Mohammad Shahr in context: Street-network sprawl trends

Mohammad Shahr in context

3.544.55<19751976–19901991–20052006–2020SNDi of street additions
3.544.55<19751976–19901991–20052006–2020SNDi of entire street network
Mohammad ShahrAlborz (Region)Iran (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Mohammad Shahr plotted against Alborz and Iran. While Alborz and Iran both rose steadily, Mohammad Shahr's new street additions rose steadily. Most recently, Mohammad Shahr's incremental SNDi rose from 4.32 to 5.04 between 1991-2005 and 2006-2020. In terms of the aggregate network, Mohammad Shahr ranked 7th out of 7 cities in Alborz and 154th out of 169 in Iran as of 2020.

New Street Additions (2006–2020)

SNDi value
5.04
Rank in Iran
155th of 169
Rank in Alborz
7th of 7

Entire Network (Aggregate)

SNDi value
4.27
Rank in Iran
154th of 169
Rank in Alborz
7th of 7

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

What about similarly populated cities?

36912<19751976–19901991–20052006–2020SNDi of street additions
36912<19751976–19901991–20052006–2020SNDi of entire street network
Mohammad ShahrSukchonAnaco

In new street additions, Mohammad Shahr built increasingly disconnected streets over time, while Sukchon fluctuated in its street-construction patterns and Anaco fluctuated in its street-construction patterns. For the full network, Mohammad Shahr became progressively more disconnected, while Sukchon grew more disconnected from 1975 through 1991-2005, then improved and Anaco fluctuated in connectivity. Mohammad Shahr and Sukchon have been converging in their street-network character since 1975.