Syzran in context: Street-network sprawl trends

Syzran in context

234567<19751976–19901991–20052006–2020SNDi of street additions
234567<19751976–19901991–20052006–2020SNDi of entire street network
SyzranSamara (Region)Russia (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Syzran plotted against Samara and Russia. All three follow the same trend in new construction, suggesting a shared regional pattern of development. Most recently, Syzran's incremental SNDi rose from 4.56 to 6.72 between 1991-2005 and 2006-2020. In terms of the aggregate network, Syzran ranked 5th out of 6 cities in Samara and 184th out of 252 in Russia as of 2020.

New Street Additions (2006–2020)

SNDi value
6.72
Rank in Russia
243rd of 252
Rank in Samara
5th of 6

Entire Network (Aggregate)

SNDi value
2.96
Rank in Russia
184th of 252
Rank in Samara
5th of 6

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

What about similarly populated cities?

2468<19751976–19901991–20052006–2020SNDi of street additions
2468<19751976–19901991–20052006–2020SNDi of entire street network
SyzranRajimLynn

While Rajim and Lynn both built increasingly disconnected streets from 1975 through 1976-1990, then improved, Syzran built increasingly disconnected streets over time in new street additions. For the full network, Syzran and Lynn both became progressively more disconnected, while Rajim grew more disconnected from 1975 through 1991-2005, then improved. Syzran and Rajim have been converging in their street-network character since 1975.