Bydgoszcz in context: Street-network sprawl trends

Bydgoszcz in context

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

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Bydgoszcz plotted against Kujawsko-Pomorskie and Poland. The SNDi of new construction in Bydgoszcz followed a zig-zag trend with an overall increase, compared to Kujawsko-Pomorskie which rose steadily and Poland which rose steadily. Most recently, Bydgoszcz's incremental SNDi rose from 3.25 to 3.42 between 1991-2005 and 2006-2020. In terms of the aggregate network, Bydgoszcz ranked 5th out of 5 cities in Kujawsko-Pomorskie and 39th out of 63 in Poland as of 2020.

New Street Additions (2006–2020)

SNDi value
3.42
Rank in Poland
37th of 63
Rank in Kujawsko-Pomorskie
5th of 5

Entire Network (Aggregate)

SNDi value
2.46
Rank in Poland
39th of 63
Rank in Kujawsko-Pomorskie
5th of 5

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

What about similarly populated cities?

2.12.83.54.24.9<19751976–19901991–20052006–2020SNDi of street additions
2.12.83.54.24.9<19751976–19901991–20052006–2020SNDi of entire street network
BydgoszczKaunasTai Po

In new street additions, Bydgoszcz and Tai Po both fluctuated in its street-construction patterns, while Kaunas built increasingly disconnected streets over time. For the full street network, though, all three cities follow the same trend. Bydgoszcz and Kaunas have been growing further apart in their street-network character since 1975.