Laghouat in context: Street-network sprawl trends

Laghouat in context

22.533.5<19751976–19901991–20052006–2020SNDi of street additions
22.533.5<19751976–19901991–20052006–2020SNDi of entire street network
LaghouatAlgeria (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Laghouat plotted against Algeria. The SNDi of new construction in Laghouat was at its lowest in 1991-2005, while Algeria followed a zig-zag trend with an overall decrease. Most recently, Laghouat's incremental SNDi rose from 1.71 to 1.74 between 1991-2005 and 2006-2020. In terms of the aggregate network, Laghouat ranked 49th out of 109 in Algeria as of 2020.

New Street Additions (2006–2020)

SNDi value
1.74
Rank in Algeria
30th of 109

Entire Network (Aggregate)

SNDi value
2.02
Rank in Algeria
49th of 109

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

What about similarly populated cities?

1.622.4<19751976–19901991–20052006–2020SNDi of street additions
1.622.4<19751976–19901991–20052006–2020SNDi of entire street network
LaghouatBecharHancheng

In new street additions, Laghouat built increasingly connected streets from 1975 through 1991-2005, then shifted to more disconnected patterns, while Bechar built increasingly disconnected streets from 1975 through 1976-1990, then improved and Hancheng fluctuated in its street-construction patterns. Looking at the full network, Bechar and Hancheng both grew more disconnected from 1975 through 1976-1990, then improved, while Laghouat became progressively more connected. Laghouat and Hancheng have been converging in their street-network character since 1975.