Izhevsk in context: Street-network sprawl trends

Izhevsk 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
IzhevskUdmurt (Region)Russia (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Izhevsk plotted against Udmurt and Russia. The SNDi of new construction in Izhevsk peaked in 1991-2005, compared to Udmurt which rose steadily and Russia which rose steadily. Most recently, Izhevsk's incremental SNDi fell from 3.12 to 2.8 between 1991-2005 and 2006-2020. In terms of the aggregate network, Izhevsk ranked 2nd out of 4 cities in Udmurt and 39th out of 252 in Russia as of 2020.

New Street Additions (2006–2020)

SNDi value
2.8
Rank in Russia
72nd of 252
Rank in Udmurt
2nd of 4

Entire Network (Aggregate)

SNDi value
1.82
Rank in Russia
39th of 252
Rank in Udmurt
2nd of 4

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
IzhevskXiashanYichun

In new street additions, Izhevsk built increasingly disconnected streets from 1975 through 1991-2005, then improved, while Xiashan built increasingly disconnected streets over time and Yichun built increasingly disconnected streets from 1975 through 1976-1990, then improved. For the full network, Izhevsk and Xiashan both became progressively more disconnected, while Yichun became progressively more connected. Izhevsk and Yichun have been converging in their street-network character since 1975.