Heilbronn in context: Street-network sprawl trends

Heilbronn in context

2.12.83.54.2<19751976–19901991–20052006–2020SNDi of street additions
2.12.83.54.2<19751976–19901991–20052006–2020SNDi of entire street network
HeilbronnBaden-Wurttemberg (Region)Germany (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Heilbronn plotted against Baden-Württemberg and Germany. The SNDi of new construction in Heilbronn followed a zig-zag trend with an overall increase, compared to Baden-Württemberg which followed a zig-zag trend with an overall increase and Germany which rose steadily. Most recently, Heilbronn's incremental SNDi rose from 3.38 to 4.34 between 1991-2005 and 2006-2020. In terms of the aggregate network, Heilbronn ranked 14th out of 15 cities in Baden-Württemberg and 73rd out of 99 in Germany as of 2020.

New Street Additions (2006–2020)

SNDi value
4.34
Rank in Germany
92nd of 99
Rank in Baden-Württemberg
15th of 15

Entire Network (Aggregate)

SNDi value
2.27
Rank in Germany
73rd of 99
Rank in Baden-Württemberg
14th of 15

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

What about similarly populated cities?

23456<19751976–19901991–20052006–2020SNDi of street additions
23456<19751976–19901991–20052006–2020SNDi of entire street network
HeilbronnDipologFarooqabad

In new street additions, Heilbronn fluctuated in its street-construction patterns, while Dipolog built increasingly disconnected streets over time and Farooqabad fluctuated in its street-construction patterns. For the full network, Heilbronn and Dipolog both became progressively more disconnected, while Farooqabad became more connected from 1975 through 1976-1990, then grew more sprawly from 1976-1990 onwards. Heilbronn and Dipolog have been growing further apart in their street-network character since 1975.