Lakhdaria in context: Street-network sprawl trends

Lakhdaria 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
LakhdariaBouira (Region)Algeria (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Lakhdaria plotted against Bouira and Algeria. The SNDi of new construction in Lakhdaria peaked in 1991-2005, compared to Bouira which fell steadily and Algeria which followed a zig-zag trend with an overall decrease. Most recently, Lakhdaria's incremental SNDi fell from 5.31 to 5.14 between 1991-2005 and 2006-2020. In terms of the aggregate network, Lakhdaria ranked 2nd out of 2 cities in Bouira and 100th out of 109 in Algeria as of 2020.

New Street Additions (2006–2020)

SNDi value
5.14
Rank in Algeria
98th of 109
Rank in Bouira
2nd of 2

Entire Network (Aggregate)

SNDi value
4.47
Rank in Algeria
100th of 109
Rank in Bouira
2nd of 2

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

What about similarly populated cities?

44.555.5<19751976–19901991–20052006–2020SNDi of street additions
44.555.5<19751976–19901991–20052006–2020SNDi of entire street network
LakhdariaSirdaryoLittlehampton

In new street additions, Lakhdaria and Littlehampton both built increasingly disconnected streets from 1975 through 1991-2005, then improved, while Sirdaryo fluctuated in its street-construction patterns. For the full street network, though, all three cities follow the same trend. Notably, Lakhdaria had a more connected network than Littlehampton in 1975 but the two have since reversed their relative ranking.