Messaad in context: Street-network sprawl trends

Messaad in context

1.21.82.433.6<19751976–19901991–20052006–2020SNDi of street additions
1.21.82.433.6<19751976–19901991–20052006–2020SNDi of entire street network
MessaadDjelfa (Region)Algeria (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Messaad plotted against Djelfa and Algeria. The SNDi of new construction in Messaad peaked in 1976-1990, compared to Djelfa which peaked in 1976-1990 and Algeria which followed a zig-zag trend with an overall decrease. Most recently, Messaad's incremental SNDi fell from 1.71 to 1.57 between 1991-2005 and 2006-2020. In terms of the aggregate network, Messaad ranked 4th out of 4 cities in Djelfa and 30th out of 109 in Algeria as of 2020.

New Street Additions (2006–2020)

SNDi value
1.57
Rank in Algeria
20th of 109
Rank in Djelfa
3rd of 4

Entire Network (Aggregate)

SNDi value
1.65
Rank in Algeria
30th of 109
Rank in Djelfa
4th of 4

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
MessaadFengtaiSoe

In new street additions, Messaad built increasingly disconnected streets from 1975 through 1976-1990, then improved, while Fengtai built increasingly disconnected streets from 1975 through 1991-2005, then improved and Soe built increasingly disconnected streets over time. Looking at the full network, Fengtai and Soe both became progressively more disconnected, while Messaad grew more disconnected from 1975 through 1991-2005, then improved.