Dezful in context: Street-network sprawl trends

Dezful in context

1.42.12.83.5<19751976–19901991–20052006–2020SNDi of street additions
1.42.12.83.5<19751976–19901991–20052006–2020SNDi of entire street network
DezfulKhuzestan (Region)Iran (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Dezful plotted against Khuzestan and Iran. All three follow the same trend in new construction, suggesting a shared regional pattern of development. Most recently, Dezful's incremental SNDi rose from 2.39 to 2.69 between 1991-2005 and 2006-2020. In terms of the aggregate network, Dezful ranked 1st out of 15 cities in Khuzestan and 10th out of 169 in Iran as of 2020.

New Street Additions (2006–2020)

SNDi value
2.69
Rank in Iran
39th of 169
Rank in Khuzestan
3rd of 15

Entire Network (Aggregate)

SNDi value
2.03
Rank in Iran
10th of 169
Rank in Khuzestan
1st of 15

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

What about similarly populated cities?

123456<19751976–19901991–20052006–2020SNDi of street additions
123456<19751976–19901991–20052006–2020SNDi of entire street network
DezfulSaint-LouisPutuo District

While Saint-Louis and Putuo District both fluctuated in its street-construction patterns, Dezful built increasingly disconnected streets over time in new street additions. For the full network, Dezful and Saint-Louis both became progressively more disconnected, while Putuo District fluctuated in connectivity. Dezful and Saint-Louis have been converging in their street-network character since 1975.