Lodz in context: Street-network sprawl trends

Lodz in context

1.42.12.83.54.2<19751976–19901991–20052006–2020SNDi of street additions
1.42.12.83.54.2<19751976–19901991–20052006–2020SNDi of entire street network
LodzLodzkie (Region)Poland (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Lodz plotted against Łódzkie and Poland. All three follow the same trend in new construction, suggesting a shared regional pattern of development. Most recently, Lodz's incremental SNDi rose from 2.5 to 2.51 between 1991-2005 and 2006-2020. In terms of the aggregate network, Lodz ranked 1st out of 5 cities in Łódzkie and 6th out of 63 in Poland as of 2020.

New Street Additions (2006–2020)

SNDi value
2.51
Rank in Poland
13th of 63
Rank in Łódzkie
2nd of 5

Entire Network (Aggregate)

SNDi value
1.8
Rank in Poland
6th of 63
Rank in Łódzkie
1st of 5

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
LodzQuzhouKuningan

In new street additions, Lodz built increasingly disconnected streets over time, while Quzhou built increasingly disconnected streets from 1975 through 1976-1990, then improved and Kuningan built increasingly disconnected streets from 1975 through 1991-2005, then improved. For the full network, Lodz and Kuningan both became progressively more disconnected, while Quzhou grew more disconnected from 1975 through 1991-2005, then improved. Lodz and Quzhou have been growing further apart in their street-network character since 1975.