Bertoua in context: Street-network sprawl trends

Bertoua in context

3.244.85.6<19751976–19901991–20052006–2020SNDi of street additions
3.244.85.6<19751976–19901991–20052006–2020SNDi of entire street network
BertouaEst (Region)Cameroon (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Bertoua plotted against Est and Cameroon. The SNDi of new construction in Bertoua followed a zig-zag trend with an overall increase, compared to Est which rose steadily and Cameroon which rose steadily. Most recently, Bertoua's incremental SNDi rose from 4.08 to 5.17 between 1991-2005 and 2006-2020. In terms of the aggregate network, Bertoua ranked 2nd out of 3 cities in Est and 33rd out of 44 in Cameroon as of 2020.

New Street Additions (2006–2020)

SNDi value
5.17
Rank in Cameroon
29th of 44
Rank in Est
2nd of 3

Entire Network (Aggregate)

SNDi value
4.17
Rank in Cameroon
33rd of 44
Rank in Est
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
BertouaFeichengLubbock

In new street additions, Bertoua fluctuated in its street-construction patterns, while Feicheng built increasingly disconnected streets from 1975 through 1976-1990, then improved and Lubbock built increasingly disconnected streets over time. For the full network, Bertoua and Lubbock both became progressively more disconnected, while Feicheng grew more disconnected from 1975 through 1976-1990, then improved. Bertoua and Feicheng have been converging in their street-network character since 1975.