Sayad in context: Street-network sprawl trends

Sayad in context

345678<19751976–19901991–20052006–2020SNDi of street additions
345678<19751976–19901991–20052006–2020SNDi of entire street network
SayadSari Pul (Region)Afghanistan (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Sayad plotted against Sari Pul and Afghanistan. The SNDi of new construction in Sayad peaked in 1991-2005, compared to Sari Pul which peaked in 1976-1990 and Afghanistan which followed a zig-zag trend with an overall increase. Most recently, Sayad's incremental SNDi fell from 7.57 to 4.37 between 1991-2005 and 2006-2020. In terms of the aggregate network, Sayad ranked 3rd out of 3 cities in Sari Pul and 67th out of 73 in Afghanistan as of 2020.

New Street Additions (2006–2020)

SNDi value
4.37
Rank in Afghanistan
38th of 73
Rank in Sari Pul
3rd of 3

Entire Network (Aggregate)

SNDi value
6.53
Rank in Afghanistan
67th of 73
Rank in Sari Pul
3rd of 3

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
SayadKelibiaEjura

In new street additions, Kelibia and Ejura both fluctuated in street-construction patterns, while Sayad built increasingly disconnected streets from 1975 through 1991-2005, then improved. Looking at the full network, Kelibia and Ejura both fluctuated in connectivity, while Sayad grew more disconnected from 1975 through 1991-2005, then improved. Sayad and Kelibia have been growing further apart in their street-network character since 1975.