Dolatabad in context: Street-network sprawl trends

Dolatabad in context

3.33.63.94.2<19751976–19901991–20052006–2020SNDi of street additions
3.33.63.94.2<19751976–19901991–20052006–2020SNDi of entire street network
DolatabadEsfahan (Region)Iran (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Dolatabad plotted against Esfahan and Iran. The SNDi of new construction in Dolatabad was at its lowest in 1991-2005, compared to Esfahan which followed a zig-zag trend with an overall decrease and Iran which rose steadily. Most recently, Dolatabad's incremental SNDi rose from 3.56 to 3.82 between 1991-2005 and 2006-2020. In terms of the aggregate network, Dolatabad ranked 6th out of 8 cities in Esfahan and 143rd out of 169 in Iran as of 2020.

New Street Additions (2006–2020)

SNDi value
3.82
Rank in Iran
117th of 169
Rank in Esfahan
5th of 8

Entire Network (Aggregate)

SNDi value
3.91
Rank in Iran
143rd of 169
Rank in Esfahan
6th of 8

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

What about similarly populated cities?

1.82.73.64.5<19751976–19901991–20052006–2020SNDi of street additions
1.82.73.64.5<19751976–19901991–20052006–2020SNDi of entire street network
DolatabadTrentonAmbo

While Trenton and Ambo both built increasingly disconnected streets over time, Dolatabad built increasingly connected streets from 1975 through 1991-2005, then shifted to more disconnected patterns in new street additions. Looking at the full network, Trenton and Ambo both became progressively more disconnected, while Dolatabad became progressively more connected. Dolatabad and Ambo have been converging in their street-network character since 1975.