Ingolstadt in context: Street-network sprawl trends

Ingolstadt in context

1.82.43<19751976–19901991–20052006–2020SNDi of street additions
1.82.43<19751976–19901991–20052006–2020SNDi of entire street network
IngolstadtBayern (Region)Germany (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Ingolstadt plotted against Bayern and Germany. The SNDi of new construction in Ingolstadt peaked in 1976-1990, compared to Bayern which peaked in 1991-2005 and Germany which rose steadily. Most recently, Ingolstadt's incremental SNDi fell from 1.86 to 1.58 between 1991-2005 and 2006-2020. In terms of the aggregate network, Ingolstadt ranked 2nd out of 14 cities in Bayern and 10th out of 99 in Germany as of 2020.

New Street Additions (2006–2020)

SNDi value
1.58
Rank in Germany
3rd of 99
Rank in Bayern
1st of 14

Entire Network (Aggregate)

SNDi value
1.63
Rank in Germany
10th of 99
Rank in Bayern
2nd of 14

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
IngolstadtAl QoddabaRabor

In new street additions, Ingolstadt built increasingly disconnected streets from 1975 through 1976-1990, then improved, while Al Qoddaba built increasingly disconnected streets over time and Rabor fluctuated in its street-construction patterns. For the full network, Ingolstadt grew more disconnected from 1975 through 1991-2005, then improved, while Al Qoddaba became progressively more disconnected and Rabor grew more disconnected from 1975 through 1976-1990, then improved. Ingolstadt and Al Qoddaba have been growing further apart in their street-network character since 1975.