Marand in context: Street-network sprawl trends

Marand in context

3.644.44.8<19751976–19901991–20052006–2020SNDi of street additions
3.644.44.8<19751976–19901991–20052006–2020SNDi of entire street network
MarandEast Azarbaijan (Region)Iran (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Marand plotted against East Azarbaijan and Iran. All three follow the same trend in new construction, suggesting a shared regional pattern of development. Most recently, Marand's incremental SNDi rose from 4.28 to 4.56 between 1991-2005 and 2006-2020. In terms of the aggregate network, Marand ranked 7th out of 8 cities in East Azarbaijan and 152nd out of 169 in Iran as of 2020.

New Street Additions (2006–2020)

SNDi value
4.56
Rank in Iran
144th of 169
Rank in East Azarbaijan
8th of 8

Entire Network (Aggregate)

SNDi value
4.22
Rank in Iran
152nd of 169
Rank in East Azarbaijan
7th of 8

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

What about similarly populated cities?

246<19751976–19901991–20052006–2020SNDi of street additions
246<19751976–19901991–20052006–2020SNDi of entire street network
MarandLawrenceWuhe

In new street additions, Marand built increasingly disconnected streets over time, while Lawrence built increasingly disconnected streets from 1975 through 1976-1990, then improved and Wuhe fluctuated in its street-construction patterns. For the full network, Marand and Lawrence both became progressively more disconnected, while Wuhe fluctuated in connectivity. Marand and Lawrence have been growing further apart in their street-network character since 1975.