Biskra in context: Street-network sprawl trends

Biskra in context

1.522.533.5<19751976–19901991–20052006–2020SNDi of street additions
1.522.533.5<19751976–19901991–20052006–2020SNDi of entire street network
BiskraAlgeria (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Biskra plotted against Algeria. The SNDi of new construction in Biskra fell steadily, while Algeria followed a zig-zag trend with an overall decrease. Most recently, Biskra's incremental SNDi fell from 1.69 to 1.69 between 1991-2005 and 2006-2020. In terms of the aggregate network, Biskra ranked 38th out of 109 in Algeria as of 2020.

New Street Additions (2006–2020)

SNDi value
1.69
Rank in Algeria
27th of 109

Entire Network (Aggregate)

SNDi value
1.78
Rank in Algeria
38th of 109

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
BiskraShaistaganjChidambaram

In new street additions, Biskra built increasingly connected streets over time, while Shaistaganj built increasingly disconnected streets from 1975 through 1991-2005, then improved and Chidambaram built increasingly disconnected streets over time. Looking at the full network, Shaistaganj and Chidambaram both became progressively more disconnected, while Biskra became progressively more connected. Biskra and Shaistaganj have been growing further apart in their street-network character since 1975.