Ras El Oued in context: Street-network sprawl trends

Ras El Oued in context

0.81.62.43.2<19751976–19901991–20052006–2020SNDi of street additions
0.81.62.43.2<19751976–19901991–20052006–2020SNDi of entire street network
Ras El OuedBordj Bou Arreridj (Region)Algeria (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Ras El Oued plotted against Bordj Bou Arréridj and Algeria. The SNDi of new construction in Ras El Oued rose steadily, compared to Bordj Bou Arréridj which followed a zig-zag trend with an overall decrease and Algeria which followed a zig-zag trend with an overall decrease. Most recently, Ras El Oued's incremental SNDi rose from 1.46 to 2.21 between 1991-2005 and 2006-2020. In terms of the aggregate network, Ras El Oued ranked 1st out of 2 cities in Bordj Bou Arréridj and 16th out of 109 in Algeria as of 2020.

New Street Additions (2006–2020)

SNDi value
2.21
Rank in Algeria
49th of 109
Rank in Bordj Bou Arréridj
1st of 2

Entire Network (Aggregate)

SNDi value
1.44
Rank in Algeria
16th of 109
Rank in Bordj Bou Arréridj
1st of 2

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

What about similarly populated cities?

1.42.12.83.5<19751976–19901991–20052006–2020SNDi of street additions
1.42.12.83.5<19751976–19901991–20052006–2020SNDi of entire street network
Ras El OuedCarazinhoCarpi

Ras El Oued, Carazinho, and Carpi all built increasingly disconnected streets over time in new street construction. The same pattern holds for the full street network.