Malayer 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 Malayer plotted against Hamadan and Iran. The SNDi of new construction in Malayer was at its lowest in 1976-1990, compared to Hamadan which was at its lowest in 1976-1990 and Iran which rose steadily. Most recently, Malayer's incremental SNDi rose from 3.0 to 3.19 between 1991-2005 and 2006-2020. In terms of the aggregate network, Malayer ranked 3rd out of 5 cities in Hamadan and 88th 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?

• Wereta, Ethiopia
• Daytona Beach, United States
• Salempur, India
• Jeypore, India
• Dibai, India
• Calabozo, Venezuela

In new street additions, Malayer built increasingly connected streets from 1975 through 1976-1990, then shifted to more disconnected patterns, while Wereta built increasingly disconnected streets over time and Jeypore built increasingly disconnected streets from 1975 through 1991-2005, then improved. Looking at the full network, Wereta and Jeypore both became progressively more disconnected, while Malayer became more connected from 1975 through 1991-2005, then grew more sprawly from 1991-2005 onwards. Notably, Malayer had a more sprawly network than Jeypore in 1975 but the two have since reversed their relative ranking.