Zaranj in context: Street-network sprawl trends

Zaranj in context

12345<19751976–19901991–20052006–2020SNDi of street additions
12345<19751976–19901991–20052006–2020SNDi of entire street network
ZaranjNimroz (Region)Afghanistan (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Zaranj plotted against Nimroz and Afghanistan. The SNDi of new construction in Zaranj was at its lowest in 1991-2005, compared to Nimroz which was at its lowest in 1991-2005 and Afghanistan which followed a zig-zag trend with an overall increase. Most recently, Zaranj's incremental SNDi rose from 1.16 to 2.23 between 1991-2005 and 2006-2020. In terms of the aggregate network, Zaranj ranked 1st out of 1 cities in Nimroz and 21st out of 73 in Afghanistan as of 2020.

New Street Additions (2006–2020)

SNDi value
2.23
Rank in Afghanistan
14th of 73
Rank in Nimroz
1st of 1

Entire Network (Aggregate)

SNDi value
3.03
Rank in Afghanistan
21st of 73
Rank in Nimroz
1st of 1

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

What about similarly populated cities?

1.21.82.43<19751976–19901991–20052006–2020SNDi of street additions
1.21.82.43<19751976–19901991–20052006–2020SNDi of entire street network
ZaranjRohMidelt

In new street additions, Zaranj built increasingly connected streets from 1975 through 1991-2005, then shifted to more disconnected patterns, while Roh fluctuated in its street-construction patterns and Midelt built increasingly connected streets from 1975 through 1976-1990, then shifted to more disconnected patterns. For the full network, Zaranj and Midelt both became progressively more connected, while Roh fluctuated in connectivity.