Leszno in context: Street-network sprawl trends

Leszno in context

2.533.54<19751976–19901991–20052006–2020SNDi of street additions
2.533.54<19751976–19901991–20052006–2020SNDi of entire street network
LesznoWielkopolskie (Region)Poland (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Leszno plotted against Wielkopolskie and Poland. The SNDi of new construction in Leszno peaked in 1991-2005, compared to Wielkopolskie which rose steadily and Poland which rose steadily. Most recently, Leszno's incremental SNDi fell from 3.51 to 3.4 between 1991-2005 and 2006-2020. In terms of the aggregate network, Leszno ranked 6th out of 6 cities in Wielkopolskie and 52nd out of 63 in Poland as of 2020.

New Street Additions (2006–2020)

SNDi value
3.4
Rank in Poland
35th of 63
Rank in Wielkopolskie
5th of 6

Entire Network (Aggregate)

SNDi value
2.73
Rank in Poland
52nd of 63
Rank in Wielkopolskie
6th of 6

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

What about similarly populated cities?

12345<19751976–19901991–20052006–2020SNDi of street additions
12345<19751976–19901991–20052006–2020SNDi of entire street network
LesznoNiksicBebedjia

Leszno, Nikšić, and Bebedjia all built increasingly disconnected streets from 1975 through 1991-2005, then improved in new street construction. The same pattern holds for the full street network.