Tamacine in context: Street-network sprawl trends

Tamacine in context

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
TamacineOuargla (Region)Algeria (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Tamacine plotted against Ouargla and Algeria. The SNDi of new construction in Tamacine peaked in 1976-1990, compared to Ouargla which followed a zig-zag trend with an overall decrease and Algeria which followed a zig-zag trend with an overall decrease. Most recently, Tamacine's incremental SNDi fell from 1.18 to 1.12 between 1991-2005 and 2006-2020. In terms of the aggregate network, Tamacine ranked 1st out of 3 cities in Ouargla and 7th out of 109 in Algeria as of 2020.

New Street Additions (2006–2020)

SNDi value
1.12
Rank in Algeria
1st of 109
Rank in Ouargla
1st of 3

Entire Network (Aggregate)

SNDi value
1.31
Rank in Algeria
7th of 109
Rank in Ouargla
1st of 3

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

What about similarly populated cities?

1.21.82.43<19751976–19901991–20052006–2020SNDi of street additions
1.21.82.43<19751976–19901991–20052006–2020SNDi of entire street network
TamacineArganda del ReyGrande Prairie

In new street additions, Tamacine and Arganda del Rey both built increasingly disconnected streets from 1975 through 1976-1990, then improved, while Grande Prairie built increasingly disconnected streets from 1975 through 1991-2005, then improved. For the full network, Tamacine and Arganda del Rey both grew more disconnected from 1975 through 1976-1990, then improved, while Grande Prairie grew more disconnected from 1975 through 1991-2005, then improved.