Karlsruhe in context: Street-network sprawl trends

Karlsruhe in context

1.21.82.433.6<19751976–19901991–20052006–2020SNDi of street additions
1.21.82.433.6<19751976–19901991–20052006–2020SNDi of entire street network
KarlsruheBaden-Wurttemberg (Region)Germany (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Karlsruhe plotted against Baden-Württemberg and Germany. While Baden-Württemberg and Germany both rose steadily, Karlsruhe's new street additions rose steadily. Most recently, Karlsruhe's incremental SNDi rose from 2.06 to 2.24 between 1991-2005 and 2006-2020. In terms of the aggregate network, Karlsruhe ranked 1st out of 15 cities in Baden-Württemberg and 3rd out of 99 in Germany as of 2020.

New Street Additions (2006–2020)

SNDi value
2.24
Rank in Germany
19th of 99
Rank in Baden-Württemberg
3rd of 15

Entire Network (Aggregate)

SNDi value
1.45
Rank in Germany
3rd of 99
Rank in Baden-Württemberg
1st of 15

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

What about similarly populated cities?

1.21.82.43<19751976–19901991–20052006–2020SNDi of street additions
1.21.82.43<19751976–19901991–20052006–2020SNDi of entire street network
KarlsruheEindhovenMaseru

In new street additions, Karlsruhe and Eindhoven both built increasingly disconnected streets over time, while Maseru fluctuated in its street-construction patterns. For the full network, Karlsruhe and Eindhoven both became progressively more disconnected, while Maseru fluctuated in connectivity.