Oued Rhiou in context: Street-network sprawl trends

Oued Rhiou in context

2.733.3<19751976–19901991–20052006–2020SNDi of street additions
2.733.3<19751976–19901991–20052006–2020SNDi of entire street network
Oued RhiouRelizane (Region)Algeria (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Oued Rhiou plotted against Relizane and Algeria. While Relizane and Algeria both followed a zig-zag trend with an overall decrease, Oued Rhiou's new street additions followed a zig-zag trend with an overall increase. Most recently, Oued Rhiou's incremental SNDi rose from 2.57 to 2.76 between 1991-2005 and 2006-2020. In terms of the aggregate network, Oued Rhiou ranked 2nd out of 2 cities in Relizane and 76th out of 109 in Algeria as of 2020.

New Street Additions (2006–2020)

SNDi value
2.76
Rank in Algeria
72nd of 109
Rank in Relizane
2nd of 2

Entire Network (Aggregate)

SNDi value
2.66
Rank in Algeria
76th of 109
Rank in Relizane
2nd of 2

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

What about similarly populated cities?

2345<19751976–19901991–20052006–2020SNDi of street additions
2345<19751976–19901991–20052006–2020SNDi of entire street network
Oued RhiouAiyeteDinh Quan

In new street additions, Oued Rhiou and Aiyete both fluctuated in its street-construction patterns, while Định Quán built increasingly connected streets from 1975 through 1991-2005, then shifted to more disconnected patterns. For the full network, Oued Rhiou fluctuated in connectivity, while Aiyete became progressively more disconnected and Định Quán became more connected from 1975 through 1991-2005, then grew more sprawly from 1991-2005 onwards. Notably, Oued Rhiou had a more sprawly network than Aiyete in 1975 but the two have since reversed their relative ranking.