Balkanabat in context: Street-network sprawl trends

Balkanabat in context

1.82.73.64.5<19751976–19901991–20052006–2020SNDi of street additions
1.82.73.64.5<19751976–19901991–20052006–2020SNDi of entire street network
BalkanabatBalkan (Region)Turkmenistan (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Balkanabat plotted against Balkan and Turkmenistan. The SNDi of new construction in Balkanabat followed a zig-zag trend with an overall increase, compared to Balkan which fell steadily and Turkmenistan which followed a zig-zag trend with an overall increase. Most recently, Balkanabat's incremental SNDi fell from 2.35 to 1.97 between 1991-2005 and 2006-2020. In terms of the aggregate network, Balkanabat ranked 1st out of 3 cities in Balkan and 1st out of 10 in Turkmenistan as of 2020.

New Street Additions (2006–2020)

SNDi value
1.97
Rank in Turkmenistan
1st of 10
Rank in Balkan
1st of 3

Entire Network (Aggregate)

SNDi value
1.87
Rank in Turkmenistan
1st of 10
Rank in Balkan
1st of 3

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

What about similarly populated cities?

1.62.43.24<19751976–19901991–20052006–2020SNDi of street additions
1.62.43.24<19751976–19901991–20052006–2020SNDi of entire street network
BalkanabatNamhkamRedditch

In new street additions, Balkanabat fluctuated in its street-construction patterns, while Namhkam fluctuated in its street-construction patterns and Redditch built increasingly disconnected streets from 1975 through 1991-2005, then improved. For the full network, Balkanabat became more connected from 1975 through 1976-1990, then grew more sprawly from 1976-1990 onwards, while Namhkam fluctuated in connectivity and Redditch grew more disconnected from 1975 through 1991-2005, then improved. Balkanabat and Namhkam have been growing further apart in their street-network character since 1975.