Doğubayazıt in context: Street-network sprawl trends

Dogubayazit in context

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
DogubayazitAgri (Region)Turkey (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Doğubayazıt plotted against Agri and Turkey. The SNDi of new construction in Doğubayazıt fell steadily, compared to Agri which peaked in 1976-1990 and Turkey which followed a zig-zag trend with an overall increase. Most recently, Doğubayazıt's incremental SNDi fell from 2.43 to 2.26 between 1991-2005 and 2006-2020. In terms of the aggregate network, Doğubayazıt ranked 1st out of 3 cities in Agri and 152nd out of 174 in Turkey as of 2020.

New Street Additions (2006–2020)

SNDi value
2.26
Rank in Turkey
85th of 174
Rank in Agri
1st of 3

Entire Network (Aggregate)

SNDi value
2.99
Rank in Turkey
152nd of 174
Rank in Agri
1st of 3

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

What about similarly populated cities?

012345<19751976–19901991–20052006–2020SNDi of street additions
012345<19751976–19901991–20052006–2020SNDi of entire street network
DogubayazitDegehaburKultaevo

In new street additions, Doğubayazıt built increasingly connected streets over time, while Degehabur fluctuated in its street-construction patterns and Kultaevo built increasingly connected streets from 1975 through 1991-2005, then shifted to more disconnected patterns. For the full network, Doğubayazıt became progressively more connected, while Degehabur became progressively more disconnected and Kultaevo grew more disconnected from 1975 through 1976-1990, then improved. Doğubayazıt and Degehabur have been converging in their street-network character since 1975.