Yalta in context: Street-network sprawl trends

Yalta in context

1.82.433.6<19751976–19901991–20052006–2020SNDi of street additions
1.82.433.6<19751976–19901991–20052006–2020SNDi of entire street network
YaltaCrimea (Region)Ukraine (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Yalta plotted against Crimea and Ukraine. The SNDi of new construction in Yalta peaked in 1991-2005, compared to Crimea which followed a zig-zag trend with an overall increase and Ukraine which rose steadily. Most recently, Yalta's incremental SNDi fell from 3.35 to 2.25 between 1991-2005 and 2006-2020. In terms of the aggregate network, Yalta ranked 3rd out of 5 cities in Crimea and 21st out of 75 in Ukraine as of 2020.

New Street Additions (2006–2020)

SNDi value
2.25
Rank in Ukraine
10th of 75
Rank in Crimea
2nd of 5

Entire Network (Aggregate)

SNDi value
2.15
Rank in Ukraine
21st of 75
Rank in Crimea
3rd of 5

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

What about similarly populated cities?

123456<19751976–19901991–20052006–2020SNDi of street additions
123456<19751976–19901991–20052006–2020SNDi of entire street network
YaltaDongmingSanjiao

In new street additions, Yalta built increasingly disconnected streets from 1975 through 1991-2005, then improved, while Dongming fluctuated in its street-construction patterns and Sanjiao built increasingly connected streets from 1975 through 1991-2005, then shifted to more disconnected patterns. For the full network, Yalta became progressively more disconnected, while Dongming fluctuated in connectivity and Sanjiao became more connected from 1975 through 1991-2005, then grew more sprawly from 1991-2005 onwards. Yalta and Sanjiao have been converging in their street-network character since 1975.