Saint Petersburg in context: Street-network sprawl trends

Saint Petersburg in context

1.62.43.24<19751976–19901991–20052006–2020SNDi of street additions
1.62.43.24<19751976–19901991–20052006–2020SNDi of entire street network
Saint PetersburgCity of St. Petersburg (Region)Russia (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Saint Petersburg plotted against City of St. Petersburg and Russia. All three follow the same trend in new construction, suggesting a shared regional pattern of development. Most recently, Saint Petersburg's incremental SNDi rose from 2.57 to 2.7 between 1991-2005 and 2006-2020. In terms of the aggregate network, Saint Petersburg ranked 2nd out of 3 cities in City of St. Petersburg and 29th out of 252 in Russia as of 2020.

New Street Additions (2006–2020)

SNDi value
2.7
Rank in Russia
65th of 252
Rank in City of St. Petersburg
3rd of 3

Entire Network (Aggregate)

SNDi value
1.7
Rank in Russia
29th of 252
Rank in City of St. Petersburg
2nd of 3

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

What about similarly populated cities?

1.42.12.83.5<19751976–19901991–20052006–2020SNDi of street additions
1.42.12.83.5<19751976–19901991–20052006–2020SNDi of entire street network
Saint PetersburgHefeiKanpur

While Hefei and Kanpur both fluctuated in its street-construction patterns, Saint Petersburg built increasingly disconnected streets over time in new street additions. For the full street network, though, all three cities follow the same trend.