Lübeck in context: Street-network sprawl trends

Lubeck in context

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

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Lübeck plotted against Schleswig-Holstein and Germany. The SNDi of new construction in Lübeck peaked in 1991-2005, compared to Schleswig-Holstein which peaked in 1991-2005 and Germany which rose steadily. Most recently, Lübeck's incremental SNDi fell from 3.27 to 2.23 between 1991-2005 and 2006-2020. In terms of the aggregate network, Lübeck ranked 3rd out of 5 cities in Schleswig-Holstein and 62nd out of 99 in Germany as of 2020.

New Street Additions (2006–2020)

SNDi value
2.23
Rank in Germany
18th of 99
Rank in Schleswig-Holstein
2nd of 5

Entire Network (Aggregate)

SNDi value
2.09
Rank in Germany
62nd of 99
Rank in Schleswig-Holstein
3rd of 5

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

What about similarly populated cities?

1.82.43<19751976–19901991–20052006–2020SNDi of street additions
1.82.43<19751976–19901991–20052006–2020SNDi of entire street network
LubeckJinghaiOrdu

In new street additions, Lübeck built increasingly disconnected streets from 1975 through 1991-2005, then improved, while Jinghai built increasingly disconnected streets from 1975 through 1976-1990, then improved and Ordu fluctuated in its street-construction patterns. For the full street network, though, all three cities follow the same trend.