Abadan in context: Street-network sprawl trends

Abadan in context

2.733.33.6<19751976–19901991–20052006–2020SNDi of street additions
2.733.33.6<19751976–19901991–20052006–2020SNDi of entire street network
AbadanKhuzestan (Region)Iran (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Abadan plotted against Khuzestan and Iran. All three follow the same trend in new construction, suggesting a shared regional pattern of development. Most recently, Abadan's incremental SNDi rose from 3.37 to 3.64 between 1991-2005 and 2006-2020. In terms of the aggregate network, Abadan ranked 11th out of 15 cities in Khuzestan and 73rd out of 169 in Iran as of 2020.

New Street Additions (2006–2020)

SNDi value
3.64
Rank in Iran
109th of 169
Rank in Khuzestan
11th of 15

Entire Network (Aggregate)

SNDi value
2.84
Rank in Iran
73rd of 169
Rank in Khuzestan
11th of 15

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

What about similarly populated cities?

1.82.433.6<19751976–19901991–20052006–2020SNDi of street additions
1.82.433.6<19751976–19901991–20052006–2020SNDi of entire street network
AbadanKharupetiaTaihe

In new street additions, Abadan built increasingly disconnected streets over time, while Kharupetia fluctuated in its street-construction patterns and Taihe built increasingly connected streets from 1975 through 1976-1990, then shifted to more disconnected patterns. For the full network, Abadan became progressively more disconnected, while Kharupetia fluctuated in connectivity and Taihe became progressively more connected. Abadan and Kharupetia have been converging in their street-network character since 1975.