Gonbad-e Qabus in context: Street-network sprawl trends

Gonbad-e Qabus in context

3.23.644.4<19751976–19901991–20052006–2020SNDi of street additions
3.23.644.4<19751976–19901991–20052006–2020SNDi of entire street network
Gonbad-e QabusGolestan (Region)Iran (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Gonbad-e Qabus plotted against Golestan and Iran. All three follow the same trend in new construction, suggesting a shared regional pattern of development. Most recently, Gonbad-e Qabus's incremental SNDi rose from 3.82 to 3.93 between 1991-2005 and 2006-2020. In terms of the aggregate network, Gonbad-e Qabus ranked 3rd out of 4 cities in Golestan and 116th out of 169 in Iran as of 2020.

New Street Additions (2006–2020)

SNDi value
3.93
Rank in Iran
124th of 169
Rank in Golestan
2nd of 4

Entire Network (Aggregate)

SNDi value
3.44
Rank in Iran
116th of 169
Rank in Golestan
3rd of 4

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

What about similarly populated cities?

2.533.54<19751976–19901991–20052006–2020SNDi of street additions
2.533.54<19751976–19901991–20052006–2020SNDi of entire street network
Gonbad-e QabusIringaJampur

In new street additions, Gonbad-e Qabus built increasingly disconnected streets over time, while Iringa fluctuated in its street-construction patterns and Jampur built increasingly disconnected streets from 1975 through 1991-2005, then improved. For the full street network, though, all three cities follow the same trend. Gonbad-e Qabus and Jampur have been converging in their street-network character since 1975.