Fallujah in context: Street-network sprawl trends

Fallujah in context

22.42.83.2<19751976–19901991–20052006–2020SNDi of street additions
22.42.83.2<19751976–19901991–20052006–2020SNDi of entire street network
FallujahAl-Anbar (Region)Iraq (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Fallujah plotted against Al-Anbar and Iraq. The SNDi of new construction in Fallujah followed a zig-zag trend with an overall increase, compared to Al-Anbar which peaked in 1991-2005 and Iraq which peaked in 1976-1990. Most recently, Fallujah's incremental SNDi rose from 2.02 to 2.32 between 1991-2005 and 2006-2020. In terms of the aggregate network, Fallujah ranked 1st out of 6 cities in Al-Anbar and 10th out of 86 in Iraq as of 2020.

New Street Additions (2006–2020)

SNDi value
2.32
Rank in Iraq
26th of 86
Rank in Al-Anbar
1st of 6

Entire Network (Aggregate)

SNDi value
2.0
Rank in Iraq
10th of 86
Rank in Al-Anbar
1st of 6

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

What about similarly populated cities?

1.622.42.8<19751976–19901991–20052006–2020SNDi of street additions
1.622.42.8<19751976–19901991–20052006–2020SNDi of entire street network
FallujahCiudad VictoriaShuozhou

In new street additions, Fallujah fluctuated in its street-construction patterns, while Ciudad Victoria built increasingly disconnected streets over time and Shuozhou built increasingly connected streets from 1975 through 1991-2005, then shifted to more disconnected patterns. For the full network, Fallujah and Ciudad Victoria both became progressively more disconnected, while Shuozhou became progressively more connected. Notably, Fallujah had a more sprawly network than Ciudad Victoria in 1975 but the two have since reversed their relative ranking.