Legionowo in context: Street-network sprawl trends

Legionowo 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
LegionowoMazowieckie (Region)Poland (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Legionowo plotted against Mazowieckie and Poland. The SNDi of new construction in Legionowo peaked in 1991-2005, compared to Mazowieckie which rose steadily and Poland which rose steadily. Most recently, Legionowo's incremental SNDi fell from 3.31 to 2.88 between 1991-2005 and 2006-2020. In terms of the aggregate network, Legionowo ranked 3rd out of 6 cities in Mazowieckie and 40th out of 63 in Poland as of 2020.

New Street Additions (2006–2020)

SNDi value
2.88
Rank in Poland
21st of 63
Rank in Mazowieckie
2nd of 6

Entire Network (Aggregate)

SNDi value
2.48
Rank in Poland
40th of 63
Rank in Mazowieckie
3rd of 6

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

What about similarly populated cities?

061218<19751976–19901991–20052006–2020SNDi of street additions
061218<19751976–19901991–20052006–2020SNDi of entire street network
LegionowoKuchiamoraDahariz park

In new street additions, Legionowo built increasingly disconnected streets from 1975 through 1991-2005, then improved, while Kuchiamora built increasingly connected streets over time and Dahariz park built increasingly disconnected streets over time. For the full network, Legionowo and Dahariz park both became progressively more disconnected, while Kuchiamora became more connected from 1975 through 1991-2005, then grew more sprawly from 1991-2005 onwards. Notably, Legionowo had a more connected network than Dahariz park in 1975 but the two have since reversed their relative ranking.