Angarsk in context: Street-network sprawl trends

Angarsk in context

2.12.83.54.2<19751976–19901991–20052006–2020SNDi of street additions
2.12.83.54.2<19751976–19901991–20052006–2020SNDi of entire street network
AngarskIrkutsk (Region)Russia (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Angarsk plotted against Irkutsk and Russia. The SNDi of new construction in Angarsk followed a zig-zag trend with an overall increase, compared to Irkutsk which followed a zig-zag trend with an overall increase and Russia which rose steadily. Most recently, Angarsk's incremental SNDi rose from 2.94 to 3.51 between 1991-2005 and 2006-2020. In terms of the aggregate network, Angarsk ranked 1st out of 5 cities in Irkutsk and 97th out of 252 in Russia as of 2020.

New Street Additions (2006–2020)

SNDi value
3.51
Rank in Russia
129th of 252
Rank in Irkutsk
3rd of 5

Entire Network (Aggregate)

SNDi value
2.23
Rank in Russia
97th of 252
Rank in Irkutsk
1st 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
AngarskButaChittoor

In new street additions, Angarsk and Buta both fluctuated in its street-construction patterns, while Chittoor built increasingly disconnected streets over time. For the full street network, though, all three cities follow the same trend. Notably, Angarsk had a more sprawly network than Chittoor in 1975 but the two have since reversed their relative ranking.