Stavanger in context: Street-network sprawl trends

Stavanger in context

2.433.64.2<19751976–19901991–20052006–2020SNDi of street additions
2.433.64.2<19751976–19901991–20052006–2020SNDi of entire street network
StavangerRogaland (Region)Norway (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Stavanger plotted against Rogaland and Norway. The SNDi of new construction in Stavanger peaked in 1976-1990, compared to Rogaland which peaked in 1976-1990 and Norway which rose steadily. Most recently, Stavanger's incremental SNDi fell from 3.29 to 2.61 between 1991-2005 and 2006-2020. In terms of the aggregate network, Stavanger ranked 1st out of 1 cities in Rogaland and 5th out of 8 in Norway as of 2020.

New Street Additions (2006–2020)

SNDi value
2.61
Rank in Norway
1st of 8
Rank in Rogaland
1st of 1

Entire Network (Aggregate)

SNDi value
2.91
Rank in Norway
5th of 8
Rank in Rogaland
1st of 1

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

What about similarly populated cities?

2.533.54<19751976–19901991–20052006–2020SNDi of street additions
2.533.54<19751976–19901991–20052006–2020SNDi of entire street network
StavangerLaytonDabra

In new street additions, Stavanger built increasingly disconnected streets from 1975 through 1976-1990, then improved, while Layton built increasingly disconnected streets over time and Dabra built increasingly connected streets from 1975 through 1976-1990, then shifted to more disconnected patterns. For the full network, Stavanger grew more disconnected from 1975 through 1991-2005, then improved, while Layton became progressively more disconnected and Dabra became more connected from 1975 through 1976-1990, then grew more sprawly from 1976-1990 onwards.