Network (Aggregate)

SNDi value
3.33
Rank in Cameroon
27th of 44
Rank in Adamaoua
4th of 5

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

What about similarly populated cities?

1234<19751976–19901991–20052006–2020SNDi of street additions
1234<19751976–19901991–20052006–2020SNDi of entire street network
NgaoundereBoa VistaCangnan

In new street additions, Ngaoundéré and Cangnan both built increasingly disconnected streets over time, while Boa Vista fluctuated in its street-construction patterns. For the full network, Ngaoundéré and Cangnan both became progressively more disconnected, while Boa Vista fluctuated in connectivity. Ngaoundéré and Boa Vista have been growing further apart in their street-network character since 1975.