Zarand 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 Zarand plotted against Kerman and Iran. The SNDi of new construction in Zarand peaked in 1976-1990, compared to Kerman which fell steadily and Iran which rose steadily. Most recently, Zarand's incremental SNDi fell from 2.1 to 1.81 between 1991-2005 and 2006-2020. In terms of the aggregate network, Zarand ranked 4th out of 14 cities in Kerman and 16th 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?

• Kisenge, Democratic Republic of the Congo
• N'zeto, Angola
• Ibamba, Tanzania
• Manaure, Colombia
• Tanjung Piayu, Indonesia
• Dabo, Indonesia

In new street additions, Zarand and Manaure both built increasingly disconnected streets from 1975 through 1976-1990, then improved, while Kisenge built increasingly disconnected streets over time. For the full network, Zarand and Manaure both grew more disconnected from 1975 through 1976-1990, then improved, while Kisenge became progressively more disconnected. Zarand and Kisenge have been converging in their street-network character since 1975.