As Samawah in context: Street-network sprawl trends

As Samawah in context

2.42.733.3<19751976–19901991–20052006–2020SNDi of street additions
2.42.733.3<19751976–19901991–20052006–2020SNDi of entire street network
As SamawahAl-Muthannia (Region)Iraq (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with As Samawah plotted against Al-Muthannia and Iraq. The SNDi of new construction in As Samawah rose steadily, compared to Al-Muthannia which was at its lowest in 1991-2005 and Iraq which peaked in 1976-1990. Most recently, As Samawah's incremental SNDi rose from 2.49 to 2.79 between 1991-2005 and 2006-2020. In terms of the aggregate network, As Samawah ranked 1st out of 3 cities in Al-Muthannia and 36th out of 86 in Iraq as of 2020.

New Street Additions (2006–2020)

SNDi value
2.79
Rank in Iraq
48th of 86
Rank in Al-Muthannia
1st of 3

Entire Network (Aggregate)

SNDi value
2.44
Rank in Iraq
36th of 86
Rank in Al-Muthannia
1st of 3

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

What about similarly populated cities?

2.73.64.55.4<19751976–19901991–20052006–2020SNDi of street additions
2.73.64.55.4<19751976–19901991–20052006–2020SNDi of entire street network
As SamawahBariNag Hammadi

In new street additions, As Samawah built increasingly disconnected streets over time, while Bari fluctuated in its street-construction patterns and Nag Hammadi built increasingly disconnected streets from 1975 through 1991-2005, then improved. For the full street network, though, all three cities follow the same trend.