Khorramshahr in context: Street-network sprawl trends

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Khorramshahr plotted against Khuzestan and Iran. The SNDi of new construction in Khorramshahr was at its lowest in 1976-1990, compared to Khuzestan which rose steadily and Iran which rose steadily. Most recently, Khorramshahr's incremental SNDi rose from 2.69 to 4.75 between 1991-2005 and 2006-2020. In terms of the aggregate network, Khorramshahr ranked 10th out of 15 cities in Khuzestan and 72nd out of 169 in Iran as of 2020.

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

What about similarly populated cities?

• Jincheng, China
• Phyongsan, North Korea
• Welenchete, Ethiopia
• Totonicapán, Guatemala
• Al Mafraq, Jordan
• Jagraon, India

In new street additions, Khorramshahr and Jincheng both built increasingly connected streets from 1975 through 1976-1990, then shifted to more disconnected patterns, while Totonicapán built increasingly disconnected streets from 1975 through 1991-2005, then improved. For the full network, Khorramshahr became more connected from 1975 through 1991-2005, then grew more sprawly from 1991-2005 onwards, while Jincheng became more connected from 1975 through 1976-1990, then grew more sprawly from 1976-1990 onwards and Totonicapán became progressively more disconnected. Khorramshahr and Totonicapán have been growing further apart in their street-network character since 1975.