Bou Saada in context: Street-network sprawl trends

Bou Saada in context

1.82.433.6<19751976–19901991–20052006–2020SNDi of street additions
1.82.433.6<19751976–19901991–20052006–2020SNDi of entire street network
Bou SaadaM'Sila (Region)Algeria (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Bou Saada plotted against M'Sila and Algeria. All three follow the same trend in new construction, suggesting a shared regional pattern of development. Most recently, Bou Saada's incremental SNDi rose from 1.76 to 1.92 between 1991-2005 and 2006-2020. In terms of the aggregate network, Bou Saada ranked 2nd out of 4 cities in M'Sila and 39th out of 109 in Algeria as of 2020.

New Street Additions (2006–2020)

SNDi value
1.92
Rank in Algeria
36th of 109
Rank in M'Sila
2nd of 4

Entire Network (Aggregate)

SNDi value
1.79
Rank in Algeria
39th of 109
Rank in M'Sila
2nd of 4

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
Bou SaadaAlabamaTarkeshwar

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