Emam Saheb in context: Street-network sprawl trends

Emam Saheb in context

2468<19751976–19901991–20052006–2020SNDi of street additions
2468<19751976–19901991–20052006–2020SNDi of entire street network
Emam SahebFaryab (Region)Afghanistan (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Emam Saheb plotted against Faryab and Afghanistan. The SNDi of new construction in Emam Saheb peaked in 1991-2005, compared to Faryab which fell steadily and Afghanistan which followed a zig-zag trend with an overall increase. Most recently, Emam Saheb's incremental SNDi fell from 8.47 to 1.37 between 1991-2005 and 2006-2020. In terms of the aggregate network, Emam Saheb ranked 5th out of 8 cities in Faryab and 22nd out of 73 in Afghanistan as of 2020.

New Street Additions (2006–2020)

SNDi value
1.37
Rank in Afghanistan
1st of 73
Rank in Faryab
1st of 8

Entire Network (Aggregate)

SNDi value
3.06
Rank in Afghanistan
22nd of 73
Rank in Faryab
5th of 8

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

What about similarly populated cities?

2468<19751976–19901991–20052006–2020SNDi of street additions
2468<19751976–19901991–20052006–2020SNDi of entire street network
Emam SahebHung YenXiangyun

In new street additions, Emam Saheb built increasingly disconnected streets from 1975 through 1991-2005, then improved, while Hưng Yên fluctuated in its street-construction patterns and Xiangyun fluctuated in its street-construction patterns. For the full network, Emam Saheb grew more disconnected from 1975 through 1991-2005, then improved, while Hưng Yên became more connected from 1975 through 1976-1990, then grew more sprawly from 1976-1990 onwards and Xiangyun became progressively more disconnected. Emam Saheb and Hưng Yên have been converging in their street-network character since 1975.