Hamm in context: Street-network sprawl trends

Hamm in context

22.533.5<19751976–19901991–20052006–2020SNDi of street additions
22.533.5<19751976–19901991–20052006–2020SNDi of entire street network
HammNordrhein-Westfalen (Region)Germany (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Hamm plotted against Nordrhein-Westfalen and Germany. The SNDi of new construction in Hamm peaked in 1991-2005, compared to Nordrhein-Westfalen which rose steadily and Germany which rose steadily. Most recently, Hamm's incremental SNDi fell from 2.81 to 2.03 between 1991-2005 and 2006-2020. In terms of the aggregate network, Hamm ranked 3rd out of 24 cities in Nordrhein-Westfalen and 36th out of 99 in Germany as of 2020.

New Street Additions (2006–2020)

SNDi value
2.03
Rank in Germany
11th of 99
Rank in Nordrhein-Westfalen
3rd of 24

Entire Network (Aggregate)

SNDi value
1.9
Rank in Germany
36th of 99
Rank in Nordrhein-Westfalen
3rd of 24

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

What about similarly populated cities?

2345<19751976–19901991–20052006–2020SNDi of street additions
2345<19751976–19901991–20052006–2020SNDi of entire street network
HammProletarShajapur

In new street additions, Hamm and Proletar both built increasingly disconnected streets from 1975 through 1991-2005, then improved, while Shajapur built increasingly disconnected streets over time. For the full street network, though, all three cities follow the same trend.