Turkmenbashy in context: Street-network sprawl trends

Turkmenbashy in context

23456<19751976–19901991–20052006–2020SNDi of street additions
23456<19751976–19901991–20052006–2020SNDi of entire street network
TurkmenbashyBalkan (Region)Turkmenistan (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Turkmenbashy plotted against Balkan and Turkmenistan. The SNDi of new construction in Turkmenbashy peaked in 1991-2005, compared to Balkan which fell steadily and Turkmenistan which followed a zig-zag trend with an overall increase. Most recently, Turkmenbashy's incremental SNDi fell from 5.72 to 4.51 between 1991-2005 and 2006-2020. In terms of the aggregate network, Turkmenbashy ranked 3rd out of 3 cities in Balkan and 8th out of 10 in Turkmenistan as of 2020.

New Street Additions (2006–2020)

SNDi value
4.51
Rank in Turkmenistan
8th of 10
Rank in Balkan
3rd of 3

Entire Network (Aggregate)

SNDi value
3.6
Rank in Turkmenistan
8th of 10
Rank in Balkan
3rd of 3

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

What about similarly populated cities?

3456<19751976–19901991–20052006–2020SNDi of street additions
3456<19751976–19901991–20052006–2020SNDi of entire street network
TurkmenbashyAl Mu`abbadahMamunkanjan

In new street additions, Turkmenbashy and Mamunkanjan both built increasingly disconnected streets from 1975 through 1991-2005, then improved, while Al Mu`abbadah built increasingly connected streets from 1975 through 1991-2005, then shifted to more disconnected patterns. For the full network, Turkmenbashy and Mamunkanjan both became progressively more disconnected, while Al Mu`abbadah became progressively more connected. Notably, Turkmenbashy had a more connected network than Al Mu`abbadah in 1975 but the two have since reversed their relative ranking.