Tal Afar in context: Street-network sprawl trends

Tal Afar in context

2.42.83.23.6<19751976–19901991–20052006–2020SNDi of street additions
2.42.83.23.6<19751976–19901991–20052006–2020SNDi of entire street network
Tal AfarNinawa (Region)Iraq (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Tal Afar plotted against Ninawa and Iraq. The SNDi of new construction in Tal Afar rose steadily, compared to Ninawa which peaked in 1991-2005 and Iraq which peaked in 1976-1990. Most recently, Tal Afar's incremental SNDi rose from 3.05 to 3.12 between 1991-2005 and 2006-2020. In terms of the aggregate network, Tal Afar ranked 4th out of 12 cities in Ninawa and 49th out of 86 in Iraq as of 2020.

New Street Additions (2006–2020)

SNDi value
3.12
Rank in Iraq
62nd of 86
Rank in Ninawa
5th of 12

Entire Network (Aggregate)

SNDi value
2.63
Rank in Iraq
49th of 86
Rank in Ninawa
4th of 12

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

What about similarly populated cities?

1.522.53<19751976–19901991–20052006–2020SNDi of street additions
1.522.53<19751976–19901991–20052006–2020SNDi of entire street network
Tal AfarLubbockAz Zubayr

In new street additions, Tal Afar and Lubbock both built increasingly disconnected streets over time, while Az Zubayr fluctuated in its street-construction patterns. For the full street network, though, all three cities follow the same trend.