Guemar in context: Street-network sprawl trends

Guemar 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
GuemarEl Oued (Region)Algeria (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Guemar plotted against El Oued and Algeria. The SNDi of new construction in Guemar was at its lowest in 1991-2005, compared to El Oued which fell steadily and Algeria which followed a zig-zag trend with an overall decrease. Most recently, Guemar's incremental SNDi rose from 1.12 to 1.29 between 1991-2005 and 2006-2020. In terms of the aggregate network, Guemar ranked 3rd out of 4 cities in El Oued and 5th out of 109 in Algeria as of 2020.

New Street Additions (2006–2020)

SNDi value
1.29
Rank in Algeria
7th of 109
Rank in El Oued
4th of 4

Entire Network (Aggregate)

SNDi value
1.26
Rank in Algeria
5th of 109
Rank in El Oued
3rd of 4

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

What about similarly populated cities?

12345<19751976–19901991–20052006–2020SNDi of street additions
12345<19751976–19901991–20052006–2020SNDi of entire street network
GuemarGhammasJesse

In new street additions, Guemar built increasingly connected streets from 1975 through 1991-2005, then shifted to more disconnected patterns, while Ghammas built increasingly disconnected streets over time and Jesse built increasingly connected streets from 1975 through 1976-1990, then shifted to more disconnected patterns. For the full network, Guemar became more connected from 1975 through 1991-2005, then grew more sprawly from 1991-2005 onwards, while Ghammas became progressively more disconnected and Jesse became more connected from 1975 through 1976-1990, then grew more sprawly from 1976-1990 onwards. Guemar and Ghammas have been growing further apart in their street-network character since 1975.