Annaba in context: Street-network sprawl trends

Annaba in context

2.83.54.24.9<19751976–19901991–20052006–2020SNDi of street additions
2.83.54.24.9<19751976–19901991–20052006–2020SNDi of entire street network
AnnabaAlgeria (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Annaba plotted against Algeria. The SNDi of new construction in Annaba peaked in 1991-2005, while Algeria followed a zig-zag trend with an overall decrease. Most recently, Annaba's incremental SNDi fell from 5.01 to 4.63 between 1991-2005 and 2006-2020. In terms of the aggregate network, Annaba ranked 87th out of 109 in Algeria as of 2020.

New Street Additions (2006–2020)

SNDi value
4.63
Rank in Algeria
94th of 109

Entire Network (Aggregate)

SNDi value
3.72
Rank in Algeria
87th of 109

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
AnnabaAnshunM'bour

While Anshun and M'bour both fluctuated in its street-construction patterns, Annaba built increasingly disconnected streets from 1975 through 1991-2005, then improved in new street additions. For the full network, Annaba and Anshun both became progressively more disconnected, while M'bour fluctuated in connectivity. Annaba and Anshun have been growing further apart in their street-network character since 1975.