Rybnik in context: Street-network sprawl trends

Rybnik 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
RybnikSlaskie (Region)Poland (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Rybnik plotted against Śląskie and Poland. All three follow the same trend in new construction, suggesting a shared regional pattern of development. Most recently, Rybnik's incremental SNDi rose from 4.1 to 4.25 between 1991-2005 and 2006-2020. In terms of the aggregate network, Rybnik ranked 8th out of 8 cities in Śląskie and 62nd out of 63 in Poland as of 2020.

New Street Additions (2006–2020)

SNDi value
4.25
Rank in Poland
54th of 63
Rank in Śląskie
5th of 8

Entire Network (Aggregate)

SNDi value
3.23
Rank in Poland
62nd of 63
Rank in Śląskie
8th of 8

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

What about similarly populated cities?

246<19751976–19901991–20052006–2020SNDi of street additions
246<19751976–19901991–20052006–2020SNDi of entire street network
RybnikKaratsuSan Rafael

In new street additions, Rybnik built increasingly disconnected streets over time, while Karatsu built increasingly disconnected streets from 1975 through 1976-1990, then improved and San Rafael fluctuated in its street-construction patterns. For the full street network, though, all three cities follow the same trend.