Bremen in context: Street-network sprawl trends

Bremen in context

22.533.5<19751976–19901991–20052006–2020SNDi of street additions
22.533.5<19751976–19901991–20052006–2020SNDi of entire street network
BremenGermany (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Bremen plotted against Germany. Both Bremen and Germany follow the same trend. Most recently, Bremen's incremental SNDi rose from 2.7 to 3.03 between 1991-2005 and 2006-2020. In terms of the aggregate network, Bremen ranked 44th out of 99 in Germany as of 2020.

New Street Additions (2006–2020)

SNDi value
3.03
Rank in Germany
64th of 99

Entire Network (Aggregate)

SNDi value
1.93
Rank in Germany
44th of 99

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

What about similarly populated cities?

2468<19751976–19901991–20052006–2020SNDi of street additions
2468<19751976–19901991–20052006–2020SNDi of entire street network
BremenZiyangChengde

In new street additions, Bremen and Chengde both built increasingly disconnected streets over time, while Ziyang built increasingly connected streets from 1975 through 1991-2005, then shifted to more disconnected patterns. For the full network, Bremen and Chengde both became progressively more disconnected, while Ziyang became progressively more connected. Bremen and Ziyang have been converging in their street-network character since 1975.