Firuzabad in context: Street-network sprawl trends

Firuzabad in context

2.533.54<19751976–19901991–20052006–2020SNDi of street additions
2.533.54<19751976–19901991–20052006–2020SNDi of entire street network
FiruzabadFars (Region)Iran (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Firuzabad plotted against Fars and Iran. The SNDi of new construction in Firuzabad followed a zig-zag trend with an overall increase, compared to Fars which followed a zig-zag trend with an overall increase and Iran which rose steadily. Most recently, Firuzabad's incremental SNDi rose from 2.93 to 3.34 between 1991-2005 and 2006-2020. In terms of the aggregate network, Firuzabad ranked 4th out of 11 cities in Fars and 77th out of 169 in Iran as of 2020.

New Street Additions (2006–2020)

SNDi value
3.34
Rank in Iran
83rd of 169
Rank in Fars
6th of 11

Entire Network (Aggregate)

SNDi value
2.86
Rank in Iran
77th of 169
Rank in Fars
4th of 11

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

What about similarly populated cities?

2.43.244.8<19751976–19901991–20052006–2020SNDi of street additions
2.43.244.8<19751976–19901991–20052006–2020SNDi of entire street network
FiruzabadPekkabataAira

In new street additions, Firuzabad and Aira both fluctuated in its street-construction patterns, while Pekkabata built increasingly disconnected streets from 1975 through 1991-2005, then improved. For the full street network, though, all three cities follow the same trend. Firuzabad and Pekkabata have been growing further apart in their street-network character since 1975.