Aflou in context: Street-network sprawl trends

Aflou in context

1.21.82.433.6<19751976–19901991–20052006–2020SNDi of street additions
1.21.82.433.6<19751976–19901991–20052006–2020SNDi of entire street network
AflouLaghouat (Region)Algeria (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Aflou plotted against Laghouat and Algeria. The SNDi of new construction in Aflou was at its lowest in 1991-2005, compared to Laghouat which was at its lowest in 1991-2005 and Algeria which followed a zig-zag trend with an overall decrease. Most recently, Aflou's incremental SNDi rose from 1.4 to 1.72 between 1991-2005 and 2006-2020. In terms of the aggregate network, Aflou ranked 1st out of 2 cities in Laghouat and 33rd out of 109 in Algeria as of 2020.

New Street Additions (2006–2020)

SNDi value
1.72
Rank in Algeria
29th of 109
Rank in Laghouat
1st of 2

Entire Network (Aggregate)

SNDi value
1.67
Rank in Algeria
33rd of 109
Rank in Laghouat
1st of 2

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
AflouAyangbaSiddipet

While Ayangba and Siddipet both built increasingly disconnected streets over time, Aflou built increasingly connected streets from 1975 through 1991-2005, then shifted to more disconnected patterns in new street additions. Looking at the full network, Ayangba and Siddipet both became progressively more disconnected, while Aflou became more connected from 1975 through 1991-2005, then grew more sprawly from 1991-2005 onwards. Notably, Aflou had a more sprawly network than Ayangba in 1975 but the two have since reversed their relative ranking.