Wuppertal in context: Street-network sprawl trends

Wuppertal in context

22.42.83.2<19751976–19901991–20052006–2020SNDi of street additions
22.42.83.2<19751976–19901991–20052006–2020SNDi of entire street network
WuppertalNordrhein-Westfalen (Region)Germany (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Wuppertal plotted against Nordrhein-Westfalen and Germany. All three follow the same trend in new construction, suggesting a shared regional pattern of development. Most recently, Wuppertal's incremental SNDi rose from 3.21 to 3.33 between 1991-2005 and 2006-2020. In terms of the aggregate network, Wuppertal ranked 14th out of 24 cities in Nordrhein-Westfalen and 75th out of 99 in Germany as of 2020.

New Street Additions (2006–2020)

SNDi value
3.33
Rank in Germany
78th of 99
Rank in Nordrhein-Westfalen
19th of 24

Entire Network (Aggregate)

SNDi value
2.28
Rank in Germany
75th of 99
Rank in Nordrhein-Westfalen
14th of 24

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

What about similarly populated cities?

22.533.5<19751976–19901991–20052006–2020SNDi of street additions
22.533.5<19751976–19901991–20052006–2020SNDi of entire street network
WuppertalJinchengZaria

In new street additions, Wuppertal and Zaria both built increasingly disconnected streets over time, while Jincheng built increasingly disconnected streets from 1975 through 1976-1990, then improved. For the full street network, though, all three cities follow the same trend. Wuppertal and Zaria have been growing further apart in their street-network character since 1975.