Istalef in context: Street-network sprawl trends

Istalef in context

34567<19751976–19901991–20052006–2020SNDi of street additions
34567<19751976–19901991–20052006–2020SNDi of entire street network
IstalefKabul (Region)Afghanistan (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Istalef plotted against Kabul and Afghanistan. The SNDi of new construction in Istalef peaked in 1976-1990, compared to Kabul which rose steadily and Afghanistan which followed a zig-zag trend with an overall increase. Most recently, Istalef's incremental SNDi fell from 4.55 to 3.64 between 1991-2005 and 2006-2020. In terms of the aggregate network, Istalef ranked 4th out of 5 cities in Kabul and 58th out of 73 in Afghanistan as of 2020.

New Street Additions (2006–2020)

SNDi value
3.64
Rank in Afghanistan
29th of 73
Rank in Kabul
1st of 5

Entire Network (Aggregate)

SNDi value
5.68
Rank in Afghanistan
58th of 73
Rank in Kabul
4th of 5

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

What about similarly populated cities?

246<19751976–19901991–20052006–2020SNDi of street additions
246<19751976–19901991–20052006–2020SNDi of entire street network
IstalefCheng Xin Cun Ghammas

In new street additions, Istalef built increasingly disconnected streets from 1975 through 1976-1990, then improved, while 诚心村 fluctuated in its street-construction patterns and Ghammas built increasingly disconnected streets over time. Looking at the full network, 诚心村 and Ghammas both became progressively more disconnected, while Istalef grew more disconnected from 1975 through 1976-1990, then improved. Istalef and 诚心村 have been converging in their street-network character since 1975.