Katowice in context: Street-network sprawl trends

Katowice 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
KatowiceSlaskie (Region)Poland (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Katowice plotted against Śląskie and Poland. All three follow the same trend in new construction, suggesting a shared regional pattern of development. Most recently, Katowice's incremental SNDi rose from 3.45 to 4.4 between 1991-2005 and 2006-2020. In terms of the aggregate network, Katowice ranked 3rd out of 8 cities in Śląskie and 44th out of 63 in Poland as of 2020.

New Street Additions (2006–2020)

SNDi value
4.4
Rank in Poland
55th of 63
Rank in Śląskie
6th of 8

Entire Network (Aggregate)

SNDi value
2.56
Rank in Poland
44th of 63
Rank in Śląskie
3rd of 8

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

What about similarly populated cities?

23456<19751976–19901991–20052006–2020SNDi of street additions
23456<19751976–19901991–20052006–2020SNDi of entire street network
KatowiceMarseilleKirkuk

In new street additions, Katowice built increasingly disconnected streets over time, while Marseille built increasingly disconnected streets from 1975 through 1991-2005, then improved and Kirkuk fluctuated in its street-construction patterns. For the full network, Katowice and Marseille both became progressively more disconnected, while Kirkuk fluctuated in connectivity. Notably, Katowice had a more connected network than Kirkuk in 1975 but the two have since reversed their relative ranking.