Innsbruck in context: Street-network sprawl trends

Innsbruck 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
InnsbruckTirol (Region)Austria (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Innsbruck plotted against Tirol and Austria. The SNDi of new construction in Innsbruck peaked in 1991-2005, compared to Tirol which rose steadily and Austria which rose steadily. Most recently, Innsbruck's incremental SNDi fell from 2.95 to 2.78 between 1991-2005 and 2006-2020. In terms of the aggregate network, Innsbruck ranked 1st out of 1 cities in Tirol and 3rd out of 8 in Austria as of 2020.

New Street Additions (2006–2020)

SNDi value
2.78
Rank in Austria
5th of 8
Rank in Tirol
1st of 1

Entire Network (Aggregate)

SNDi value
1.83
Rank in Austria
3rd of 8
Rank in Tirol
1st of 1

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

What about similarly populated cities?

1.62.43.24<19751976–19901991–20052006–2020SNDi of street additions
1.62.43.24<19751976–19901991–20052006–2020SNDi of entire street network
InnsbruckAl-RumaithaCidade Ocidental

While Al-Rumaitha and Cidade Ocidental both built increasingly disconnected streets over time, Innsbruck built increasingly disconnected streets from 1975 through 1991-2005, then improved in new street additions. For the full street network, though, all three cities follow the same trend. Innsbruck and Cidade Ocidental have been growing further apart in their street-network character since 1975.