Soran in context: Street-network sprawl trends

Soran in context

2.43.244.8<19751976–19901991–20052006–2020SNDi of street additions
2.43.244.8<19751976–19901991–20052006–2020SNDi of entire street network
SoranArbil (Region)Iraq (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Soran plotted against Arbil and Iraq. While Arbil and Iraq both peaked in 1976-1990, Soran's new street additions peaked in 1976-1990. Most recently, Soran's incremental SNDi fell from 2.76 to 2.73 between 1991-2005 and 2006-2020. In terms of the aggregate network, Soran ranked 3rd out of 3 cities in Arbil and 60th out of 86 in Iraq as of 2020.

New Street Additions (2006–2020)

SNDi value
2.73
Rank in Iraq
43rd of 86
Rank in Arbil
2nd of 3

Entire Network (Aggregate)

SNDi value
2.87
Rank in Iraq
60th of 86
Rank in Arbil
3rd of 3

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

What about similarly populated cities?

3456<19751976–19901991–20052006–2020SNDi of street additions
3456<19751976–19901991–20052006–2020SNDi of entire street network
SoranGhardaiaSar-e Pol

In new street additions, Soran and Sar-e Pol both built increasingly disconnected streets from 1975 through 1976-1990, then improved, while Ghardaia fluctuated in its street-construction patterns. For the full network, Soran grew more disconnected from 1975 through 1976-1990, then improved, while Ghardaia fluctuated in connectivity and Sar-e Pol grew more disconnected from 1975 through 1991-2005, then improved. Notably, Soran had a more sprawly network than Ghardaia in 1975 but the two have since reversed their relative ranking.