Arzamas in context: Street-network sprawl trends

Arzamas 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
ArzamasNizhegorod (Region)Russia (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Arzamas plotted against Nizhegorod and Russia. The SNDi of new construction in Arzamas followed a zig-zag trend with an overall increase, compared to Nizhegorod which rose steadily and Russia which rose steadily. Most recently, Arzamas's incremental SNDi rose from 2.56 to 2.58 between 1991-2005 and 2006-2020. In terms of the aggregate network, Arzamas ranked 3rd out of 4 cities in Nizhegorod and 110th out of 252 in Russia as of 2020.

New Street Additions (2006–2020)

SNDi value
2.58
Rank in Russia
55th of 252
Rank in Nizhegorod
1st of 4

Entire Network (Aggregate)

SNDi value
2.33
Rank in Russia
110th of 252
Rank in Nizhegorod
3rd of 4

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

What about similarly populated cities?

23456<19751976–19901991–20052006–2020SNDi of street additions
23456<19751976–19901991–20052006–2020SNDi of entire street network
ArzamasPaguyanganBaghlan

In new street additions, Arzamas and Baghlan both fluctuated in its street-construction patterns, while Paguyangan built increasingly disconnected streets over time. For the full network, Arzamas and Paguyangan both became progressively more disconnected, while Baghlan fluctuated in connectivity. Notably, Arzamas had a more sprawly network than Baghlan in 1975 but the two have since reversed their relative ranking.