Qala i Naw in context: Street-network sprawl trends

Qala i Naw in context

2345<19751976–19901991–20052006–2020SNDi of street additions
2345<19751976–19901991–20052006–2020SNDi of entire street network
Qala i NawBadghis (Region)Afghanistan (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Qala i Naw plotted against Badghis and Afghanistan. The SNDi of new construction in Qala i Naw was at its lowest in 1976-1990, compared to Badghis which was at its lowest in 1991-2005 and Afghanistan which followed a zig-zag trend with an overall increase. Most recently, Qala i Naw's incremental SNDi rose from 2.59 to 2.71 between 1991-2005 and 2006-2020. In terms of the aggregate network, Qala i Naw ranked 1st out of 2 cities in Badghis and 26th out of 73 in Afghanistan as of 2020.

New Street Additions (2006–2020)

SNDi value
2.71
Rank in Afghanistan
23rd of 73
Rank in Badghis
1st of 2

Entire Network (Aggregate)

SNDi value
3.55
Rank in Afghanistan
26th of 73
Rank in Badghis
1st of 2

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

What about similarly populated cities?

2.12.83.54.2<19751976–19901991–20052006–2020SNDi of street additions
2.12.83.54.2<19751976–19901991–20052006–2020SNDi of entire street network
Qala i NawAl KajujMianeh

In new street additions, Qala i Naw and Mianeh both built increasingly connected streets from 1975 through 1976-1990, then shifted to more disconnected patterns, while Al Kajuj fluctuated in its street-construction patterns. For the full network, Qala i Naw became progressively more connected, while Al Kajuj became progressively more disconnected and Mianeh became more connected from 1975 through 1976-1990, then grew more sprawly from 1976-1990 onwards. Qala i Naw and Al Kajuj have been converging in their street-network character since 1975.