Zhilkino in context: Street-network sprawl trends

Zhilkino in context

2.533.544.5<19751976–19901991–20052006–2020SNDi of street additions
2.533.544.5<19751976–19901991–20052006–2020SNDi of entire street network
ZhilkinoIrkutsk (Region)Russia (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Zhilkino plotted against Irkutsk and Russia. The SNDi of new construction in Zhilkino peaked in 1991-2005, compared to Irkutsk which followed a zig-zag trend with an overall increase and Russia which rose steadily. Most recently, Zhilkino's incremental SNDi fell from 3.94 to 3.41 between 1991-2005 and 2006-2020. In terms of the aggregate network, Zhilkino ranked 3rd out of 5 cities in Irkutsk and 173rd out of 252 in Russia as of 2020.

New Street Additions (2006–2020)

SNDi value
3.41
Rank in Russia
122nd of 252
Rank in Irkutsk
2nd of 5

Entire Network (Aggregate)

SNDi value
2.84
Rank in Russia
173rd of 252
Rank in Irkutsk
3rd of 5

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

What about similarly populated cities?

2345<19751976–19901991–20052006–2020SNDi of street additions
2345<19751976–19901991–20052006–2020SNDi of entire street network
ZhilkinoBagelenPalani

In new street additions, Zhilkino and Palani both built increasingly disconnected streets from 1975 through 1991-2005, then improved, while Bagelen built increasingly disconnected streets over time. For the full street network, though, all three cities follow the same trend. Zhilkino and Bagelen have been growing further apart in their street-network character since 1975.